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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1022521Generated: October 31, 2026

Trifluoroacetic acid → tert-Butyl (2S)-2-[(1R,2R)-1-methoxy-2-methyl-3-{[(2S)-1-(1,2-oxazinan-2-yl)-1-oxo-3,3-diphenylpropan-2-yl]amino}-3-oxopropyl]pyrrolidine-1-carboxylate

https://huagongshe.com/reaction/1022521

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
ReactantBoc-L-3,3-DiphenylalanineHCID 2761487—
Reactant(3R,4S,5S)-tert-butyl 4-((S)-2-(((benzyloxy)carbonyl)amino)-N,3-dimethylbutanamido)-3-methoxy-5-methylheptanoateHCID 10529182—
Reactanttert-Butyl[(2S)-1-(1,2-oxazinan-2-yl)-1-oxo-3-phenylpropan-2-yl]carbamateHCID 89181604—
Producttert-Butyl (2S)-2-[(1R,2R)-1-methoxy-2-methyl-3-{[(2S)-1-(1,2-oxazinan-2-yl)-1-oxo-3,3-diphenylpropan-2-yl]amino}-3-oxopropyl]pyrrolidine-1-carboxylateHCID 89642541—

Reaction Steps

The title compound was prepared analogously to the synthesis of Intermediates 5 and 6 in three steps by coupling commercially available N-(tert-butoxycarbonyl)-β-phenyl-L-phenylalanine with 1,2-oxazinane hydrochloride (Starting Material 5), subsequent deprotection with trifluoroacetic acid and another coupling with Starting Material 1. The end product was purified by preparative HPLC.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08722629B2
Source datasetuspto-grants-2014_05
ORD IDord-e9d9148abc214fbd923cf0ea36947272
Source noteuspto-grants-2014_05