methyl (2R,3S)-3-benzoylamino-2-benzyloxy-3-phenylpropanethioate
methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
Conditions | Yield |
---|---|
With palladium on activated charcoal; hydrogen In methanol under 4654.46 Torr; | 100% |
With hydrogen; 1% Pd/C In methanol under 4654.46 Torr; | 100% |
With hydrogenchloride; hydrogen; palladium on activated charcoal In ethanol at 60℃; for 1h; | 78% |
With hydrogen; palladium on activated charcoal In ethanol at 60℃; | 78% |
Methyl (2R,3S)-(+)-2-hydroxy-3-azido-3-phenyl-propionate
benzoyl chloride
methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
Conditions | Yield |
---|---|
Stage #1: Methyl (2R,3S)-(+)-2-hydroxy-3-azido-3-phenyl-propionate; benzoyl chloride With dmap; triethylamine In ethyl acetate at 20℃; for 4h; Stage #2: With hydrogen; palladium on activated charcoal In methanol; ethyl acetate for 48h; Further stages.; | 92% |
Stage #1: Methyl (2R,3S)-(+)-2-hydroxy-3-azido-3-phenyl-propionate; benzoyl chloride With dmap; triethylamine In methanol; ethyl acetate at 20℃; for 7h; Stage #2: With hydrogen; palladium on activated carbon In methanol; ethyl acetate for 48h; | 92% |
Stage #1: Methyl (2R,3S)-(+)-2-hydroxy-3-azido-3-phenyl-propionate; benzoyl chloride; dmap In methanol; ethyl acetate at 20℃; for 7h; Stage #2: With hydrogen; palladium 10% on activated carbon In methanol; ethyl acetate for 48h; | 88% |
methyl (2R,3S)-2-acetoxy-3-phenyl-3-benzoylaminopropanoate
methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
Conditions | Yield |
---|---|
With sodium methylate In methanol at 20℃; for 1h; | 92% |
(4S,5R)-2,4-diphenyl-2-oxazoline-5-carboxylic acid methyl ester
methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
Conditions | Yield |
---|---|
With hydrogenchloride In methanol for 2h; Heating; | 90% |
With hydrogenchloride In methanol for 5h; Heating; | 85% |
With hydrogenchloride In methanol for 5h; Heating; | 85% |
diazomethane
(2R,3S)-N-benzoyl-3-phenylisoserine
methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
Conditions | Yield |
---|---|
In tetrahydrofuran; diethyl ether | 90% |
In methanol; diethyl ether |
(2R,3S)-(+)-methyl 3-azido-2-benzoly-3-phenylpropionate
methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
Conditions | Yield |
---|---|
With hydrogen; palladium on activated charcoal In methanol | 88% |
With hydrogen; toluene-4-sulfonic acid; palladium on activated charcoal | 76% |
With hydrogen; palladium on activated charcoal In methanol under 2585.7 Torr; for 4h; | 74% |
With hydrogen; palladium on activated charcoal In methanol at 20℃; under 760 Torr; for 48h; | 71% |
With hydrogen; palladium on activated charcoal 1.) CH3OH, 15 h, 2.) CH3OH, RT, 72 h; Yield given. Multistep reaction; |
methanol
benzoyl chloride
(2R,3S)-3-acetylamino-2-hydroxy-3-phenylpropanoic acid isopropyl ester
methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
Conditions | Yield |
---|---|
Stage #1: methanol; (2R,3S)-3-acetylamino-2-hydroxy-3-phenylpropanoic acid isopropyl ester With hydrogenchloride for 20h; Heating; Stage #2: benzoyl chloride With triethylamine In dichloromethane at 0 - 20℃; | 88% |
methanol
benzoyl chloride
(2R,3S)-3-phenylisoserine hydrochloride
methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
Conditions | Yield |
---|---|
Stage #1: benzoyl chloride; (2R,3S)-3-phenylisoserine hydrochloride With sodium hydroxide In water at 20℃; for 1h; pH=9 - 12; Stage #2: methanol Concentration; | 85.6% |
