2,6-Dimethylaniline → HCID 57663002, compound

Participants

Reaction Conditions

Reaction Steps

To a stirred mixture of 4-(4-cyclohexylquinazolin-2-ylamino)benzoic acid (300 mg, 0.86 mmol), HATU (327 mg, 0.86 mmol) and Hunig's base (555 μL, 4.3 mmol) in dimethylformamide (1 mL) was added 2,6-dimethylaniline (620 mg, 5.12 mmol) and the reaction was heated to 50° C. overnight. The mixture was cooled to rt, diluted with water and extracted with ethyl acetate. The combined organic extracts were washed with 1 N sodium bicarbonate and a 5% aqueous solution of lithium chloride, then was extracted with 1 N hydrochloric acid. The combined acidic washes were neutralized with 1 N sodium hydroxide and extracted with dichloromethane. These combined organic extracts were dried over sodium sulfate, filtered and concentrated on a rotary evaporator. The residue obtained was purified by recrystallization from methanol to give 4-[(4-cyclohexylquinazolin-2-yl)amino]-N-(2,6-dimethylphenyl)benzamide as a white solid (99.8 mg, 27%). 1H NMR (400 MHz, CDCl3): δ 8.06-7.94 (m, 5H), 7.82-7.71 (m, 2H), 7.58-7.49 (br s, 1H), 7.39-7.33 (m, 2H), 7.16-7.12 (m, 3H), 3.53-3.44 (m, 1H), 2.65-2.59 (s, 5H), 2.31 (s, 6H), 2.04-1.91 (m, 4H), 1.89-1.70 (m, 3H), 1.60-1.31 (m, 3H). MS (EI) for C29H30N4O: 451.0 (MH+).

Provenance & Evidence