Acetate → 2-(4-(5-(5-(4-(2-Hydroxy-2-methylpropyl)piperazin-1-yl)pyridin-2-ylamino)-1-methyl-6-oxo-1,6-dihydropyridin-3-yl)-3-(hydroxymethyl)pyridin-2-yl)-3,4,6,7,8,9-hexahydropyrazino[1,2-a]indol-1(2H)-one

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Reaction Steps

Following the procedures as described for the preparation of 118, acetate hydrolysis of 120b (70 mg, 0.1 mmol) with LiOH.H2O in iPrOH/THF (1:1) and H2O, gave 120 (27 mg, 42%) as a gray solid. LCMS: [M+H]+ 653. 1H NMR (500 MHz, DMSO-d6) δ 8.61 (d, J=3, 1H), 8.50 (d, J=5, 1H), 8.41 (s, 1H), 7.83 (d, J=3, 1H), 7.46 (d, J=2, 1H), 7.36 (m, 2H), 7.24 (d, J=9, 1H), 6.58 (s, 1H), 4.95 (m, 1H), 4.44 (m, 2H), 4.24 (m, 2H), 4.13 (m, 2H), 3.87-3.88 (m, 1H), 3.60 (s, 3H), 3.03-3.05 (m, 4H), 2.64-2.66 (m, 5H), 2.61-2.63 (m, 1H), 2.49-2.51 (m, 2H), 2.24 (s, 2H), 1.70-1.71 (m, 4H), 1.10 (s, 6H).

Provenance & Evidence