4-Piperidinemethanol → N-(7-(4-(hydroxymethyl)piperidin-1-yl)pyrazolo[1,5-a]pyrimidin-5-yl)-4-(2-hydroxypropan-2-yl)benzamide

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A solution of N-(7-chloropyrazolo[1,5-a]pyrimidin-5-yl)-4-(2-hydroxypropan-2-yl)benzamide (2D, 50 mg, 0.151 mmol) and piperidin-4-ylmethanol (35 mg, 0.302 mmol) in NMP (0.950 mL) was stirred at 85° C. overnight. After cooling to room temperature, the mixture was diluted with a few drops of DMSO and methanol, and was then purified by preparatory HPLC, 20-50% (MeCN/H2O gradient+0.01% TFA). Lyophilization of the combined fractions gave the titled compound as a white solid (55 mg, 89%). 1H NMR (400 MHz, DMSO-d6) δ ppm 1.46 (s, 8H) 1.65-1.95 (m, 3H) 2.96-3.15 (m, 2H) 3.34 (d, J=6.06 Hz, 2H) 4.39-4.56 (m, 2H) 6.35 (d, J=2.02 Hz, 1H) 7.38 (s, 1H) 7.60 (d, J=8.59 Hz, 2H) 8.00 (d, J=8.59 Hz, 2H) 8.08 (d, J=2.27 Hz, 1H) 10.87 (s, 1H). ESI-MS: m/z 410.3 (M+H)+.

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