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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 655568Generated: November 1, 2026

(S)-2-amino-4-benzyloxy-butyric acid methyl ester hydrochloride → (S)-4-Benzyloxy-2-{(R)-2-[benzyloxycarbonyl-(2-tert-butoxycarbonyl-ethyl)-amino]-propylamino}-butyric acid methyl ester

https://huagongshe.com/reaction/655568

Reaction equation

Participants

RoleNameHCIDCharge
Reactant(S)-2-amino-4-benzyloxy-butyric acid methyl ester hydrochlorideHCID 66782906—
Reactant3-[benzyloxycarbonyl-((R)-1-methyl-2-oxo-ethyl)-amino]-propionic acid tert-butyl esterHCID 86638115—
Product(S)-4-Benzyloxy-2-{(R)-2-[benzyloxycarbonyl-(2-tert-butoxycarbonyl-ethyl)-amino]-propylamino}-butyric acid methyl esterHCID 67079859—

Reaction Steps

In analogy to the procedure described in example 58D, 3-[benzyloxycarbonyl-((R)-1-methyl-2-oxo-ethyl)-amino]-propionic acid tert-butyl ester and (S)-2-amino-4-benzyloxy-butyric acid methyl ester hydrochloride (intermediate 7) gave the title compound in quantitative yield as yellow oil. MS: 543.5 (MH+).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08071586B2
Source datasetuspto-grants-2011_12
ORD IDord-42332118bb1a4392a3bc84606a9cd7f8
Source noteuspto-grants-2011_12