Welcome to LookChem.com Sign In|Join Free

CAS

  • or

191226-98-9

Post Buying Request

191226-98-9 Suppliers

Recommended suppliersmore

  • Product
  • FOB Price
  • Min.Order
  • Supply Ability
  • Supplier
  • Contact Supplier
  • High purity tert-Butyl [(1S,2R)-1-benzyl-2-hydroxy-3-[isobutyl[(4-nitrophenyl)sulfonyl]amino]propyl]carbamate CAS No.:191226-98-9

    Cas No: 191226-98-9

  • USD $ 2.0-2.0 / Kilogram

  • 1 Kilogram

  • 1 Metric Ton/Month

  • Hangzhou Think Chemical Co. Ltd
  • Contact Supplier
  • {(1S,2R)-1-Benzyl-2-hydroxy-3-{isobutyl-[(4-nitrophenyl)-sulfonyl]-amino}-propyl}-carbamic acid tert-butyl ester

    Cas No: 191226-98-9

  • USD $ 1.2-5.0 / Kiloliter

  • 5 Kiloliter

  • 3000 Metric Ton/Month

  • Chemwill Asia Co., Ltd.
  • Contact Supplier

191226-98-9 Usage

Chemical Properties

White Solid

Check Digit Verification of cas no

The CAS Registry Mumber 191226-98-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,1,2,2 and 6 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 191226-98:
(8*1)+(7*9)+(6*1)+(5*2)+(4*2)+(3*6)+(2*9)+(1*8)=139
139 % 10 = 9
So 191226-98-9 is a valid CAS Registry Number.
InChI:InChI=1/C25H35N3O7S/c1-18(2)16-27(36(33,34)21-13-11-20(12-14-21)28(31)32)17-23(29)22(15-19-9-7-6-8-10-19)26-24(30)35-25(3,4)5/h6-14,18,22-23,29H,15-17H2,1-5H3,(H,26,30)/t22-,23+/m0/s1

191226-98-9Synthetic route

4-Nitrobenzenesulfonyl chloride
98-74-8

4-Nitrobenzenesulfonyl chloride

(2R,3S)-3-tert-butoxycarbonylamino-1-isobutylamino-4-phenyl-2-butanol
160232-08-6

(2R,3S)-3-tert-butoxycarbonylamino-1-isobutylamino-4-phenyl-2-butanol

[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester
191226-98-9

[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester

Conditions
ConditionsYield
With sodium hydrogencarbonate In dichloromethane; water at 20℃; for 21h;100%
With dmap; N-ethyl-N,N-diisopropylamine In tetrahydrofuran at 0 - 25℃; for 4h;98.2%
With sodium hydrogencarbonate In dichloromethane; water at 23℃; for 12h;96%
isobutylamine
78-81-9

isobutylamine

(1-oxiranyl-2-phenylethyl)carbamic acid tert-butyl ester
98760-08-8, 98818-34-9, 98818-35-0, 103127-56-6, 98737-29-2

(1-oxiranyl-2-phenylethyl)carbamic acid tert-butyl ester

4-Nitrobenzenesulfonyl chloride
98-74-8

4-Nitrobenzenesulfonyl chloride

[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester
191226-98-9

[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester

Conditions
ConditionsYield
Stage #1: isobutylamine; (1-oxiranyl-2-phenylethyl)carbamic acid tert-butyl ester for 3h; Heating;
Stage #2: 4-Nitrobenzenesulfonyl chloride With triethylamine In dichloromethane Reflux;
92.88%
(1-oxiranyl-2-phenylethyl)carbamic acid tert-butyl ester
98760-08-8, 98818-34-9, 98818-35-0, 103127-56-6, 98737-29-2

(1-oxiranyl-2-phenylethyl)carbamic acid tert-butyl ester

[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester
191226-98-9

[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: ethanol / 3 h / 80 °C
2: aq. Na2CO3 / CH2Cl2 / 0 - 20 °C
View Scheme
Multi-step reaction with 2 steps
1: propan-2-ol / 2 h / 80 °C
2: 0.88 g / triethylamine / CH2Cl2 / 4 h / 20 °C
View Scheme
Multi-step reaction with 2 steps
1: 97 percent / propan-2-ol / 3 h / 80 °C
2: 90 percent / Et3N / CH2Cl2 / 16 h
View Scheme
2(R)-((tert-butyloxycarbonyl)amino)-1,4-dichloro-3(S)-hydroxybutane
326479-99-6