methanol
benzyl chloride
(2R,3S)-3-acetylamino-2-hydroxy-3-phenylpropanoic acid isopropyl ester
methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
Conditions | Yield |
---|---|
Stage #1: methanol; (2R,3S)-3-acetylamino-2-hydroxy-3-phenylpropanoic acid isopropyl ester With hydrogenchloride for 20h; Addition; Heating; Stage #2: benzyl chloride With triethylamine In dichloromethane at 0 - 20℃; for 2h; Substitution; Further stages.; | 85% |
methyl (2S,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
Conditions | Yield |
---|---|
With thionyl chloride In dichloromethane for 5h; Inert atmosphere; Reflux; | 85% |
Multi-step reaction with 2 steps 1.1: SOCl2 / CH2Cl2 / Heating 2.1: HCl / H2O; methanol / Heating 2.2: NaHCO3 / H2O; methanol / 50 °C View Scheme | |
Multi-step reaction with 2 steps 1: 90 percent / DEAD; PPh3 / benzene / 20 h / 20 °C 2: 90 percent / 1N aq. HCl / methanol / 2 h / Heating View Scheme | |
Multi-step reaction with 2 steps 1: 77 percent / Ph3P, diethylazodicarboxylate / tetrahydrofuran / Ambient temperature 2: 1.) aq. HCl, 2.) aq. NaHCO3 / 1) CH3OH, room temperature, 1.5 h; 2) room temperature, 16 h View Scheme | |
Multi-step reaction with 2 steps 1: 1) SOCl2 / 1) CHCl3, 45 deg C, 5 h, 2) CHCl3, reflux, 48 h 2: 80 percent / 1N HCl / methanol / 2 h / Heating View Scheme |
methanol
S-Ethyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanethioate
methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
Conditions | Yield |
---|---|
With silver trifluoroacetate Ambient temperature; | 84% |
With silver trifluoroacetate at 20℃; for 1h; Methylation; | 84% |
taxol
A
10-deacetylbaccatin III
B
methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
C
10-deacetyl-7-epi-baccatin III
Conditions | Yield |
---|---|
With lithium iodide In methanol for 10h; Ambient temperature; | A 58% B 82% C 40% |
With lithium iodide In methanol for 10h; Ambient temperature; | A 58% B 82% C 40% |
7-epipaclitaxel
A
7-epi-baccatin III
B
methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
C
10-deacetyl-7-epi-baccatin III
Conditions | Yield |
---|---|
With lithium iodide In methanol for 14h; Ambient temperature; | A 56% B 78% C 17% |
(2aR,4S,4aS,6R,9S,11S,12S,12bS)-6,12b-bis(acetyloxy)-9-({(2R,3S)-3-(benzoylamino)-3-phenyl-2-[(triethylsilyl)oxy]propanoyl}oxy)-4,11-dihydroxy-4a,8,13,13-tetramethyl-5-oxo-2a,3,4,4a,5,6,9, 10,11,12,12a,12bdodecahydro-1H-7,11-methanocyclodeca[3,4]benzo[1,2-b]oxet-12-yl benzoate
A
10-deacetylbaccatin III
B
methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
C
10-deacetyl-7-epi-baccatin III
Conditions | Yield |
---|---|
With lithium iodide In methanol Ambient temperature; 2 weeks; | A 22% B 71% C 34% |
methanol
methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
Conditions | Yield |
---|---|
With caesium carbonate In tetrahydrofuran at 20℃; for 1.5h; | 51% |
methanol
A
methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
B
methyl (2S,3R)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
Conditions | Yield |
---|---|
In methanol Title compound not separated from byproducts; | |
With sodium methylate Title compound not separated from byproducts; |
methanol
A
methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
B
3-Benzoylamino-2-hydroxy-3-phenyl-propionic acid methyl ester
C
methyl (2S,3R)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
Conditions | Yield |
---|---|
