Water → (S)-2-(5-Fluoro-2-(hydroxymethyl)-3-(1-methyl-5-(5-(2-methyl-4-(oxetan-3-yl)piperazin-1-yl)pyridin-2-ylamino)-6-oxo-1,6-dihydropyridin-3-yl)-phenyl)-3,4,6,7,8,9-hexahydropyrido[3,4-b]indolizin-1(2H)-one

Participants

Reaction Conditions

Reaction Steps

To a solution of 101i (270 mg, 0.38 mmol) in propan-2-ol (8 mL), tetrahydrofuran (8 mL), and water (1.5 mL) was added LiOH (914 mg, 38 mmol). The mixture was stirred at 30° C. for 2 h. It was evaporated and the residue was purified by reverse-phase prep-HPLC to give 101 (127 mg, yield 50%) as a white solid. MS: (M+H)+ 669. 1H NMR (500 MHz, DMSO) δ 8.58 (t, J=2.5, 1H), 8.40 (s, 1H), 7.85 (d, J=3.0, 1H), 7.35-7.38 (m, 2H), 7.22-7.25 (m, 2H), 7.13-7.16 (m, 1H), 6.01 (s, 1H), 4.76 (s, 1H), 4.57-4.54 (m, 2H), 4.47 (t, J=6.0, 1H), 4.42 (t, J=6.5, 1H), 4.29 (s, 2H), 3.98-4.04 (m, 1H), 3.89-3.94 (m, 1H), 3.78-3.83 (m, 2H), 3.67 (s, 1H), 3.58 (s, 3H), 3.37-3.42 (m, 1H), 3.00-3.10 (m, 2H), 2.90-2.95 (m, 2H), 2.71 (t, J=6.0, 2H), 2.52-2.55 (m, 1H), 2.28-2.35 (m, 2H), 2.18 (t, J=8.5, 1H), 1.89-1.94 (m, 2H), 1.72-1.78 (m, 2H), 0.93 (t, J=6.5, 3H)

Provenance & Evidence