2(R)-((tert-butyloxycarbonyl)amino)-1,4-dichloro-3(S)-hydroxybutane

[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester
191226-98-9

[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester

Conditions
ConditionsYield
Multi-step reaction with 6 steps
1.1: p-TsOH*H2O / CH2Cl2
2.1: NaH / tetrahydrofuran
3.1: CuBr*SMe2 / tetrahydrofuran
4.1: p-TsOH*H2O
4.2: KOH / methanol
5.1: 90 percent / propan-2-ol / 5 h / 50 °C
6.1: 88 percent / Et3N / CH2Cl2 / 12 h / 20 °C
View Scheme
Multi-step reaction with 6 steps
1: 100 percent / imidazole; DMAP / dimethylformamide / 12 h / 50 °C
2: 100 percent / NaH / tetrahydrofuran / 5 h / 0 °C
3: 75 percent / CuBr*Me2S / toluene; tetrahydrofuran / -78 - -20 °C
4: Bu4NF / tetrahydrofuran
5: 90 percent / propan-2-ol / 5 h / 50 °C
6: 88 percent / Et3N / CH2Cl2 / 12 h / 20 °C
View Scheme
Multi-step reaction with 6 steps
1.1: 100 percent / imidazole; DMAP / dimethylformamide / 12 h / 50 °C
2.1: 100 percent / NaH / tetrahydrofuran / 5 h / 0 °C
3.1: 82 percent / Et3N / methanol / 18 h / 20 °C
4.1: TBAF / tetrahydrofuran / 0.67 h / 20 °C
4.2: 75 percent / KOH / methanol / 2 h / 20 °C
5.1: 90 percent / propan-2-ol / 5 h / 50 °C
6.1: 88 percent / Et3N / CH2Cl2 / 12 h / 20 °C
View Scheme
N-t-butyloxycarbonyl-2(S)-(1(S)-t-butyldimethylsilyloxy-2-chloroethyl)aziridine
326480-01-7

N-t-butyloxycarbonyl-2(S)-(1(S)-t-butyldimethylsilyloxy-2-chloroethyl)aziridine

[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester
191226-98-9

[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1: 75 percent / CuBr*Me2S / toluene; tetrahydrofuran / -78 - -20 °C
2: Bu4NF / tetrahydrofuran
3: 90 percent / propan-2-ol / 5 h / 50 °C
4: 88 percent / Et3N / CH2Cl2 / 12 h / 20 °C
View Scheme
Multi-step reaction with 4 steps
1.1: 82 percent / Et3N / methanol / 18 h / 20 °C
2.1: TBAF / tetrahydrofuran / 0.67 h / 20 °C
2.2: 75 percent / KOH / methanol / 2 h / 20 °C
3.1: 90 percent / propan-2-ol / 5 h / 50 °C
4.1: 88 percent / Et3N / CH2Cl2 / 12 h / 20 °C
View Scheme
(S)-2-[(S)-2-Chloro-1-(tetrahydro-pyran-2-yloxy)-ethyl]-aziridine-1-carboxylic acid tert-butyl ester
357604-37-6

(S)-2-[(S)-2-Chloro-1-(tetrahydro-pyran-2-yloxy)-ethyl]-aziridine-1-carboxylic acid tert-butyl ester

[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester
191226-98-9

[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1.1: CuBr*SMe2 / tetrahydrofuran
2.1: p-TsOH*H2O
2.2: KOH / methanol
3.1: 90 percent / propan-2-ol / 5 h / 50 °C
4.1: 88 percent / Et3N / CH2Cl2 / 12 h / 20 °C
View Scheme
2(S)-t-butyldimethylsilyloxy-3(R)-(t-butyloxycarbonyl)amino-1,4-dichlorobutane
326480-00-6

2(S)-t-butyldimethylsilyloxy-3(R)-(t-butyloxycarbonyl)amino-1,4-dichlorobutane

[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester
191226-98-9

[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester

Conditions
ConditionsYield
Multi-step reaction with 5 steps
1: 100 percent / NaH / tetrahydrofuran / 5 h / 0 °C
2: 75 percent / CuBr*Me2S / toluene; tetrahydrofuran / -78 - -20 °C
3: Bu4NF / tetrahydrofuran
4: 90 percent / propan-2-ol / 5 h / 50 °C
5: 88 percent / Et3N / CH2Cl2 / 12 h / 20 °C
View Scheme
Multi-step reaction with 5 steps
1.1: 100 percent / NaH / tetrahydrofuran / 5 h / 0 °C
2.1: 82 percent / Et3N / methanol / 18 h / 20 °C
3.1: TBAF / tetrahydrofuran / 0.67 h / 20 °C
3.2: 75 percent / KOH / methanol / 2 h / 20 °C
4.1: 90 percent / propan-2-ol / 5 h / 50 °C
5.1: 88 percent / Et3N / CH2Cl2 / 12 h / 20 °C
View Scheme
[(1R,2S)-3-Chloro-1-chloromethyl-2-(tetrahydro-pyran-2-yloxy)-propyl]-carbamic acid tert-butyl ester
357604-36-5

[(1R,2S)-3-Chloro-1-chloromethyl-2-(tetrahydro-pyran-2-yloxy)-propyl]-carbamic acid tert-butyl ester

[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester
191226-98-9

[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester

Conditions
ConditionsYield
Multi-step reaction with 5 steps
1.1: NaH / tetrahydrofuran
2.1: CuBr*SMe2 / tetrahydrofuran
3.1: p-TsOH*H2O
3.2: KOH / methanol
4.1: 90 percent / propan-2-ol / 5 h / 50 °C
5.1: 88 percent / Et3N / CH2Cl2 / 12 h / 20 °C
View Scheme
[(1S,2S)-1-Benzyl-3-chloro-2-(tetrahydro-pyran-2-yloxy)-propyl]-carbamic acid tert-butyl ester
357604-38-7

