Sodium hydride → 2-(1-cyclohexyl-5-oxo-4,5-dihydro-2,3,6,10b-tetraaza-benzo[e]azulen-6-yl)-N-isopropyl-N-(6-methoxy-pyridin-3-yl)-acetamide

Participants

Reaction Conditions

Reaction Steps

To a solution of 1-cyclohexyl-4H,6H-2,3,6,10b-tetraaza-benzo[e]azulen-5-one (Preparation 4(B) (100 mg, 0.354 mmol) in DMF (10 mL) at 0° C. was added NaH (60% in oil, 15 mg, 0.372 mmol). The reaction was stirred at 0° C. for 30 minutes, was cooled to −10C and 2-bromo-N-isopropyl-N-(6-methoxy-pyridin-3-yl)-acetamide (Preparation 1(B) (107 mg, 0.372 mmol) in DMF (1 mL) was added. The reaction was stirred at room temperature for 24 h and was diluted with water. The aqueous solution was washed with EtOAc (3×). The combined organic solutions were dried (MgSO4), filtered and concentrated. The residue was purified by medium pressure chromatography eluting with a solvent gradient (1% EtOAc in hexanes to 100% EtOAc) to provide 861.8 mg of 2-(1-cyclohexyl-5-oxo-4,5-dihydro-2,3,6,10b-tetraaza-benzo[e]azulen-6-yl)-N-isopropyl-N-(6-methoxy-pyridin-3-yl)-acetamide. 1H NMR (CDCl3) δ 8.11-7.48 (m, total 3H), 7.36 (m, 3H), 6.79 (dd, 1H), 4.99 (m, 1H), 4.12 (m, 2H), 3.92 (d, 3H), 3.65 (d) and 3.82 (d, total 1H), 3.46 (dd, 1H), 2.83 (m, 1H), 2.20 (d, 1H), 2.03-1.86 (m, 3H), 1.68 (m, 2H), 1.54 (m, 2H) 1.31-1.41 (m, 2H), 1.07 (m, 6H); MS 489.4 (M+1), 487.4 (M−1).

Provenance & Evidence