Triethylamine → 3-(8-(2,6-difluorophenyl)-2-{[2-(dimethylamino)ethyl]amino}-7-oxo-5,6,7,8-tetrahydropyrimido[4,5-d]pyrimidin-4-yl)-N-(2,2-dimethylpropyl)-4-methylbenzamide

Participants

Reaction Steps

To the solution of 3-(8-(2,6-difluorophenyl)-2-{[2-(dimethylamino)ethyl]-amino}-7-oxo-5,6,7,8-tetrahydropyrimido[4,5-d]pyrimidin-4-yl)-4-methylbenzoic acid (30 mg, 0.062 mmol) in dichloromethane (2.0 mL) and DMF (0.5 mL) were added (2,2-dimethylpropyl)amine (10.9 μL, 0.093 mmol), HBTU (25.6 mg, 0.068 mmol) and triethylamine (35.0 μL, 0.25 mmol). The reaction mixture was stirred at room temperature for 16 hours then was applied to HPLC to afford the titled compound 14.9 mg (44%). LC-MS m/z 552 (M+H)+; 1H-NMR (MeOD) 0.99 (s, 9H), 2.33 (s, 3H), 2.76 (s, 6H), 3.15 (s, 2H), 3.24 (s, 2H), 3.54 (m, 2H), 4.16 (m, 2H), 7.18 (m, 2H), 7.51 (m, 2H), 7.72 (s, 1H), 7.89 (m, 1H).

Provenance & Evidence