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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 418186Generated: October 29, 2026

N-hydroxy-4-sulfamoylbenzene-1-carboximidamide → 4-{5-[7-Cyclopropyl-5-(4-trifluoromethyl-phenyl)-pyrazolo[1,5-a]pyrimidin-3-yl]-[1,2,4]oxadiazol-3-yl}-benzenesulfonamide

https://huagongshe.com/reaction/418186

Reaction equation

Participants

RoleNameHCIDCharge
ReactantN-hydroxy-4-sulfamoylbenzene-1-carboximidamideHCID 612025—
Reactant7-Cyclopropyl-5-(4-trifluoromethyl-phenyl)-pyrazolo[1,5-a]pyrimidine-3-carboxylic acidHCID 66650320—
Product4-{5-[7-Cyclopropyl-5-(4-trifluoromethyl-phenyl)-pyrazolo[1,5-a]pyrimidin-3-yl]-[1,2,4]oxadiazol-3-yl}-benzenesulfonamideHCID 16068767—

Reaction Steps

The title compound was prepared from 7-cyclopropyl-5-(4-trifluoromethyl-phenyl)-pyrazolo[1,5-a]pyrimidine-3-carboxylic acid (example C.29) (174 mg, 0.5 mmol) and N-hydroxy-4-sulfamoyl-benzamidine [CAS-No. 4476-10-2] (161 mg, 0.75 mmol) according to general procedure II. Obtained after purification by column chromatography (dichloromethane/MeOH/NH4OH) and crystallization (dichloromethane/MeOH/hexane) as a light yellow solid (191 mg, 73%). MS (EI) 526.1 [(M)+]; mp 313° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08093263B2
Source datasetuspto-grants-2012_01
ORD IDord-0cd9a684f1954ae1853d31daa970ba08
Source noteuspto-grants-2012_01