(3R)-N-methylpiperidine-3-carboxamide → (R)-1-(5-(4-(2-hydroxypropan-2-yl)benzamido)-2-methylpyrazolo[1,5-a]pyrimidin-7-yl)-N-methylpiperidine-3-carboxamide

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Reaction Steps

A solution of N-(7-chloro-2-methylpyrazolo[1,5-a]pyrimidin-5-yl)-4-(2-hydroxypropan-2-yl)benzamide (2F, 76 mg, 0.220 mmol) and (R)-N-methylpiperidine-3-carboxamide (62.7 mg, 0.441 mmol) in NMP (1.1 mL) was stirred at 100° C. for 3 h. After cooling to room temperature, the mixture was diluted with a few drops of DMSO and methanol, and was then purified by preparatory HPLC (30-30% MeCN/H2O gradient+0.01% TFA). Lyophilization of the combined fractions gave the titled compound as a white solid (12.5 mg, 13%); ESI-MS: m/z 451.3 (M+H)+.

Provenance & Evidence