Lithium hydroxide, monohydrate → HCID 86712695, compound

Participants

Reaction Steps

LiOH.H2O (0.028 g, 0.65 mmol) was added to a solution of tert-butyl 4-(4-((4-(2-(2-methoxy-2-oxoethyl)-5-methylphenethyl)-5-(trifluoromethyl)pyrimidin-2-yl)amino)phenyl)piperidine-1-carboxylate (A88) (0.133 g, 0.217 mmol) in THF (7 mL), water (1.5 mL) and MeOH (1 mL) and the resulting mixture stirred at room temperature for 27 hours. The volatiles were removed in vacuo and the residue was partitioned between EtOAc (50 mL) and saturated aqueous NaHCO3 (50 mL). The layers were separated and the aqueous layer was extracted with EtOAc (2×50 mL). The combined organic layers were washed with brine (50 mL), dried over MgSO4 and the volatiles removed in vacuo to give the title compound A89 as a white solid (0.124 g, 95%); 1H NMR (400 MHz, d4-MeOH) δ 8.49 (s, 1H), 7.61 (d, J=8.5 Hz, 2H), 7.15 (d, J=8.5 Hz, 2H), 7.09 (d, J=7.7 Hz, 1H), 7.00 (s, 1H), 6.96 (d, J=7.7 Hz, 1H), 4.18 (d, J=13.1 Hz, 2H), 3.65 (s, 2H), 3.13-2.90 (m, 4H), 2.92-2.71 (m, 2H), 2.64 (tt, J=12.0, 3.1 Hz, 1H), 2.26 (s, 3H), 1.78 (d, J=12.5 Hz, 2H), 1.61-1.49 (m, 2H), 1.47 (s, 9H). LCMS-A: rt 6.736 min; m/z 599.3 [M+H]+.

Provenance & Evidence