[(1S,2S)-1-Benzyl-3-chloro-2-(tetrahydro-pyran-2-yloxy)-propyl]-carbamic acid tert-butyl ester

[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester
191226-98-9

[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1.1: p-TsOH*H2O
1.2: KOH / methanol
2.1: 90 percent / propan-2-ol / 5 h / 50 °C
3.1: 88 percent / Et3N / CH2Cl2 / 12 h / 20 °C
View Scheme
2(S)-t-butyldimethylsilyloxy-3(S)-(t-butyloxycarbonyl)amino-1-chloro-4-phenylbutane
326480-02-8

2(S)-t-butyldimethylsilyloxy-3(S)-(t-butyloxycarbonyl)amino-1-chloro-4-phenylbutane

[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester
191226-98-9

[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: Bu4NF / tetrahydrofuran
2: 90 percent / propan-2-ol / 5 h / 50 °C
3: 88 percent / Et3N / CH2Cl2 / 12 h / 20 °C
View Scheme
(3S)-t-butyldimethylsilyloxy-(2R)-(t-butyloxycarbonyl)amino-4-chloro-1-phenylthiobutane
357604-39-8

(3S)-t-butyldimethylsilyloxy-(2R)-(t-butyloxycarbonyl)amino-4-chloro-1-phenylthiobutane

[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester
191226-98-9

[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1.1: TBAF / tetrahydrofuran / 0.67 h / 20 °C
1.2: 75 percent / KOH / methanol / 2 h / 20 °C
2.1: 90 percent / propan-2-ol / 5 h / 50 °C
3.1: 88 percent / Et3N / CH2Cl2 / 12 h / 20 °C
View Scheme
tert-butyl ((2S)-4-chloro-3-hydroxy-1-phenylbutan-2-yl)carbamate
1229623-13-5

tert-butyl ((2S)-4-chloro-3-hydroxy-1-phenylbutan-2-yl)carbamate

[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester
191226-98-9

[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1.1: sodium hydrogencarbonate / dichloromethane / 5 h / Reflux
2.1: triethylamine / dichloromethane / Reflux
2.2: Reflux
View Scheme
1(R,S)-<1'-(S)-<(tert-butyloxycarbonyl)amino>-2-phenylethyl>oxirane
220871-52-3

1(R,S)-<1'-(S)-<(tert-butyloxycarbonyl)amino>-2-phenylethyl>oxirane

[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester
191226-98-9

[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: isopropyl alcohol / 6 h / 80 °C
2: triethylamine / dichloromethane / 12 h / 0 - 20 °C
View Scheme
N-(tert-butoxycarbonyl)-L-phenylalanine chlorohydrine

N-(tert-butoxycarbonyl)-L-phenylalanine chlorohydrine

[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester
191226-98-9

[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: sodium hydrogencarbonate / dichloromethane / 5 h / Reflux
2: triethylamine / dichloromethane / Reflux
View Scheme
4-Nitrobenzenesulfonyl chloride
98-74-8

4-Nitrobenzenesulfonyl chloride

[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester
191226-98-9

[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 1,4-dioxane / 1 h / 10 - 25 °C
2: potassium carbonate; N-benzyl-N,N,N-triethylammonium chloride / 1,4-dioxane / 6 h / 80 - 85 °C
View Scheme
N-isobutyl-4-nitrobenzenesulfonamide
89840-80-2

N-isobutyl-4-nitrobenzenesulfonamide

(1-oxiranyl-2-phenylethyl)carbamic acid tert-butyl ester
98760-08-8, 98818-34-9, 98818-35-0, 103127-56-6, 98737-29-2

(1-oxiranyl-2-phenylethyl)carbamic acid tert-butyl ester

[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester
191226-98-9

[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester

Conditions
ConditionsYield
With N-benzyl-N,N,N-triethylammonium chloride; potassium carbonate In 1,4-dioxane at 80 - 85℃; for 6h;10 g
tert-butyl ((2S,3S)-4-chloro-3-hydroxy-1-phenylbutan-2-yl)carbamate
165727-45-7

tert-butyl ((2S,3S)-4-chloro-3-hydroxy-1-phenylbutan-2-yl)carbamate

[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester
191226-98-9

[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: sodium carbonate / water / 3 h / 60 - 65 °C
2: triethylamine / dichloromethane / 40 - 45 °C
View Scheme
Multi-step reaction with 2 steps
1: potassium hydroxide / ethanol / 15 - 20 °C / Large scale
2: triethylamine / isopropyl alcohol / 40 - 60 °C / Large scale
View Scheme
C15H20N3O3(1+)
910642-68-1

C15H20N3O3(1+)

[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester
191226-98-9

[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1: hydrogenchloride
2: aluminum isopropoxide / isopropyl alcohol / 3 h / Reflux
3: sodium carbonate / water / 3 h / 60 - 65 °C
4: triethylamine / dichloromethane / 40 - 45 °C
View Scheme
(S)-tert-butyl (4-chloro-3-oxo-1-phenylbutan-2-yl)carbamate
102123-74-0

