1-Hydroxybenzotriazole → HCID 59152107, compound

Participants

Reaction Steps

To a solution of (3S)-3-methyl-1-{[2-methyl-4-(trifluoromethyl)phenyl]sulfonyl}piperazine (100 mg, 0.310 mmol) (may be prepared as described in Description 27), pyrazolo[1,5-a]pyrimidine-3-carboxylic acid (55.7 mg, 0.341 mmol), HOBt (52.3 mg, 0.341 mmol) and DIPEA (0.081 ml, 0.465 mmol) in dry DMF (5 ml) at rt was added HBTU (129 mg, 0.341 mmol) and the resulting orange solution stirred at rt for 45 min. Concentration under vacuum left an orange oil. Purification by MDAP and concentration of the desired fractions gave the title compound (108 mg) as a clear film that became a white solid on trituration with ether.

Provenance & Evidence