Potassium Hydroxide → HCID 178488241, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of cis-ethyl 3-({4-[4-amino-3-(4-{[2-fluoro-4-trifluoromethylbenzoyl]amino}-3-methoxyphenyl)-1H-pyrazolo[3,4-d]pyrimidin-1-yl]cyclohexyl}amino)propanoate (0.23 g, 0.36 mmol), p-dioxane (15 mL), potassium hydroxide (0.10 g, 1.81 mmol) and water (1.5 mL) were heated at 80° C. for 3 hours. The solvents were evaporated and the residue was purified by preparative HPLC to yield cis-3-({4-[4-amino-3-(4-{[2-fluoro-4-trifluoromethylbenzoyl]amino}-3-methoxyphenyl)-1H-pyrazolo[3,4-d]pyrimidin-1-yl]cyclohexyl}amino)propanoic acid (0.11 g, 0.18 mmol) as a white solid: 1H NMR (DMSO-d6, 400 MHz). 9.91 (dd, 1H), 8.31 (d, 1H), 8.25 (s, 1H), 8.00 (t, 1H), 7.89 (d, 1H), 7.75 (d, 1H), 7.35 (s, 1H), 7.32 (s, 1H), 6.89 (br, 2H), 4.79 (m, 1H), 3.95 (s, 3H), 2.46-3.00 (m, 7H), 2.29 (m, 2H), 1.91 (m, 2H), 1.80 (m, 2H); RP-HPLC (Hitachi HPLC, Hypersil C18, 5 μm, 100A, 250×4.6 mm; 25%-100% acetonitrile—0.05M ammonium acetate over 10 min, 1 mL/min) Rt 6.06 min. MS: MH+ 616.

Provenance & Evidence