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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1784627Generated: October 30, 2026

HCID 66650273, compound → 5-{5-[5-(4-Chloro-3-methyl-phenyl)-7-trifluoromethyl-pyrazolo[1,5-a]pyrimidin-3-yl]-[1,2,4]oxadiazol-3-yl}-pyridin-2-ylamine

https://huagongshe.com/reaction/1784627

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHCID 66650273HCID 66650273—
ReactantHCID 178513347HCID 178513347—
Product5-{5-[5-(4-Chloro-3-methyl-phenyl)-7-trifluoromethyl-pyrazolo[1,5-a]pyrimidin-3-yl]-[1,2,4]oxadiazol-3-yl}-pyridin-2-ylamineHCID 16067703—

Reaction Steps

The title compound was prepared from 5-(4-chloro-3-methyl-phenyl)-7-trifluoromethyl-pyrazolo[1,5-a]pyrimidine-3-carboxylic acid (example C.6) (178 mg, 0.5 mmol) and 6-amino-N-hydroxy-nicotinamidine (example B.4) (114 mg, 0.75 mmol) according to general procedure II. Obtained after flash chromatography on silica gel (ethyl acetate/heptane) and further purification by crystallization (dichloromethane/hexane) as a yellow solid (66 mg, 28%). MS (ISP) 471.9 [(M+H)+]; mp 262° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07504404B2
Source datasetuspto-grants-2009_03
ORD IDord-a206f3f80d924609a735398bedca2cc2
Source noteuspto-grants-2009_03