(S)-tert-butyl (4-chloro-3-oxo-1-phenylbutan-2-yl)carbamate

[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester
191226-98-9

[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: aluminum isopropoxide / isopropyl alcohol / 3 h / Reflux
2: sodium carbonate / water / 3 h / 60 - 65 °C
3: triethylamine / dichloromethane / 40 - 45 °C
View Scheme
Multi-step reaction with 3 steps
1: aluminum isopropoxide / isopropyl alcohol / 3 h / Reflux
2: sodium carbonate / water / 3 h / 60 - 65 °C
3: triethylamine / dichloromethane / 40 - 45 °C
View Scheme
Multi-step reaction with 3 steps
1: aluminum sec-butoxide / toluene; 2-methyl-propan-1-ol / 15 - 20 °C / Large scale
2: potassium hydroxide / ethanol / 15 - 20 °C / Large scale
3: triethylamine / isopropyl alcohol / 40 - 60 °C / Large scale
View Scheme
N-tert-butoxycarbonyl-L-phenylalanine
13734-34-4

N-tert-butoxycarbonyl-L-phenylalanine

[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester
191226-98-9

[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1: triethylamine
2: aluminum sec-butoxide / toluene; 2-methyl-propan-1-ol / 15 - 20 °C / Large scale
3: potassium hydroxide / ethanol / 15 - 20 °C / Large scale
4: triethylamine / isopropyl alcohol / 40 - 60 °C / Large scale
View Scheme
(2R,3S)-3-[N-(tert-butyloxycarbonyl)amino]-1,2-epoxy-4-phenylbutane
98760-08-8

(2R,3S)-3-[N-(tert-butyloxycarbonyl)amino]-1,2-epoxy-4-phenylbutane

[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester
191226-98-9

[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: isopropyl alcohol / 20 - 30 °C
2: triethylamine / dichloromethane / 15 - 25 °C
View Scheme
[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester
191226-98-9

[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester

N-(3S-amino-2R-hydroxy-4-phenylbutyl)-N-isobutyl-4-nitro-benzenesulfonamide hydrochloride
251105-80-3

N-(3S-amino-2R-hydroxy-4-phenylbutyl)-N-isobutyl-4-nitro-benzenesulfonamide hydrochloride

Conditions
ConditionsYield
With trifluoroacetic acid In dichloromethane at 0 - 20℃; for 3h;100%
With trifluoroacetic acid In dichloromethane for 3h;83%
With trifluoroacetic acid In dichloromethane at 25℃; for 2h;69.2%
[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester
191226-98-9

[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester

4-amino-N-(2R,3S)(3-amino-2-hydroxy-4-phenylbutyl)-N-isobutylbenzenesulfonamide
169280-56-2

4-amino-N-(2R,3S)(3-amino-2-hydroxy-4-phenylbutyl)-N-isobutylbenzenesulfonamide

Conditions
ConditionsYield
Stage #1: [(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester With palladium 10% on activated carbon; ammonium formate; acetic acid In tetrahydrofuran at 15 - 20℃; Large scale;
Stage #2: With hydrogenchloride In tetrahydrofuran; water at 35 - 45℃; Large scale;
99.4%
Stage #1: [(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester With triethanolamine; hydrogen; palladium 10% on activated carbon In methanol at 40 - 45℃; for 2h;
Stage #2: With hydrogenchloride; water for 2h; Reflux;
Stage #3: With sodium hydroxide In water; isopropyl alcohol at 20℃; for 10h; pH=9 - 10;
95%
Multi-step reaction with 2 steps
1: 95 percent / H2 / Pd/C / ethyl acetate / 11 h / 23 °C
2: CF3COOH / CH2Cl2 / 0.67 h / 23 °C
View Scheme
[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester
191226-98-9

[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester

3-S-(N-tert-butyloxyformamido)-[2R-hydroxy-1-[(4-aminophenylsulfonyl)(2-methylpropyl)]amino]-4-phenylbutane
183004-94-6

3-S-(N-tert-butyloxyformamido)-[2R-hydroxy-1-[(4-aminophenylsulfonyl)(2-methylpropyl)]amino]-4-phenylbutane

Conditions
ConditionsYield
With hydrogen; palladium on activated charcoal In ethanol at 22 - 30℃; Product distribution / selectivity;97%
With hydrogen; palladium dihydroxide In ethyl acetate for 4h;95%
With hydrogen; palladium on activated charcoal In ethyl acetate at 23℃; for 11h;95%
oxalic acid
144-62-7

oxalic acid

[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester
191226-98-9

[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester

1-benzyl-2-hydroxy-3-([isobutyl-(4-aminobenzenesulfonyl)amino]propyl)carbamic acid tert-butyl ester oxalate

1-benzyl-2-hydroxy-3-([isobutyl-(4-aminobenzenesulfonyl)amino]propyl)carbamic acid tert-butyl ester oxalate

Conditions
ConditionsYield
Stage #1: [(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester With hydrogen In isopropyl alcohol at 25 - 35℃; under 3750.38 - 4500.45 Torr;
Stage #2: oxalic acid In toluene at 0 - 30℃; for 3h; Solvent; Reagent/catalyst;
90%
1-({[(3S)-tetrahydro-3-furanyloxy]carbonyl}oxy)-2,5-pyrrolidinedione
138499-08-8

