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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 11698Generated: October 29, 2026

3-(5-Chloro-2-{2-[4-(4-fluoro-benzyl)-(2R,5S)-2,5-dimethyl-piperazin-1-yl]-2-oxo-ethoxy}-phenyl)-2-nitro-propionic Acid Ethyl Ester → 2-Amino-3-(5-chloro-2-{2-[4-(4-fluoro-benzyl)-(2R,5S)-2,5-dimethyl-piperazin-1-yl]-2-oxo-ethoxy}-phenyl)-propionic Acid Ethyl Ester

https://huagongshe.com/reaction/11698

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3-(5-Chloro-2-{2-[4-(4-fluoro-benzyl)-(2R,5S)-2,5-dimethyl-piperazin-1-yl]-2-oxo-ethoxy}-phenyl)-2-nitro-propionic Acid Ethyl EsterHCID 86591167—
CatalystZincHCID 23994—
SolventAcetic AcidHCID 176—
Product2-Amino-3-(5-chloro-2-{2-[4-(4-fluoro-benzyl)-(2R,5S)-2,5-dimethyl-piperazin-1-yl]-2-oxo-ethoxy}-phenyl)-propionic Acid Ethyl EsterHCID 69655435100.3%

Reaction Conditions

Temperature60 °C

Reaction Steps

To a solution of 3-(5-chloro-2-{2-[4-(4-fluoro-benzyl)-(2R,5S)-2,5-dimethyl-piperazin-1-yl]-2-oxo-ethoxy}-phenyl)-2-nitro-propionic acid ethyl ester (0.035 g, 0.065 mmol) in acetic acid (1 ml) was added zinc dust (0.085 g, 1.3 mmol). After 2 hours of heating at 60° C. the reaction was filtered and concentrated in vacuo. Chromatography on silica gel gave the title compound (0.033 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07098212B2
Source datasetuspto-grants-2006_08
ORD IDord-9b452b8d2d0c49e9874248b66a46fa7e
Source noteuspto-grants-2006_08