反应详情

Following the procedure described for Preparation 8(A), 1-cyclohexyl-4H,6H-2,3,6,10b-tetraaza-benzo[e]azulen-5-one (Preparation 4(B) (640 mg, 0.226 mmol) was alkylated with 2-bromo-N-isopropyl-N-phenyl-acetamide (Preparation 1 (A)) (580 mg, 0.226 mmol). Purification by medium pressure chromatography eluting with a solvent gradient (CH2Cl2 to 4% MeOH in CH2Cl2) provided 668 mg of 2-(1-cyclohexyl-5-oxo-4,5-dihydro-2,3,6,10b-tetraaza-benzo[e]azulen-6-yl)-N-isopropyl-N-phenyl-acetamide. 1H NMR (CDCl3) δ 7.62-7.31 (m, 9), 4.93 (m, 1), 4.10 (d, 1), 3.91 (d, 1), 3.76 (d, 1), 3.45 (d, 1), 2.85 (m, 1), 2.19 (br. d, 1), 1.91 (m, 2), 1.69-1.11 (m, 7), 1.06 (m, 6): MS 458.4 (M+1).

1. customPurification by medium pressure chromatography
2. washeluting with a solvent gradient (CH2Cl2 to 4% MeOH in CH2Cl2)