(2R,3R,4S)-4-tert-Butoxycarbonylamino-2-[(2-chloro-acetyl)-(4-methoxy-benzyl)-amino]-3-hydroxy-5-phenyl-pentanoic acid ethyl ester

Base Information

• Chemical Name: (2R,3R,4S)-4-tert-Butoxycarbonylamino-2-[(2-chloro-acetyl)-(4-methoxy-benzyl)-amino]-3-hydroxy-5-phenyl-pentanoic acid ethyl ester
• CAS No.: 256419-07-5
• Molecular Formula: C₂₈H₃₇ClN₂O₇
• Molecular Weight: 549.064
• Mol file: 256419-07-5.mol

Synonyms:(2R,3R,4S)-4-tert-Butoxycarbonylamino-2-[(2-chloro-acetyl)-(4-methoxy-benzyl)-amino]-3-hydroxy-5-phenyl-pentanoic acid ethyl ester

Chemical Property of (2R,3R,4S)-4-tert-Butoxycarbonylamino-2-[(2-chloro-acetyl)-(4-methoxy-benzyl)-amino]-3-hydroxy-5-phenyl-pentanoic acid ethyl ester

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of (2R,3R,4S)-4-tert-Butoxycarbonylamino-2-[(2-chloro-acetyl)-(4-methoxy-benzyl)-amino]-3-hydroxy-5-phenyl-pentanoic acid ethyl ester

There total 1 articles about (2R,3R,4S)-4-tert-Butoxycarbonylamino-2-[(2-chloro-acetyl)-(4-methoxy-benzyl)-amino]-3-hydroxy-5-phenyl-pentanoic acid ethyl ester which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 87.0%

chloroacetyl chloride (79-04-9) + (2R,3R,4S)-4-<<(1,1-dimethylethoxy)carbonyl>amino>-3-hydroxy-2-<(4-methoxybenzyl)amino>-5-phenylpentanoic acid ethyl ester (164515-05-3) → (2R,3R,4S)-4-tert-Butoxycarbonylamino-2-[(2-chloro-acetyl)-(4-methoxy-benzyl)-amino]-3-hydroxy-5-phenyl-pentanoic acid ethyl ester (256419-07-5)

Guidance literature:

With sodium hydrogencarbonate; In dichloromethane; at 20 ℃; for 2h;

DOI:10.1007/PL00010189

Reference yield:

(2R,3R,4S)-4-tert-Butoxycarbonylamino-2-[(2-chloro-acetyl)-(4-methoxy-benzyl)-amino]-3-hydroxy-5-phenyl-pentanoic acid ethyl ester (256419-07-5) → (2R,3R,4S)-4-Amino-2-[(2-chloro-acetyl)-(4-methoxy-benzyl)-amino]-3-hydroxy-5-phenyl-pentanoic acid ethyl ester

Guidance literature:

With trifluoroacetic acid; In dichloromethane; at 20 ℃; for 3h;

DOI:10.1007/PL00010189

Reference yield:

(2R,3R,4S)-4-tert-Butoxycarbonylamino-2-[(2-chloro-acetyl)-(4-methoxy-benzyl)-amino]-3-hydroxy-5-phenyl-pentanoic acid ethyl ester (256419-07-5) → (5S,7S)-7-Benzyl-6-chloro-4-(4-methoxy-benzyl)-3-oxo-[1,4]diazepane-5-carboxylic acid

Guidance literature:

Multi-step reaction with 3 steps

1: TFA / CH₂Cl₂ / 3 h / 20 °C

2: NaHCO₃ / tetrahydrofuran / 4 h / 20 °C

3: 44 percent / aq. LiOH / ethanol / 24 h / 20 °C

With lithium hydroxide; sodium hydrogencarbonate; trifluoroacetic acid; In tetrahydrofuran; ethanol; dichloromethane; 1: deprotection / 2: Cyclization / 3: Hydrolysis;

DOI:10.1007/PL00010189

upstream raw materials:

chloroacetyl chloride

(2R,3R,4S)-4-<<(1,1-dimethylethoxy)carbonyl>amino>-3-hydroxy-2-<(4-methoxybenzyl)amino>-5-phenylpentanoic acid ethyl ester

Downstream raw materials:

(5S,7S)-7-Benzyl-6-chloro-4-(4-methoxy-benzyl)-3-oxo-[1,4]diazepane-5-carboxylic acid ethyl ester