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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 351982Generated: October 28, 2026

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

https://huagongshe.com/reaction/351982

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydroxyamine hydrochlorideHCID 443297—
Reactant5-[3-[4-(4-Fluorophenyl)piperazin-1-yl]propyl]-2-methyl-2,3,4,5-tetrahydropyrrolo[2,3-e][1,2]thiazin-4-one 1,1-dioxideHCID 9910041—
SolventPyridineHCID 1049—
Product5-[3-[4-(4-Fluorophenyl)piperazin-1-yl]propyl]-4-hydroxyimino-2-methyl-2,3,4,5-tetrahydropyrrolo[2,3-e][1,2]thiazine 1,1-dioxideHCID 7261200083%

Reaction Conditions

Temperature60 °C

Reaction Steps

A suspension of 168 mg (0.4 mmol) of Compound 25 and 111 mg (1.6 mmol) of hydroxylamine hydrochloride in 10 ml of pyridine was stirred for 21 hours over an oil bath of 60° C. Post-treatment was conducted in a similar manner as in Example 18. The residue was purified by chromatography on a silica gel column (eluent: methanol/chloroform=1/99), whereby 144 mg of the title compound were obtained (yield: 83%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06743913B2
Source datasetuspto-grants-2004_06
ORD IDord-8322ece22d524af5b97249ee81bbaba3
Source noteuspto-grants-2004_06