Product Name

  • Name

    Methyl (2R,3S)-3-(benzoylamino)-2-hydroxy-3-phenylpropanoate

  • EINECS 608-809-6
  • CAS No. 32981-85-4
  • Article Data55
  • CAS DataBase
  • Density 1.236 g/cm3
  • Solubility
  • Melting Point 178-183℃
  • Formula C17H17NO4
  • Boiling Point 540.3 °C at 760 mmHg
  • Molecular Weight 299.326
  • Flash Point 280.6 °C
  • Transport Information
  • Appearance White crystal
  • Safety
  • Risk Codes
  • Molecular Structure Molecular Structure of 32981-85-4 (Methyl (2R,3S)-3-(benzoylamino)-2-hydroxy-3-phenylpropanoate)
  • Hazard Symbols
  • Synonyms PACLITAXEL SIDE CHAIN 4;PACLITAXEL SIDE CHAIN NO 4;C-13 SIDE CHAIN FOR PACLITAXEL II;(2R,3S)-1-Benzoyl-2-Hydroxy-3-Aminophenylpionic Acid Ester;METHYL (2R,3S)-3-BENZAMIDO-2-HYDRO-3-PHENYLPROPIONATE;METHYL (2R,3S)-3-BENZAMIDO-2-HYDROXY-3-PHENYLPROPIONATE;N-BENZOYL-(2R,3S)-3-PHENYLISOSERINE METHYL ESTER;PACLITAXE SIDE CHIAN 4
  • PSA 75.63000
  • LogP 2.08250

Synthetic route

methyl (2R,3S)-3-benzoylamino-2-benzyloxy-3-phenylpropanethioate
145041-37-8

methyl (2R,3S)-3-benzoylamino-2-benzyloxy-3-phenylpropanethioate

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
32981-85-4

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate

Conditions
ConditionsYield
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
99458-15-8

Methyl (2R,3S)-(+)-2-hydroxy-3-azido-3-phenyl-propionate

benzoyl chloride
98-88-4

benzoyl chloride

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
32981-85-4

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate

Conditions
ConditionsYield
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
146848-86-4

methyl (2R,3S)-2-acetoxy-3-phenyl-3-benzoylaminopropanoate

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
32981-85-4

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate

Conditions
ConditionsYield
With sodium methylate In methanol at 20℃; for 1h;92%
(4S,5R)-2,4-diphenyl-2-oxazoline-5-carboxylic acid methyl ester
146848-91-1

(4S,5R)-2,4-diphenyl-2-oxazoline-5-carboxylic acid methyl ester

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
32981-85-4

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate

Conditions
ConditionsYield
With hydrogenchloride In methanol for 2h; Heating;90%
With hydrogenchloride In methanol for 5h; Heating;85%
With hydrogenchloride In methanol for 5h; Heating;85%
(2R,3S)-N-benzoyl-3-phenylisoserine
132201-33-3

(2R,3S)-N-benzoyl-3-phenylisoserine

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
32981-85-4

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate

Conditions
ConditionsYield
In tetrahydrofuran; diethyl ether90%
In methanol; diethyl ether
(2R,3S)-(+)-methyl 3-azido-2-benzoly-3-phenylpropionate
99458-16-9

(2R,3S)-(+)-methyl 3-azido-2-benzoly-3-phenylpropionate

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
32981-85-4

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate

Conditions
ConditionsYield
With hydrogen; palladium on activated charcoal In methanol88%
With hydrogen; toluene-4-sulfonic acid; palladium on activated charcoal76%
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
67-56-1

methanol

benzoyl chloride
98-88-4

benzoyl chloride

(2R,3S)-3-acetylamino-2-hydroxy-3-phenylpropanoic acid isopropyl ester
195624-97-6

(2R,3S)-3-acetylamino-2-hydroxy-3-phenylpropanoic acid isopropyl ester

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
32981-85-4

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate

Conditions
ConditionsYield
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
67-56-1

methanol

benzoyl chloride
98-88-4

benzoyl chloride

(2R,3S)-3-phenylisoserine hydrochloride
132201-32-2

(2R,3S)-3-phenylisoserine hydrochloride

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
32981-85-4

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate

Conditions
ConditionsYield
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
67-56-1

methanol

benzyl chloride
100-44-7

benzyl chloride

(2R,3S)-3-acetylamino-2-hydroxy-3-phenylpropanoic acid isopropyl ester
195624-97-6

