反应详情

To a solution of 3-{6-[(benzyl-isopropyl-carbamoyl)-methyl]-8,9-difluoro-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 (100 mg, 0.137 mmol) in dioxane (1 mL) was added HCl (4.0M in dioxane, 2 mL). The reaction was stirred at room temperature for 24 hours. The volatiles were concentrated in vacuo and the residue was dissolved in CH2Cl2. The organic solution was washed with aqueous NaHCO3 (1×), dried (Na2SO4), filtered and concentrated in vacuo. Purification by preparative chromatography eluting with 5% MeOH in CH2Cl2 provided 45 mg of N-benzyl-2-[8,9-difluoro-4-(1H-indazol-3-ylmethyl)-5-oxo-1-phenyl-4,5-dihydro-2,3,6,10b-tetraaza-benzo[e]azulen-6-yl]-N-isopropyl-acetamide. 1H NMR (CD2Cl2) δ 7.92 (m, 1H), 7.04-7.66 (m, 14H), 6.67 (s, 1H), 4.22-4.96 (m, 6H), 3.91-4.13 (m, 2H), 1.01-1.22 (m, 6H); MS 632.3 (M+1), 630.2 (M−1).

1. concentrationThe volatiles were concentrated in vacuo
2. dissolutionthe residue was dissolved in CH2Cl2
3. washThe organic solution was washed with aqueous NaHCO3 (1×)
4. dry with materialdried (Na2SO4)
5. filtrationfiltered
6. concentrationconcentrated in vacuo
7. customPurification by preparative chromatography
8. washeluting with 5% MeOH in CH2Cl2