Lithium Hydroxide → (R)-2-(3-(5-(5-(2,4-dimethylpiperazin-1-yl)pyridin-2-ylamino)-1-methyl-6-oxo-1,6-dihydropyridin-3-yl)-5-fluoro-2-(hydroxymethyl)phenyl)-3,4,6,7,8,9-hexahydropyrazino[1,2-a]indol-1(2H)-one

Participants

Reaction Steps

Following the procedures as described for compound 108, hydrolysis of 109f (337 mg, 0.5 mmol) with lithium hydroxide gave 109 as a yellow solid (152 mg, 48%). LCMS: (M+H)+ 626. 1H NMR (500 MHz, DMSO) δ 8.57 (t, J=2.5, 1H), 8.39 (s, 1H), 7.83 (d, J=3.0, 1H), 7.31-7.36 (m, 3H), 7.23 (d, J=9.0, 1H), 7.17-7.20 (m, 1H), 6.53 (s, 1H), 4.86-4.88 (m, 1H), 4.32 (d, J=4.5, 2H), 4.09-4.20 (m, 3H), 3.87-3.91 (m, 1H), 3.66 (s, 1H), 3.59 (s, 3H), 3.04-3.08 (m, 1H), 2.90-2.94 (m, 1H), 2.57-2.65 (m, 3H), 2.47 (t, J=5.5, 2H), 2.35-2.42 (m, 2H), 2.19-2.21 (m, 1H), 2.18 (s, 3H), 1.79 (t, J=6.0, 2H), 1.66-1.69 (m, 2H), 0.91 (d, J=6.0, 3H)

Provenance & Evidence