(2R,3S)-3-acetylamino-2-hydroxy-3-phenylpropanoic acid isopropyl ester

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
32981-85-4

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate

Conditions
ConditionsYield
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
144541-45-7

methyl (2S,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
32981-85-4

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate

Conditions
ConditionsYield
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
67-56-1

methanol

S-Ethyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanethioate
222727-06-2

S-Ethyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanethioate

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
32981-85-4

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate

Conditions
ConditionsYield
With silver trifluoroacetate Ambient temperature;84%
With silver trifluoroacetate at 20℃; for 1h; Methylation;84%

A

10-deacetylbaccatin III
32981-86-5

10-deacetylbaccatin III

B

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
32981-85-4

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate

C

10-deacetyl-7-epi-baccatin III
71629-92-0

10-deacetyl-7-epi-baccatin III

Conditions
ConditionsYield
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
105454-04-4

7-epipaclitaxel

A

7-epi-baccatin III
31077-81-3

7-epi-baccatin III

B

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
32981-85-4

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate

C

10-deacetyl-7-epi-baccatin III
71629-92-0

10-deacetyl-7-epi-baccatin III

Conditions
ConditionsYield
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
148930-54-5

(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
32981-86-5

10-deacetylbaccatin III

B

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
32981-85-4

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate

C

10-deacetyl-7-epi-baccatin III
71629-92-0

10-deacetyl-7-epi-baccatin III

Conditions
ConditionsYield
With lithium iodide In methanol Ambient temperature; 2 weeks;A 22%
B 71%
C 34%
methanol
67-56-1

methanol

isobutyl (4S,5R)-3-benzoyl-4-phenyloxazolidin-2-one-5-carboxylate

isobutyl (4S,5R)-3-benzoyl-4-phenyloxazolidin-2-one-5-carboxylate

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
32981-85-4

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate

Conditions
ConditionsYield
With caesium carbonate In tetrahydrofuran at 20℃; for 1.5h;51%
methanol
67-56-1

methanol

3-Benzoylamino-2-hydroxy-3-phenyl-propionic acid (1R,2R,3R,5S)-2,6,6-trimethyl-bicyclo[3.1.1]hept-3-yl ester

3-Benzoylamino-2-hydroxy-3-phenyl-propionic acid (1R,2R,3R,5S)-2,6,6-trimethyl-bicyclo[3.1.1]hept-3-yl ester

A

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
32981-85-4

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate

B

methyl (2S,3R)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
135821-94-2

methyl (2S,3R)-3-benzoylamino-2-hydroxy-3-phenylpropanoate

Conditions
ConditionsYield
In methanol Title compound not separated from byproducts;
With sodium methylate Title compound not separated from byproducts;
methanol
67-56-1

methanol

3-Benzoylamino-2-hydroxy-3-phenyl-propionic acid (1R,2S,5R)-2-isopropyl-5-methyl-cyclohexyl ester

3-Benzoylamino-2-hydroxy-3-phenyl-propionic acid (1R,2S,5R)-2-isopropyl-5-methyl-cyclohexyl ester

A

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
32981-85-4

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate

B

3-Benzoylamino-2-hydroxy-3-phenyl-propionic acid methyl ester
503178-23-2

3-Benzoylamino-2-hydroxy-3-phenyl-propionic acid methyl ester

C

methyl (2S,3R)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
135821-94-2

methyl (2S,3R)-3-benzoylamino-2-hydroxy-3-phenylpropanoate

Conditions
ConditionsYield
In methanol Title compound not separated from byproducts;
With sodium methylate Title compound not separated from byproducts;
methanol
67-56-1

methanol

3-Benzoylamino-2-hydroxy-3-phenyl-propionic acid (1R,2S)-2-phenyl-cyclohexyl ester

3-Benzoylamino-2-hydroxy-3-phenyl-propionic acid (1R,2S)-2-phenyl-cyclohexyl ester

