p-hexyloxybenzamidine hydrochloride 、
2-氰基-3-乙氧基丙烯酸乙酯 、
sodium ethanolate 、
sodium hydroxide 、
2-(4-hexyloxy-phenyl)-6-oxo-1,6-dihydro-pyrimidine-5-carbonitrile 、
三氯氧磷 以
乙醇 为溶剂,
以to give 4-chloro-5-cyano-2-(4-n-hexyloxyphenyl)-pyrimidine having a melting point of 132.7°-133.1° C.的产率得到4-chloro-2-(4-hexyloxy-phenyl)-pyrimidine-5-carbonitrile