4-{N-butyl-N-[(2'[N-triphenylmethyl-1H-tetrazol-5-yl]biphenyl-4-yl)methyl]amino}pyrimidine-5-carboxylic acid 、
1-chloroethyl (1-methylpiperidin-4-yl)carbonate 在
sodium iodide 、
potassium carbonate 作用下,
以
N-甲基乙酰胺 为溶剂,
以34%的产率得到1-(1-Methylpiperidin-4-ylcarbonyloxy)ethyl 4-{N-butyl-N-[(2'-[N-triphenylmethyl-1H-tetrazol-5-yl]biphenyl-4-yl)methyl]amino}pyrimidine-5-carboxylate