ethyl 4-(3-fluorophenyl)-3-pyrazolecarboxylate 、
N-叔丁氧羰基-1,2-乙二胺 在
crude product 、
ethyl acetate n-hexane 作用下,
以yielded 4.4 g (64.6%) of t-butyl [2-(4-(3-fluorophenyl)-3-pyrazolecarboxamido)ethyl]carbamate as white crystals, melting point 175°-176°的产率得到t-butyl [2-(4-(3-fluorophenyl)-3-pyrazolecarboxamido)ethyl]carbamate