1-({[(3S)-tetrahydro-3-furanyloxy]carbonyl}oxy)-2,5-pyrrolidinedione

[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester
191226-98-9

[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester

4-nitro-N-((2R(syn),3S)-2-hydroxy-4-phenyl-3-((S)-tetrahydrofuran-3-yloxycarbonylamino)-butyl)-N-isobutylbenzenesulfonamide
160231-69-6

4-nitro-N-((2R(syn),3S)-2-hydroxy-4-phenyl-3-((S)-tetrahydrofuran-3-yloxycarbonylamino)-butyl)-N-isobutylbenzenesulfonamide

Conditions
ConditionsYield
Stage #1: [(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester With hydrogenchloride In dichloromethane for 1.5h;
Stage #2: 1-({[(3S)-tetrahydro-3-furanyloxy]carbonyl}oxy)-2,5-pyrrolidinedione With triethylamine In dichloromethane at 20℃; for 4h; Further stages.;
85%
[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester
191226-98-9

[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester

[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]amine hydrochloride
244634-31-9

[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]amine hydrochloride

Conditions
ConditionsYield
With hydrogenchloride In 1,4-dioxane at 0 - 20℃;85%
With hydrogenchloride In ethanol80%
With hydrogenchloride In ethanol; water at 75 - 80℃; for 1h;173 g
With hydrogenchloride In ethanol; dichloromethane; water at 5 - 80℃; for 2h; Solvent;330 g
bis-(p-nitrophenyl) carbonate
5070-13-3

bis-(p-nitrophenyl) carbonate

[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester
191226-98-9

[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester

Carbonic acid (1R,2S)-2-tert-butoxycarbonylamino-1-{[isobutyl-(4-nitro-benzenesulfonyl)-amino]-methyl}-3-phenyl-propyl ester 4-nitro-phenyl ester
229495-94-7

Carbonic acid (1R,2S)-2-tert-butoxycarbonylamino-1-{[isobutyl-(4-nitro-benzenesulfonyl)-amino]-methyl}-3-phenyl-propyl ester 4-nitro-phenyl ester

Conditions
ConditionsYield
With lithium hydroxide In N,N-dimethyl-formamide at 20℃; for 2h;80%
Allyl chloroformate
2937-50-0

Allyl chloroformate

[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester
191226-98-9

[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester

Carbonic acid allyl ester (1R,2S)-2-tert-butoxycarbonylamino-1-{[isobutyl-(4-nitro-benzenesulfonyl)-amino]-methyl}-3-phenyl-propyl ester
599173-46-3

Carbonic acid allyl ester (1R,2S)-2-tert-butoxycarbonylamino-1-{[isobutyl-(4-nitro-benzenesulfonyl)-amino]-methyl}-3-phenyl-propyl ester

Conditions
ConditionsYield
With n-butyllithium In tetrahydrofuran at 0 - 20℃;36%
methyl chloroformate
79-22-1

methyl chloroformate

[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester
191226-98-9

[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester

Carbonic acid (1R,2S)-2-tert-butoxycarbonylamino-1-{[isobutyl-(4-nitro-benzenesulfonyl)-amino]-methyl}-3-phenyl-propyl ester methyl ester
599173-45-2

Carbonic acid (1R,2S)-2-tert-butoxycarbonylamino-1-{[isobutyl-(4-nitro-benzenesulfonyl)-amino]-methyl}-3-phenyl-propyl ester methyl ester

Conditions
ConditionsYield
With n-butyllithium In tetrahydrofuran at 0 - 20℃; for 3h;13%
[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester
191226-98-9

[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester

C28H39N3O6S

C28H39N3O6S

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: 95 percent / H2 / Pd/C / ethyl acetate / 11 h / 23 °C
2: CF3COOH / CH2Cl2 / 0.67 h / 23 °C
3: 75 percent / iPr2NEt / acetonitrile / 8 h / 23 °C
View Scheme
[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester
191226-98-9

[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester

2-oxo-3-phenyl-oxazolidine-5-carboxylic acid {3-[(4-amino-benzenesulfonyl)-isobutyl-amino]-1-benzyl-2-hydroxy-propyl}-amide

2-oxo-3-phenyl-oxazolidine-5-carboxylic acid {3-[(4-amino-benzenesulfonyl)-isobutyl-amino]-1-benzyl-2-hydroxy-propyl}-amide

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: TFA / CH2Cl2 / 1 h
2: Et3N / tetrahydrofuran / 20 °C
3: SnCl2*2H2O / ethyl acetate / 80 °C
View Scheme
[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester
191226-98-9

[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester

2-oxo-3-phenyl-oxazolidine-5-carboxylic acid {3-[(4-amino-benzenesulfonyl)-isobutyl-amino]-1-benzyl-2-hydroxy-propyl}-amide

2-oxo-3-phenyl-oxazolidine-5-carboxylic acid {3-[(4-amino-benzenesulfonyl)-isobutyl-amino]-1-benzyl-2-hydroxy-propyl}-amide

