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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2270441Generated: October 30, 2026

Hydroxyamine hydrochloride → 5-[4-[4-(4-Fluorophenyl)piperazin-1-yl]butyl]4-hydroxyimino-2-methyl-2,3,4,5-tetrahydropyrrolo[2,3-e][1,2]thiazine 1,1-dioxide

https://huagongshe.com/reaction/2270441

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydroxyamine hydrochlorideHCID 443297—
Reactant5-[4-[4-(4-Fluorophenyl)piperazin-1-yl]butyl]-2-methyl-2,3,4,5-tetrahydropyrrolo[2,3-e][1,2]thiazin-4-one 1,1-dioxideHCID 9910796—
SolventPyridineHCID 1049—
Product5-[4-[4-(4-Fluorophenyl)piperazin-1-yl]butyl]4-hydroxyimino-2-methyl-2,3,4,5-tetrahydropyrrolo[2,3-e][1,2]thiazine 1,1-dioxideHCID 7261199988.4%

Reaction Conditions

Temperature80 °C

Reaction Steps

A suspension of 174 mg (0.4 mmol) of Compound 23 and 111 mg (1.6 mmol) of hydroxylamine hydrochloride in 10 ml of pyridine was stirred for 24 hours over an oil bath of 80° C. Post-treatment and purification were conducted in a similar manner as in Example 21, whereby 159 mg of the title compound were obtained (yield: 88%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06331623B1
Source datasetuspto-grants-2001_12
ORD IDord-e419b59dc9f14c3a8cefb7fb03bba9d7
Source noteuspto-grants-2001_12