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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 480199Generated: October 29, 2026

Hydrazine → (2R,5S)-2-Amino-ethanesulfonic acid 5-chloro-2-{2-[4-(4-fluoro-benzyl)-2,5-dimethyl-piperazin-1-yl]-2-oxo-ethoxy}-benzylamide

https://huagongshe.com/reaction/480199

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrazineHCID 9321—
ReactantHCID 69911897HCID 69911897—
SolventEthanolHCID 702—
Product(2R,5S)-2-Amino-ethanesulfonic acid 5-chloro-2-{2-[4-(4-fluoro-benzyl)-2,5-dimethyl-piperazin-1-yl]-2-oxo-ethoxy}-benzylamideHCID 1211211596%

Reaction Steps

To a solution of (2R,5S)-2-(1,3-Dioxo-1,3-dihydro-isoindol-2-yl)-ethanesulfonic acid 5-chloro-2-{2-[4-(4-fluoro-benzyl)-2,5-dimethyl-piperazin-1-yl]-2-oxo-ethoxy}-benzylamide (0.073 g, 0.111 mmol) in EtOH (1 mL) was added hydrazine (35% aq. 0.25 mL, 2.73 mmol) and the solution was stirred overnight at ambient temperature. The reaction was filtered through a glass frit and washed with EtOH. The filtrate was concentrated in vacuo to give the title compound (0.056 g, 96%)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06649611B2
Source datasetuspto-grants-2003_11
ORD IDord-b002670f7ddb4562a4216374650a1d6f
Source noteuspto-grants-2003_11