A

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
32981-85-4

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate

B

3-Benzoylamino-2-hydroxy-3-phenyl-propionic acid methyl ester
503178-23-2

3-Benzoylamino-2-hydroxy-3-phenyl-propionic acid methyl ester

C

methyl (2S,3R)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
135821-94-2

methyl (2S,3R)-3-benzoylamino-2-hydroxy-3-phenylpropanoate

Conditions
ConditionsYield
In methanol Title compound not separated from byproducts;
With sodium methylate Title compound not separated from byproducts;
methanol
67-56-1

methanol

3-Benzoylamino-2-hydroxy-3-phenyl-propionic acid (1S,2R)-2-(1-methyl-1-phenyl-ethyl)-cyclohexyl ester

3-Benzoylamino-2-hydroxy-3-phenyl-propionic acid (1S,2R)-2-(1-methyl-1-phenyl-ethyl)-cyclohexyl ester

A

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
32981-85-4

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate

B

3-Benzoylamino-2-hydroxy-3-phenyl-propionic acid methyl ester
503178-23-2

3-Benzoylamino-2-hydroxy-3-phenyl-propionic acid methyl ester

Conditions
ConditionsYield
In methanol Title compound not separated from byproducts;
With sodium methylate
methanol
67-56-1

methanol

3-Benzoylamino-2-hydroxy-3-phenyl-propionic acid (1R,2S,5R)-5-methyl-2-(1-methyl-1-phenyl-ethyl)-cyclohexyl ester

3-Benzoylamino-2-hydroxy-3-phenyl-propionic acid (1R,2S,5R)-5-methyl-2-(1-methyl-1-phenyl-ethyl)-cyclohexyl ester

A

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
32981-85-4

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate

B

3-Benzoylamino-2-hydroxy-3-phenyl-propionic acid methyl ester
503178-23-2

3-Benzoylamino-2-hydroxy-3-phenyl-propionic acid methyl ester

C

methyl (2S,3R)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
135821-94-2

methyl (2S,3R)-3-benzoylamino-2-hydroxy-3-phenylpropanoate

Conditions
ConditionsYield
With sodium methylate Title compound not separated from byproducts;
sodium methylate
124-41-4

sodium methylate

(+)-cis-1-benzoyl-3-acetoxy-4-phenylazetidin-2-one

(+)-cis-1-benzoyl-3-acetoxy-4-phenylazetidin-2-one

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
32981-85-4

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate

Conditions
ConditionsYield
In methanol at 25℃; for 1h;79 mg
benzoyl chloride
98-88-4

benzoyl chloride

(2R,3S)-3-phenylisoserine methyl ester
157240-36-3

(2R,3S)-3-phenylisoserine methyl ester

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
32981-85-4

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate

Conditions
ConditionsYield
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
98-88-4

benzoyl chloride

methyl (2R,3S)-2-hydroxy-3-phenyl-3-<(S)-1-methylbenzylamino>propanoate
147058-27-3

methyl (2R,3S)-2-hydroxy-3-phenyl-3-<(S)-1-methylbenzylamino>propanoate

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
32981-85-4

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate

Conditions
ConditionsYield
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;
taxol

taxol

A

benzoic acid methyl ester
93-58-3

benzoic acid methyl ester

B

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
32981-85-4

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate

C

7-epi-10-deacetyltaxol

7-epi-10-deacetyltaxol

D

10-deacetyltaxol

10-deacetyltaxol

Conditions
ConditionsYield
With hydrogenchloride In methanol Ambient temperature;
taxol

taxol

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
32981-85-4

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate

Conditions
ConditionsYield
With ammonium hydroxide In methanol Ambient temperature;
With alkaline solution
(R)-3-benzamido-3-phenylpropanoic acid methyl ester
144494-74-6

(R)-3-benzamido-3-phenylpropanoic acid methyl ester

A

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
32981-85-4

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate

B

methyl (2S,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
144541-45-7

methyl (2S,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate

Conditions
ConditionsYield
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;
Benzoic acid (R)-2-azido-1-methoxycarbonyl-2-phenyl-ethyl ester

Benzoic acid (R)-2-azido-1-methoxycarbonyl-2-phenyl-ethyl ester

A

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
32981-85-4

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate

B

(2R,3R)-(-)-2-hydroxy-3-(benzoylamino)-3-phenylpropanoic acid methyl ester
151764-53-3

(2R,3R)-(-)-2-hydroxy-3-(benzoylamino)-3-phenylpropanoic acid methyl ester

Conditions
ConditionsYield
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
157722-43-5

(2R,3S)-3-Benzoylamino-3-phenyl-2-trimethylsilanyloxy-propionic acid methyl ester

