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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 131966Generated: October 25, 2026

2-Aminothiazole → 1-(2-Cyclopentanesulfonyl-4-methyl-phenyl)-3-thiazol-2-yl-urea

https://huagongshe.com/reaction/131966

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-AminothiazoleHCID 2155—
ReactantCyclopentanethiolHCID 15510—
ReactantBenzene, 2-fluoro-4-methyl-1-nitro-HCID 67966—
ReactantHCID 66998966HCID 66998966—
ReactantHCID 66998974HCID 66998974—
Product1-(2-Cyclopentanesulfonyl-4-methyl-phenyl)-3-thiazol-2-yl-ureaHCID 5973278362%

Reaction Steps

3-Cyclopentanesulfanyl-4-nitrotoluene (0.83 g, 70%) was prepared from cyclopentyl mercaptan and 3-fluoro-4-nitrotoluene (0.77 g, 5.0 mmol) following the general procedure A. This was oxidized to 3-cyclopentanesulfonyl-4-nitrotoluene (0.84 g, 90%) following general procedure R. 3-Cyclopentanesulfonyl-4-nitrotoluene was reduced to 2-cyclopentanesulfonyl-4-methyl-aniline (0.53 g, 70%) following general procedure C. 1-(2-Cyclopentanesulfonyl-4-methyl-phenyl)-3-thiazol-2-yl-urea (225 mg, 62%) was prepared from 2-cyclopentanesulfonyl-4-methyl-aniline (239 mg, 1.0 mmol) and 2-aminothiazole (100 mg, 1.0 mmol) following the general procedure D.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07384967B2
Source datasetuspto-grants-2008_06
ORD IDord-a3b40849388c4b1abe1d6cc9acfc9eba
Source noteuspto-grants-2008_06