反应详情

The product of Step A, 3-(6-{[isopropyl-(6-methoxy-pyridin-3-yl)-carbamoyl]-methyl}-5-oxo-1-phenyl-5,6-dihydro-4H-2,3,6,10b-tetraaza-benzo[e]azulen-4-ylmethyl)-indazole-1-carboxylic acid tert-butyl ester, was dissolved in CH2Cl2 (8 mL) and TFA (2 mL) was added. The reaction was stirred at room temperature for 24 hours and was concentrated in vacuo. Purification by medium pressure chromatography eluting with a solvent gradient (1% MeOH in EtOAc to 5% MeOH in EtOAc) provided 172 mg of 2-[4-(1H-indazol-3-ylmethyl)-5-oxo-1-phenyl-4,5-dihydro-2,3,6,10b-tetraaza-benzo[e]azulen-6-yl]-N-isopropyl-N-(6-methoxy-pyridin-3-yl)-acetamide. 1H NMR (CD3OD) δ 8.04 (d, 1H), 7.88 (d, 1H), 7.64 (m, 2H), 7.56 (d, 2H), 7.49 (t, 2H), 7.39 (q, 3H), 7.31 (t, 1H), 7.19 (t, 1H), 7.11 (t, 1H), 6.95 (d, 1H), 6.86 (m, 1H), 4.72 (m, 1H), 4.59 (m, 1H), 4.41 (t, 1H), 3.99-4.12 (m, 2H), 3.90 (m, 4H), 0.95 (m, 6H); MS 613.8 (M+1), 611.5 (m−1).

1. concentrationwas concentrated in vacuo
2. customPurification by medium pressure chromatography
3. washeluting with a solvent gradient (1% MeOH in EtOAc to 5% MeOH in EtOAc)