(S)-1-Boc-3-氨甲基哌啶 、
phenyl 3-ethyl-5-(1-methyl-1H-tetrazol-5-yl)phenylcarbamate 在
三乙胺 作用下,
以
DMF (N,N-dimethyl-formamide) 为溶剂,
反应 21.0h,
以78%的产率得到(S)-3-{3-[3-Ethyl-5-(1-methyl-1H-tetrazol-5-yl)-phenyl]-ureidomethyl}-piperidine-1-carboxylic Acid Tert-butyl Ester