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: TFA / CH2Cl2 / 1 h
2: Et3N / tetrahydrofuran / 20 °C
3: SnCl2*2H2O / ethyl acetate / 80 °C
View Scheme
[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester
191226-98-9

[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester

2-oxo-3-phenyl-oxazolidine-5-carboxylic acid {1-benzyl-2-hydroxy-3-[isobutyl-(4-nitro-benzenesulfonyl)-amino]-propyl}-amide
919081-52-0

2-oxo-3-phenyl-oxazolidine-5-carboxylic acid {1-benzyl-2-hydroxy-3-[isobutyl-(4-nitro-benzenesulfonyl)-amino]-propyl}-amide

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: TFA / CH2Cl2 / 1 h
2: Et3N / tetrahydrofuran / 20 °C
View Scheme
[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester
191226-98-9

[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester

2-oxo-3-phenyl-oxazolidine-5-carboxylic acid {1-benzyl-2-hydroxy-3-[isobutyl-(4-nitro-benzenesulfonyl)-amino]-propyl}-amide
919081-33-7

2-oxo-3-phenyl-oxazolidine-5-carboxylic acid {1-benzyl-2-hydroxy-3-[isobutyl-(4-nitro-benzenesulfonyl)-amino]-propyl}-amide

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: TFA / CH2Cl2 / 1 h
2: Et3N / tetrahydrofuran / 20 °C
View Scheme
[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester
191226-98-9

[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester

3-(3-fluoro-phenyl)-2-oxo-oxazolidine-5-carboxylic acid {3-[(4-amino-benzenesulfonyl)-isobutyl-amino]-1-benzyl-2-hydroxy-propyl}-amide

3-(3-fluoro-phenyl)-2-oxo-oxazolidine-5-carboxylic acid {3-[(4-amino-benzenesulfonyl)-isobutyl-amino]-1-benzyl-2-hydroxy-propyl}-amide

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: TFA / CH2Cl2 / 1 h
2: Et3N / tetrahydrofuran / 20 °C
3: SnCl2*2H2O / ethyl acetate / 80 °C
View Scheme
[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester
191226-98-9

[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester

3-(3-fluoro-phenyl)-2-oxo-oxazolidine-5-carboxylic acid {1-benzyl-2-hydroxy-3-[isobutyl-(4-nitro-benzenesulfonyl)-amino]-propyl}-amide
919081-34-8

3-(3-fluoro-phenyl)-2-oxo-oxazolidine-5-carboxylic acid {1-benzyl-2-hydroxy-3-[isobutyl-(4-nitro-benzenesulfonyl)-amino]-propyl}-amide

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: TFA / CH2Cl2 / 1 h
2: Et3N / tetrahydrofuran / 20 °C
View Scheme
[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester
191226-98-9

[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester

3-(4-acetyl-phenyl)-2-oxo-oxazolidine-5-carboxylic acid {1-benzyl-2-hydroxy-3-[isobutyl-(4-nitro-benzenesulfonyl)-amino]-propyl}-amide
919081-38-2

3-(4-acetyl-phenyl)-2-oxo-oxazolidine-5-carboxylic acid {1-benzyl-2-hydroxy-3-[isobutyl-(4-nitro-benzenesulfonyl)-amino]-propyl}-amide

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: TFA / CH2Cl2 / 1 h
2: Et3N / tetrahydrofuran / 20 °C
View Scheme
[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester
191226-98-9

[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester

3-(3,4-difluoro-phenyl)-2-oxo-oxazolidine-5-carboxylic acid {3-[(4-amino-benzenesulfonyl)-isobutyl-amino]-1-benzyl-2-hydroxy-propyl}-amide

3-(3,4-difluoro-phenyl)-2-oxo-oxazolidine-5-carboxylic acid {3-[(4-amino-benzenesulfonyl)-isobutyl-amino]-1-benzyl-2-hydroxy-propyl}-amide

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: TFA / CH2Cl2 / 1 h
2: Et3N / tetrahydrofuran / 20 °C
3: SnCl2*2H2O / ethyl acetate / 80 °C
View Scheme
[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester
191226-98-9

[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester

3-(3-acetyl-phenyl)-2-oxo-oxazolidine-5-carboxylic acid {1-benzyl-2-hydroxy-3-[isobutyl-(4-nitro-benzenesulfonyl)-amino]-propyl}-amide
919081-37-1

3-(3-acetyl-phenyl)-2-oxo-oxazolidine-5-carboxylic acid {1-benzyl-2-hydroxy-3-[isobutyl-(4-nitro-benzenesulfonyl)-amino]-propyl}-amide

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: TFA / CH2Cl2 / 1 h
2: Et3N / tetrahydrofuran / 20 °C
View Scheme
[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester
191226-98-9

[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester

3-(3-acetyl-phenyl)-2-oxo-oxazolidine-5-carboxylic acid {3-[(4-amino-benzenesulfonyl)-isobutyl-amino]-1-benzyl-2-hydroxy-propyl}-amide

