4-chloro-3,5-dimethoxy-α-cyano-hydrocinnamaldehyde dimethyl acetal 、
胍 在
水 作用下,
反应 1.83h,
以whereby there was obtained 2,4-diamino-5-(4-chloro-3,5-dimethoxybenzyl)-pyrimidine of melting point 218° C.的产率得到2,4-Diamino-5-<4-chlor-3,5-dimethoxy-benzyl>-pyrimidin