Trifluoroacetic acid → HCID 86608110, compound

Participants

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 4-(5-bromo-thiophene-2-sulfonyl)-piperazine-1-carboxylic acid tert-butyl ester (example B.52) (206 mg, 0.5 mmol) according to general procedure II and subsequent cleavage of the protecting group with TFA in dichloromethane at 0° C. Obtained as an orange solid (145 mg, 50%). MS (ISP) 586.1 [(M+H)+]; mp 223° C.

Provenance & Evidence