3-(3-acetyl-phenyl)-2-oxo-oxazolidine-5-carboxylic acid {3-[(4-amino-benzenesulfonyl)-isobutyl-amino]-1-benzyl-2-hydroxy-propyl}-amide

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: TFA / CH2Cl2 / 1 h
2: Et3N / tetrahydrofuran / 20 °C
3: SnCl2*2H2O / ethyl acetate / 80 °C
View Scheme
[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester
191226-98-9

[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester

3-(4-acetyl-phenyl)-2-oxo-oxazolidine-5-carboxylic acid {3-[(4-amino-benzenesulfonyl)-isobutyl-amino]-1-benzyl-2-hydroxy-propyl}-amide

3-(4-acetyl-phenyl)-2-oxo-oxazolidine-5-carboxylic acid {3-[(4-amino-benzenesulfonyl)-isobutyl-amino]-1-benzyl-2-hydroxy-propyl}-amide

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: TFA / CH2Cl2 / 1 h
2: Et3N / tetrahydrofuran / 20 °C
3: SnCl2*2H2O / ethyl acetate / 80 °C
View Scheme
[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester
191226-98-9

[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester

3-(3,4-difluoro-phenyl)-2-oxo-oxazolidine-5-carboxylic acid {1-benzyl-2-hydroxy-3-[isobutyl-(4-nitro-benzenesulfonyl)-amino]-propyl}-amide
919081-35-9

3-(3,4-difluoro-phenyl)-2-oxo-oxazolidine-5-carboxylic acid {1-benzyl-2-hydroxy-3-[isobutyl-(4-nitro-benzenesulfonyl)-amino]-propyl}-amide

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: TFA / CH2Cl2 / 1 h
2: Et3N / tetrahydrofuran / 20 °C
View Scheme
[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester
191226-98-9

[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester

2-oxo-3-(3-trifluoromethyl-phenyl)-oxazolidine-5-carboxylic acid {3-[(4-amino-benzenesulfonyl)-isobutyl-amino]-1-benzyl-2-hydroxy-propyl}-amide

2-oxo-3-(3-trifluoromethyl-phenyl)-oxazolidine-5-carboxylic acid {3-[(4-amino-benzenesulfonyl)-isobutyl-amino]-1-benzyl-2-hydroxy-propyl}-amide

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: TFA / CH2Cl2 / 1 h
2: Et3N / tetrahydrofuran / 20 °C
3: SnCl2*2H2O / ethyl acetate / 80 °C
View Scheme
[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester
191226-98-9

[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester

2-oxo-3-(3-trifluoromethyl-phenyl)-oxazolidine-5-carboxylic acid {1-benzyl-2-hydroxy-3-[isobutyl-(4-nitro-benzenesulfonyl)-amino]-propyl}-amide
919081-36-0

2-oxo-3-(3-trifluoromethyl-phenyl)-oxazolidine-5-carboxylic acid {1-benzyl-2-hydroxy-3-[isobutyl-(4-nitro-benzenesulfonyl)-amino]-propyl}-amide

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: TFA / CH2Cl2 / 1 h
2: Et3N / tetrahydrofuran / 20 °C
View Scheme
[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester
191226-98-9

[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester

(S)-N-{(1S,2R)-3-[(4-Amino-benzenesulfonyl)-isobutyl-amino]-1-benzyl-2-hydroxy-propyl}-3-methyl-2-(2-oxo-tetrahydro-pyrimidin-1-yl)-butyramide

(S)-N-{(1S,2R)-3-[(4-Amino-benzenesulfonyl)-isobutyl-amino]-1-benzyl-2-hydroxy-propyl}-3-methyl-2-(2-oxo-tetrahydro-pyrimidin-1-yl)-butyramide

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: H2 / Pd(OH)2 on carbon / ethyl acetate / 1 h
2: 0.75 g / trifluoroacetic acid / CH2Cl2 / 20 °C
3: 45 percent / 3-dimethoxyphosphoryloxy-1,2,3-benzotriazine-4(3H)-one; triethylamine / tetrahydrofuran / 4 h
View Scheme
[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester
191226-98-9

[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester

(S)-N-{(1S,2R)-3-[(4-aminobenzenesulfonyl)isobutylamino]-1-benzyl-2-hydroxypropyl}-2-[3-(2-ethylthiazol-4-ylmethyl)-2-oxo-2,3-dihydroimidazol-1-yl]-3-methylbutyramide

(S)-N-{(1S,2R)-3-[(4-aminobenzenesulfonyl)isobutylamino]-1-benzyl-2-hydroxypropyl}-2-[3-(2-ethylthiazol-4-ylmethyl)-2-oxo-2,3-dihydroimidazol-1-yl]-3-methylbutyramide

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: H2 / Pd(OH)2 on carbon / ethyl acetate / 1 h
2: 0.75 g / trifluoroacetic acid / CH2Cl2 / 20 °C
3: 51 percent / N-hydroxysuccinimide; 1,3-dicyclohexylcarbodiimide; N-methylmorpholine / CH2Cl2 / 18 h
View Scheme
[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester
191226-98-9

