HCID 59026385, compound → HCID 178482940, compound

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{2-(3-Dimethylaminopyrrolidine-1-carbonyl)-4-[3-(2-trifluoromethoxy-phenyl)-1-(2-trimethylsilanyl-ethoxymethyl)-1H-pyrazolo[3,4-b]pyridin-5-yl]-phenyl}-carbamic acid tert-butyl ester (220 mg, 0.3 mmol) was dissolved in 1 ml of 5% v/v of 70% perchloric acid in glacial acetic acid containing 0.4 ml of mercaptoacetic acid and the resulting mixture stirred overnight at room temperature. The crude was filtered over a 0.45 μm PTFE syringe filter and directly purified by mass-triggered reverse phase HPLC to afford {2-amino-5 [3-(2-trifluoromethoxy-phenyl)-1H-pyrazolo[3,4-b]pyridin-5-yl]-phenyl}-(3-dimethylamino-pyrrolidin-1-yl)-methanone. 1H NMR (500 MHz, DMSO-d6) δ 1.65 (m, 1H), 1.92-2.02 (m, 7H), 3.15-3.68 (m, 5H), 5.45 (s, 2H), 6.78 (d, 1H), 7.45 (m, 2H), 7.50-7.58 (m, 3H), 7.88 (d, 1H), 8.18 (s, 1H), 8.66 (s, 1H). MS: m/z 511.2 (M+H+).

Provenance & Evidence