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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 351981Generated: October 28, 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/351981

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 numberUS06743913B2
Source datasetuspto-grants-2004_06
ORD IDord-016961760d41441a8fe63bbae69f9511
Source noteuspto-grants-2004_06