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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1245103Generated: October 31, 2026

2-Amino-5-chlorobenzoic acid → 2-(2-Amino-5-chloro-benzoylamino)-3-(4-bromo-phenyl)-propionic acid methyl ester

https://huagongshe.com/reaction/1245103

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-Amino-5-chlorobenzoic acidHCID 12476—
ReactantDiisopropylethylamineHCID 81531—
ReactantMethanaminium, N-((1H-benzotriazol-1-yloxy)(dimethylamino)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 2733084—
Reactant4-Bromo-DL-phenylalanine methyl ester hclHCID 51062456—
Product2-(2-Amino-5-chloro-benzoylamino)-3-(4-bromo-phenyl)-propionic acid methyl esterHCID 6886309560%

Reaction Steps

2-Amino-5-chloro-benzoic acid (0.702 g, 4.09 mmol) was coupled with 2-Amino-3-(4-bromo-phenyl)-propionic acid methyl ester hydrochloride (1 g, 4.09 mmol) using HBTU (1.86 g, 4.908 mmol) and diisopropylethylamine (1.32 ml, 10.22 mmol) as per general procedure A to yield the 2-(2-amino-5-chloro-benzoylamino)-3-(4-bromo-phenyl)-propionic acid methyl ester in 60% yield.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07122580B2
Source datasetuspto-grants-2006_10
ORD IDord-a7ccaa0d0ed14ecda375e316ae7306d2
Source noteuspto-grants-2006_10