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
32981-85-4

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate

Conditions
ConditionsYield
With potassium fluoride In water
syn-(+/-)-2-hydroxy-3-(benzoylamino)-3-phenylpropanoic acid methyl ester
32981-85-4, 132074-01-2, 135821-94-2, 144541-45-7

syn-(+/-)-2-hydroxy-3-(benzoylamino)-3-phenylpropanoic acid methyl ester

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
32981-85-4

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate

methanol
67-56-1

methanol

A

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
32981-85-4

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate

B

baccatin III
27548-93-2

baccatin III

C

7-epipaclitaxel
105454-04-4

7-epipaclitaxel

Conditions
ConditionsYield
at 58 - 116℃; Thermodynamic data; apparent activation energy Ea, other solvents, temperatures;
methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
32981-85-4

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate

(2-trimethylethylsilylethoxy)methyl chloride
76513-69-4

(2-trimethylethylsilylethoxy)methyl chloride

(2R,3S)-N-benzoyl-O-<<2-(trimethylsilyl)ethoxy>methyl>-3-phenylisoserine methyl ester
99458-19-2

(2R,3S)-N-benzoyl-O-<<2-(trimethylsilyl)ethoxy>methyl>-3-phenylisoserine methyl ester

Conditions
ConditionsYield
With N-ethyl-N,N-diisopropylamine In dichloromethane for 40h;96%
methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
32981-85-4

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate

methanesulfonyl chloride
124-63-0

methanesulfonyl chloride

(2R,3S)-3-benzoylamino-2-methanesulfonyloxy-3-phenylpropanoic acid methyl ester
274681-89-9

(2R,3S)-3-benzoylamino-2-methanesulfonyloxy-3-phenylpropanoic acid methyl ester

Conditions
ConditionsYield
With triethylamine In tetrahydrofuran at 0 - 20℃;93%
With triethylamine In tetrahydrofuran at 0 - 20℃; for 1.5h; Mesylation;86%
p-Anisaldehyde dimethyl acetal
2186-92-7

p-Anisaldehyde dimethyl acetal

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
32981-85-4

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
157826-09-0

Methyl (2R,4S,5R)-3-benzoyl-2-(p-methoxyphenyl)-4-phenyl-1,3-oxazolidine-5-carboxylate

Conditions
ConditionsYield
With pyridinium p-toluenesulfonate In cyclohexane; toluene91%
1-methoxy-4-(methoxymethyl)benzene
1515-81-7

1-methoxy-4-(methoxymethyl)benzene

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
32981-85-4

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
157826-09-0

Methyl (2R,4S,5R)-3-benzoyl-2-(p-methoxyphenyl)-4-phenyl-1,3-oxazolidine-5-carboxylate

Conditions
ConditionsYield
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
116-11-0

2-Methoxypropene

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
32981-85-4

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate

Methyl (4S,5R)-3-benzoyl-2,2-dimethyl-4-phenyl-1,3-oxazolidine-5-carboxylate
202390-84-9

Methyl (4S,5R)-3-benzoyl-2,2-dimethyl-4-phenyl-1,3-oxazolidine-5-carboxylate

Conditions
ConditionsYield
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
32981-85-4

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate

(4S,5S)-2,4-diphenyl-2-oxazoline-5-carboxylic acid methyl ester
227962-26-7

(4S,5S)-2,4-diphenyl-2-oxazoline-5-carboxylic acid methyl ester

Conditions
ConditionsYield
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
32981-85-4

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate

chloromethyl methyl ether
107-30-2

chloromethyl methyl ether

(2R,3S)-N-benzoyl-O-(methoxymethyl)-3-phenylisoserine methyl ester
99458-17-0

(2R,3S)-N-benzoyl-O-(methoxymethyl)-3-phenylisoserine methyl ester

Conditions
ConditionsYield
With N-ethyl-N,N-diisopropylamine In dichloromethane for 40h;82%
methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
32981-85-4

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate

(2R,3S)-N-benzoyl-3-phenylisoserine
132201-33-3

(2R,3S)-N-benzoyl-3-phenylisoserine

Conditions
ConditionsYield
With potassium carbonate In methanol at 23℃; for 12h;80%
p-Anisaldehyde dimethyl acetal
2186-92-7

p-Anisaldehyde dimethyl acetal

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
32981-85-4

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
202390-85-0

Methyl (2S,4S,5R)-3-benzoyl-2-(p-methoxyphenyl)-4-phenyl-1,3-oxazolidine-5-carboxylate

