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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1869012Generated: October 31, 2026

Water → HCID 23078886, compound

https://huagongshe.com/reaction/1869012

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantPyridineHCID 1049—
ReactantAcetic AnhydrideHCID 7918—
ReactantHCID 23078879HCID 23078879—
SolventDichloromethaneHCID 6344—
ProductHCID 23078886HCID 23078886—

Reaction Steps

To a solution of 4-(2-hydroxyethyl)-1-[3-(2-nitrobenzenesufonylamino)propionyl]piperazine (1.15 g) and pyridine (1.47 mL) in dichloromethane (10 mL) was added acetic anhydride (1.72 mL), and the mixture was stirred at room temperature overnight. The reaction mixture was poured into water, and the resulting mixture was extracted with ethyl acetate. The extract was washed with water and brine, and dried over anhydrous sodium sulfate. The solvent was removed under reduced pressure, and the residue was purified by column chromatography on silica gel (eluent: n-hexane/ethyl acetate=1/2-dichloromethane/methanol=10/1) to give the title compound (0.38 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07635684B2
Source datasetuspto-grants-2009_12
ORD IDord-db75185b2d85446e8b407900471015d2
Source noteuspto-grants-2009_12