Trifluoroacetic acid → 2-(2-(1H-pyrazolo[3,4-b]pyridin-4-yl)thiazol-4-yl)ethanenitrile

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Reaction Steps

A solution of 2-[2-(1-tritylpyrazolo[5,4-b]pyridin-4-yl)thiazol-4-yl]acetonitrile (83 mg, 0.1716 mmol) in DCM (3 ml) was treated with triethylsilane (0.5 ml) followed by TFA (0.5 mL). After 15 minutes the mixture was concentrated in vacuo and purified by column chromatography (70:9:1 DCM/MeOH/NH4OH) to give the product as a light tan solid (6.5 mg, 16% Yield). 1H NMR (DMSO, 400 MHz) δ 4.37 (2H, s), 7.72 (1H, d), 7.94 (1H, s), 8.63 (1H, s), 8.66 (1H, d), 13.98 (1H, br s); MS (ES+) 242.00

Provenance & Evidence