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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1366302Generated: November 1, 2026

4-Methylpiperazine-1-carbothioamide → 4-[5-Fluoro-2-(4-methyl-piperazin-1-yl)thiazol-4-yl]-benzoic acid methyl ester

https://huagongshe.com/reaction/1366302

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-Methylpiperazine-1-carbothioamideHCID 2113086—
Reactant4-(2-Bromo-2-fluoro-acetyl)-benzoic acid methyl esterHCID 57551970—
SolventEthanolHCID 702—
Product4-[5-Fluoro-2-(4-methyl-piperazin-1-yl)thiazol-4-yl]-benzoic acid methyl esterHCID 5755194174%

Reaction Steps

4-(2-Bromo-2-fluoro-acetyl)-benzoic acid methyl ester (1.18 mmol) and 4-methyl-piperazine-1-carbothioic acid amide (1.18 mmol) were dissolved in ethanol (10 mL). The reaction was heated at reflux for 2 h. The reaction was cooled to RT causing the product to precipitate. The product was collected by filtration and washed with cold ethanol. The product was given an aqueous sodium bicarbonate work up to yield the title compound as a colourless oil (74%). MS (ES+) 337 (M+H, 100%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07893067B2
Source datasetuspto-grants-2011_02
ORD IDord-3dcb4c4511a44e1195376256fbdb0135
Source noteuspto-grants-2011_02