1: T=180°C; 12 h; 2: With water

potassium carbonate in N,N-dimethyl-formamide T=20°C;

1: 6-bromo-3,4-dihydroquinazolin-4-one With sodium hydride in tetrahydrofuran 0.5 h; Inert atmosphere; 2: methyl p-nosylate T=20°C; Cooling with ice;