6-(4-bromobutoxy)-3-(2,4-dichlorophenyl)-2-methylquinazolin-4(3H)-one 、
(2S)-N-(4-hydroxy-5-methoxy-2-nitrobenzoyl)pyrrolidine-2-carboxaldehyde diethyl thioacetal 在
potassium carbonate 作用下,
以
丙酮 为溶剂,
以80%的产率得到(S)-1-(4-(4-(3-(2,4-dichlorophenyl)-2-methyl-4-oxo-3,4-dihydroquinazolin-6-yloxy)butoxy)-5-methoxy-2-nitrobenzoyl)pyrrolidine-2-carbaldehyde diethyl dithioacetal