In methanol Title compound not separated from byproducts; | |
With sodium methylate Title compound not separated from byproducts; |
methanol
A
methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
B
3-Benzoylamino-2-hydroxy-3-phenyl-propionic acid methyl ester
C
methyl (2S,3R)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
Conditions | Yield |
---|---|
In methanol Title compound not separated from byproducts; | |
With sodium methylate Title compound not separated from byproducts; |
methanol
A
methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
B
3-Benzoylamino-2-hydroxy-3-phenyl-propionic acid methyl ester
Conditions | Yield |
---|---|
In methanol Title compound not separated from byproducts; | |
With sodium methylate |
methanol
A
methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
B
3-Benzoylamino-2-hydroxy-3-phenyl-propionic acid methyl ester
C
methyl (2S,3R)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
Conditions | Yield |
---|---|
With sodium methylate Title compound not separated from byproducts; |
sodium methylate
methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
Conditions | Yield |
---|---|
In methanol at 25℃; for 1h; | 79 mg |
benzoyl chloride
(2R,3S)-3-phenylisoserine methyl ester
methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
Conditions | Yield |
---|---|
Yield given; | |
With sodium hydrogencarbonate In ethyl acetate | |
With sodium hydrogencarbonate In tetrahydrofuran; water at 0℃; for 2h; | 0.123 g |
With triethylamine | |
In dichloromethane at 20℃; for 5h; Time; Cooling with ice; | 267 g |
benzoyl chloride
methyl (2R,3S)-2-hydroxy-3-phenyl-3-<(S)-1-methylbenzylamino>propanoate
methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
Conditions | Yield |
---|---|
With sodium hydroxide; hydrogen; palladium on activated charcoal 1.) MeOH, room temp., 30 h, 2.) THF, water, 0 deg C, 30 min; Yield given. Multistep reaction; |
A
benzoic acid methyl ester
B
methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
Conditions | Yield |
---|---|
With hydrogenchloride In methanol Ambient temperature; |
methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
Conditions | Yield |
---|---|
With ammonium hydroxide In methanol Ambient temperature; | |
With alkaline solution |
(R)-3-benzamido-3-phenylpropanoic acid methyl ester
A
methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
B
methyl (2S,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
Conditions | Yield |
---|---|
With (+)-(2S,8aS)-(camphorylsulfonyl)oxaziridine; lithium chloride; lithium diisopropyl amide 1) -42 deg C, 2) -100 to -78 deg C; Yield given. Multistep reaction. Yields of byproduct given; | |
With MoO5*pyridine*HMPA; potassium hexamethylsilazane 1.) toluene, THF, -78 deg C to -25 deg C; 2.) toluene, THF, -60 deg C, 3 h; Yield given. Multistep reaction. Yields of byproduct given; |
A
methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
B
(2R,3R)-(-)-2-hydroxy-3-(benzoylamino)-3-phenylpropanoic acid methyl ester
Conditions | Yield |
---|---|
With hydrogen; palladium on activated charcoal In methanol | |
With hydrogen; palladium on activated charcoal In methanol Title compound not separated from byproducts; |
(2R,3S)-3-Benzoylamino-3-phenyl-2-trimethylsilanyloxy-propionic acid methyl ester
methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
Conditions | Yield |
---|---|
With potassium fluoride In water |
syn-(+/-)-2-hydroxy-3-(benzoylamino)-3-phenylpropanoic acid methyl ester
methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
methanol
taxol
A
methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
B
baccatin III
C
7-epipaclitaxel
Conditions | Yield |
---|---|
at 58 - 116℃; Thermodynamic data; apparent activation energy Ea, other solvents, temperatures; |
methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
(2-trimethylethylsilylethoxy)methyl chloride
(2R,3S)-N-benzoyl-O-<<2-(trimethylsilyl)ethoxy>methyl>-3-phenylisoserine methyl ester
Conditions | Yield |
---|---|
With N-ethyl-N,N-diisopropylamine In dichloromethane for 40h; | 96% |
methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
methanesulfonyl chloride
(2R,3S)-3-benzoylamino-2-methanesulfonyloxy-3-phenylpropanoic acid methyl ester
Conditions | Yield |
---|---|
With triethylamine In tetrahydrofuran at 0 - 20℃; | 93% |
With triethylamine In tetrahydrofuran at 0 - 20℃; for 1.5h; Mesylation; | 86% |
p-Anisaldehyde dimethyl acetal
methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
Methyl (2R,4S,5R)-3-benzoyl-2-(p-methoxyphenyl)-4-phenyl-1,3-oxazolidine-5-carboxylate
Conditions | Yield |
---|---|
With pyridinium p-toluenesulfonate In cyclohexane; toluene | 91% |
1-methoxy-4-(methoxymethyl)benzene
methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
Methyl (2R,4S,5R)-3-benzoyl-2-(p-methoxyphenyl)-4-phenyl-1,3-oxazolidine-5-carboxylate
Conditions | Yield |
---|---|
With 2,3-dicyano-5,6-dichloro-p-benzoquinone In acetonitrile Heating; | 90% |
With 2,3-dicyano-5,6-dichloro-p-benzoquinone In acetonitrile at 60℃; | 69% |
2-Methoxypropene
methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
Methyl (4S,5R)-3-benzoyl-2,2-dimethyl-4-phenyl-1,3-oxazolidine-5-carboxylate
Conditions | Yield |
---|---|
With pyridinium p-toluenesulfonate In toluene at 85℃; | 89% |
With pyridinium p-toluenesulfonate In toluene at 80℃; for 10h; Etherification; Cyclization; | 89% |
With toluene-4-sulfonic acid at 80℃; |
methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
(4S,5S)-2,4-diphenyl-2-oxazoline-5-carboxylic acid methyl ester
Conditions | Yield |
---|---|
With dmap; trifluoromethylsulfonic anhydride In dichloromethane at -30℃; for 1h; | 85% |
With dmap; trifluoromethylsulfonic anhydride In dichloromethane at -30℃; for 1h; Cyclization; Dehydration; | 84% |
With dmap; sulfuryl dichloride In dichloromethane at 0℃; Cyclization; | 65% |
Multi-step reaction with 2 steps 1: 93 percent / Et3N / tetrahydrofuran / 0 - 20 °C 2: DBU / CHCl3 / 2 h / Heating View Scheme | |
Multi-step reaction with 2 steps 1: 86 percent / Et3N / tetrahydrofuran / 1.5 h / 0 - 20 °C 2: DBU / CHCl3 / 2 h / Heating View Scheme |
methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
chloromethyl methyl ether
(2R,3S)-N-benzoyl-O-(methoxymethyl)-3-phenylisoserine methyl ester
Conditions | Yield |
---|---|
With N-ethyl-N,N-diisopropylamine In dichloromethane for 40h; | 82% |
methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
(2R,3S)-N-benzoyl-3-phenylisoserine
Conditions | Yield |
---|---|
With potassium carbonate In methanol at 23℃; for 12h; | 80% |
p-Anisaldehyde dimethyl acetal
methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
Methyl (2S,4S,5R)-3-benzoyl-2-(p-methoxyphenyl)-4-phenyl-1,3-oxazolidine-5-carboxylate
Conditions | Yield |
---|---|
With camphor-10-sulfonic acid In toluene | 79% |
p-Anisaldehyde dimethyl acetal
methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
A
