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

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Reaction Steps

The title compound was prepared from 3-ethynyl-7-trifluoromethyl-5-(4-trifluoromethyl-phenyl)-pyrazolo[1,5-a]pyrimidine (example C.1) (178 mg, 0.5 mmol) and 5-chloro-thiophene-2-sulfonic acid (2-hydroxy-1,1-dimethyl-ethyl)-amide (example B.24) (135 mg, 1.0 mmol) according to general procedure II. Obtained as an orange solid (43 mg, 15%). MS (ISN) 587.3 [(M−H)−]; mp 272° C.

Provenance & Evidence