2-butyl-1-<2'-<(1,1'-dimethylethoxy)carbonyl><1,1'-biphenyl>-4-yl>-1,6-dihydro-4,6-dimethyl-5-pyrimidinecarboxylic acid 、
三氟乙酸 以
二氯甲烷 为溶剂,
反应 3.0h,
以57%的产率得到2-butyl-1-<<2'-carboxy<1,1'-biphenyl>-4-yl>methyl>-1,6-dihydro-4,6-dimethyl-5-pyrimidinecarboxylic acid, ethyl ester, trifluoroacetic salt