2-Chloro-N-(1-hydroxy-2-methylpropan-2-yl)thiazole-5-sulfonamide → 2-[5-(4-Chloro-phenyl)-7-cyclopropyl-pyrazolo[1,5-a]pyrimidin-3-ylethynyl]-thiazole-5-sulfonic acid (2-hydroxy-1,1-dimethyl-ethyl)-amide

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The title compound was prepared from 5-(4-chloro-phenyl)-7-cyclopropyl-3-ethynyl-pyrazolo[1,5-a]pyrimidine (example C.5) (73 mg, 0.25 mmol) and 2-chloro-thiazole-5-sulfonic acid (2-hydroxy-1,1-dimethyl-ethyl)-amide (68 mg, 0.25 mmol) (example B.14) according to general procedure II. Obtained as a yellow solid (60 mg, 45%). MS (ISP) 528.0 [(M+H)+]; mp 204-207° C.

Provenance & Evidence