Conditions
ConditionsYield
With camphor-10-sulfonic acid In toluene79%
p-Anisaldehyde dimethyl acetal
2186-92-7

p-Anisaldehyde dimethyl acetal

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
32981-85-4

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
202390-85-0

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
157826-09-0

Methyl (2R,4S,5R)-3-benzoyl-2-(p-methoxyphenyl)-4-phenyl-1,3-oxazolidine-5-carboxylate

Conditions
ConditionsYield
With camphor-10-sulfonic acid In toluene at 130℃; Cycloaddition;A 79%
B 18%
Benzyloxymethyl chloride
3587-60-8

Benzyloxymethyl chloride

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
32981-85-4

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate

(2R,3S)-N-benzoyl-O-<(benzyloxy)methyl>-3-phenylisoserine methyl ester
99458-18-1

(2R,3S)-N-benzoyl-O-<(benzyloxy)methyl>-3-phenylisoserine methyl ester

Conditions
ConditionsYield
With N-ethyl-N,N-diisopropylamine In dichloromethane for 40h;75%
methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
32981-85-4

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate

1,4-dimethoxybezene
150-78-7

1,4-dimethoxybezene

Methyl (2R,4S,5R)-3-benzoyl-2-(p-methoxyphenyl)-4-phenyl-1,3-oxazolidine-5-carboxylate
157826-09-0

Methyl (2R,4S,5R)-3-benzoyl-2-(p-methoxyphenyl)-4-phenyl-1,3-oxazolidine-5-carboxylate

Conditions
ConditionsYield
With 2,3-dicyano-5,6-dichloro-p-benzoquinone In acetonitrile at 70℃; for 0.116667h; Substitution; Cyclization;75%
p-Anisaldehyde dimethyl acetal
2186-92-7

p-Anisaldehyde dimethyl acetal

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
32981-85-4

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate

(4S,5R)-3-benzoyl-2-(4-methoxyphenyl)-4-phenyl-1,3-oxazolidine-5-carboxylic acid

(4S,5R)-3-benzoyl-2-(4-methoxyphenyl)-4-phenyl-1,3-oxazolidine-5-carboxylic acid

Conditions
ConditionsYield
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
32981-85-4

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate

A

(4S,5R)-2,4-diphenyl-2-oxazoline-5-carboxylic acid methyl ester
146848-91-1

(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
235432-33-4

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
235432-34-5

3-N-benzoyl-4-phenyl-(4S,5R)-2-oxo-1,2,3-oxathiazolidine methyl ester

Conditions
ConditionsYield
With thionyl chloride; triethylamine In benzene at 0 - 5℃; for 0.25h; Cyclization;A 3%
B 68%
C 14%
2,4-dimethoxybenzaldehyde dimethylacetal
91352-76-0

2,4-dimethoxybenzaldehyde dimethylacetal

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate
32981-85-4

methyl (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoate

A

methyl-(4S,5R)-N-benzoyl-2-(2,4-dimethoxyphenyl)-4-phenyl-5-oxazolidine carboxylate

methyl-(4S,5R)-N-benzoyl-2-(2,4-dimethoxyphenyl)-4-phenyl-5-oxazolidine carboxylate

B

methyl-(4S,5R)-N-benzoyl-2-(2,4-dimethoxyphenyl)-4-phenyl-5-oxazolidine carboxylate

methyl-(4S,5R)-N-benzoyl-2-(2,4-dimethoxyphenyl)-4-phenyl-5-oxazolidine carboxylate

Conditions
ConditionsYield
With pyridinium p-toluenesulfonate In tetrahydrofuran at 100℃; for 1.5h; Condensation; Title compound not separated from byproducts;A 64%
B n/a

Methyl (2R,3S)-3-(benzoylamino)-2-hydroxy-3-phenylpropanoate Specification

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

Post buying leads

About|Contact|Cas|Product Name|Molecular|Country|Encyclopedia

Message|New Cas|MSDS|Service|Advertisement|CAS DataBase|Article Data|Manufacturers | Chemical Catalog

©2008 LookChem.com,License: ICP

NO.:Zhejiang16009103

complaints:service@lookchem.com Desktop View