[(1S,2R)-3-[(4-nitrophenylsulfonyl)(2-methylpropyl)amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid tert-butyl ester

(S)-N-{(1S,2R)-3-[(4-aminobenzenesulfonyl)isobutylamino]-1-benzyl-2-hydroxypropyl}-2-[3-(2-ethylthiazol-4-ylmethyl)-2-oxoimidazolidin-1-yl]-3-methylbutyramide

(S)-N-{(1S,2R)-3-[(4-aminobenzenesulfonyl)isobutylamino]-1-benzyl-2-hydroxypropyl}-2-[3-(2-ethylthiazol-4-ylmethyl)-2-oxoimidazolidin-1-yl]-3-methylbutyramide

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: H2 / Pd(OH)2 on carbon / ethyl acetate / 1 h
2: 0.75 g / trifluoroacetic acid / CH2Cl2 / 20 °C
3: N-hydroxysuccinimide; 1,3-dicyclohexylcarbodiimide; N-methylmorpholine / CH2Cl2 / 18 h
View Scheme

191226-98-9Downstream Products

191226-98-9Relevant articles and documents

Design and evaluation of novel piperidine HIV-1 protease inhibitors with potency against DRV-resistant variants

Zhu, Mei,Zhou, Huiyu,Ma, Ling,Dong, Biao,Zhou, Jinming,Zhang, Guoning,Wang, Minghua,Wang, Juxian,Cen, Shan,Wang, Yucheng

, (2021/06/02)

A novel class of HIV-1 protease inhibitors with flexible piperidine as the P2 ligand was designed with the aim of improving extensive interactions with the active subsites. Many inhibitors exhibited good to excellent inhibitory effect on enzymatic activity and viral infectivity. In particular, inhibitor 3a with (R)-piperidine-3-carboxamide as the P2 ligand and 4-methoxybenzenesulfonamide as the P2’ ligand showed an enzyme Ki value of 29 pM and antiviral IC50 value of 0.13 nM, more than six-fold enhancement of activity compared to DRV. Furthermore, there was no significant change in potency against DRV-resistant mutations and HIV-1NL4?3 variant for 3a. Besides, inhibitor 3a exhibited potent antiviral activity against subtype C variants with low nanomole EC50 values. In addition, the molecular modeling revealed important hydrogen bonds and other favorable van der Waals interactions with the backbone atoms of the protease and provided insight for designing and optimizing more potent HIV-1 protease inhibitors.

Rational design and Structure?Activity relationship of coumarin derivatives effective on HIV-1 protease and partially on HIV-1 reverse transcriptase

Zhu, Mei,Ma, Ling,Wen, Jiajia,Dong, Biao,Wang, Yujia,Wang, Zhen,Zhou, Jinming,Zhang, Guoning,Wang, Juxian,Guo, Ying,Liang, Chen,Cen, Shan,Wang, Yucheng

, (2019/12/09)

Since dual inhibitors may yield lower toxicity and reduce the likelihood of drug resistance, as well as inhibitors of HIV-1 PR and RT constitute the core of chemotherapy for AIDS treatment, we herein designed and synthesized new coumarin derivatives characterized by various linkers that exhibited excellent potency against PR and a weak inhibition of RT. Among which, compounds 6f and 7c inhibited PR with IC50 values of 15.5 and 62.1 nM, respectively, and weakly affected also RT with IC50 values of 241.8 and 188.7 μM, respectively, showing the possibility in the future of developing dual HIV-1 PR/RT inhibitors. Creative stimulation for further research of more potent dual HIV-1 inhibitors was got according to the molecular docking studies.

Preliminary SAR and biological evaluation of potent HIV-1 protease inhibitors with pyrimidine bases as novel P2 ligands to enhance activity against DRV-resistant HIV-1 variants

Zhu, Mei,Ma, Ling,Zhou, Huiyu,Dong, Biao,Wang, Yujia,Wang, Zhen,Zhou, Jinming,Zhang, Guoning,Wang, Juxian,Liang, Chen,Cen, Shan,Wang, Yucheng

, (2019/11/28)

Introducing pyrimidine bases, the basic components of nucleic acid, to P2 ligands might enhance the potency of Human Immunodeficiency Virus-1 (HIV-1) protease inhibitors because of the carbonyl and amino groups promoting the formation of extensive hydrogen bonding interactions. In this work, we provide evidence that inhibitor 10e, with N-2-(2,4-Dioxo-3,4-dihydropyrimidin-1(2H)-yl) acetamide as the P2 ligand and a 4-methoxylphenylsulfonamide as the P2′ ligand, displayed remarkable enzyme inhibitory and antiviral activity, with the IC50 2.53 nM in vitro and a promising inhibition ratio with 68% against wild-type HIV-1 in vivo, with low cytotoxicity. This inhibitor also exhibited appreciable antiviral activity against DRV-resistant HIV-1 variants, which was of great value for further study.

Post a RFQ

Enter 15 to 2000 letters.Word count: 0 letters

Attach files(File Format: Jpeg, Jpg, Gif, Png, PDF, PPT, Zip, Rar,Word or Excel Maximum File Size: 3MB)

1

What can I do for you?
Get Best Price

Get Best Price for 191226-98-9