Methylamine → 4-(4-Cyano-2-methylphenyl)-N-methyl-2,5-dioxo-1-(3-(trifluoromethyl)phenyl)-1,2,5,6,7,8-hexahydroquinazoline-3(4H)-carboxamide

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Reaction Steps

N,N-Diisopropylethylamine (88 μL, 0.51 mmol), 4-dimethylaminopyridine (48 mg, 0.39 mmol) and 4-nitrophenyl chloroformate (78 mg, 0.39 mmol) is added to a solution of 4-(2,5-dioxo-1-(3-(trifluoromethyl)phenyl)-1,2,3,4,5,6,7,8-octahydroquinazolin-4-yl)-3-methylbenzonitrile (example 55, 55 mg, 0.13 mmol) in acetonitrile (1.5 mL), and the mixture is stirred at room temperature over night. Methylamine (2 M in tetrahydrofuran, 97 μL, 0.19 mmol) is added, and the mixture is stirred at room temperature over night and purified by preparative HPLC (Waters Xbridge™-C18, gradient of acetonitrile in water, 0.1% TFA). Yield: 35 mg; ESI mass spectrum [M+H]+=483; Retention time HPLC: 0.74 min (X012_S01).

Provenance & Evidence