Methyl (2S,4S,5R)-3-benzoyl-2-(p-methoxyphenyl)-4-phenyl-1,3-oxazolidine-5-carboxylate
B
Methyl (2R,4S,5R)-3-benzoyl-2-(p-methoxyphenyl)-4-phenyl-1,3-oxazolidine-5-carboxylate
Conditions | Yield |
---|---|
With camphor-10-sulfonic acid In toluene at 130℃; Cycloaddition; | A 79% B 18% |
Benzyloxymethyl chloride
methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
(2R,3S)-N-benzoyl-O-<(benzyloxy)methyl>-3-phenylisoserine methyl ester
Conditions | Yield |
---|---|
With N-ethyl-N,N-diisopropylamine In dichloromethane for 40h; | 75% |
methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
1,4-dimethoxybezene
Methyl (2R,4S,5R)-3-benzoyl-2-(p-methoxyphenyl)-4-phenyl-1,3-oxazolidine-5-carboxylate
Conditions | Yield |
---|---|
With 2,3-dicyano-5,6-dichloro-p-benzoquinone In acetonitrile at 70℃; for 0.116667h; Substitution; Cyclization; | 75% |
p-Anisaldehyde dimethyl acetal
methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
Conditions | Yield |
---|---|
Stage #1: p-Anisaldehyde dimethyl acetal; methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate With pyridinium p-toluenesulfonate In toluene for 6h; Inert atmosphere; Reflux; Stage #2: With methanol; sodium hydroxide In tetrahydrofuran at 0 - 25℃; for 3h; | 75% |
methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
A
(4S,5R)-2,4-diphenyl-2-oxazoline-5-carboxylic acid methyl ester
B
3-N-benzoyl-4-phenyl-(4S,5R)-2-oxo-1,2,3-oxathiazolidine methyl ester
C
3-N-benzoyl-4-phenyl-(4S,5R)-2-oxo-1,2,3-oxathiazolidine methyl ester
Conditions | Yield |
---|---|
With thionyl chloride; triethylamine In benzene at 0 - 5℃; for 0.25h; Cyclization; | A 3% B 68% C 14% |
2,4-dimethoxybenzaldehyde dimethylacetal
methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
Conditions | Yield |
---|---|
With pyridinium p-toluenesulfonate In tetrahydrofuran at 100℃; for 1.5h; Condensation; Title compound not separated from byproducts; | A 64% B n/a |
The CAS registry number of Benzenepropanoicacid, b-(benzoylamino)-a-hydroxy-, methyl ester, (aR,bS)- is 32981-85-4. The IUPAC name is methyl (2R,3S)-3-(benzoylamino)-2-hydroxy-3-phenylpropanoate. In addition, the molecula formula is C17H17NO4 and the molecular weight is 299.32. It belongs to the classes of Chiral Chemicals and Intermediates. It is a kind of white crystal powder.
Physical properties about Benzenepropanoicacid, b-(benzoylamino)-a-hydroxy-, methyl ester, (aR,bS)- are: (1)ACD/LogP: 2.90; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 2.9; (4)ACD/LogD (pH 7.4): 2.9; (5)ACD/BCF (pH 5.5): 94.35; (6)ACD/BCF (pH 7.4): 94.34; (7)ACD/KOC (pH 5.5): 901.82; (8)ACD/KOC (pH 7.4): 901.8; (9)#H bond acceptors: 5; (10)#H bond donors: 2; (11)#Freely Rotating Bonds: 7; (12)Polar Surface Area: 55.84 Å2; (13)Index of Refraction: 1.588; (14)Molar Refractivity: 81.53 cm3; (15)Molar Volume: 242.1 cm3; (16)Polarizability: 32.32 ×10-24cm3; (17)Surface Tension: 51.7 dyne/cm; (18)Density: 1.236 g/cm3; (19)Flash Point: 280.6 °C; (20)Enthalpy of Vaporization: 86.08 kJ/mol; (21)Boiling Point: 540.3 °C at 760 mmHg; (22)Vapour Pressure: 1.66E-12 mmHg at 25°C.
You can still convert the following datas into molecular structure:
(1)SMILES: O=C(OC)[C@H](O)[C@@H](NC(=O)c1ccccc1)c2ccccc2
(2)InChI: InChI=1/C17H17NO4/c1-22-17(21)15(19)14(12-8-4-2-5-9-12)18-16(20)13-10-6-3-7-11-13/h2-11,14-15,19H,1H3,(H,18,20)/t14-,15+/m0/s1
(3)InChIKey: UYJLJICUXJPKTB-LSDHHAIUBE
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