上游原料
4-AminobenzonitrileEthyl 2-bromoacetate; Ethyl bromoacetateN-alpha-t-BOC-glycine; 2-[(tert-butoxycarbonyl)amino]acetic acidmethyl 4-oxo-3-piperidinecarboxylatemethyl 1-(2-ethoxy-2-oxoethyl)-4-oxo-3-piperidinecarboxylateethyl 2-(4-oxo-1-piperidinyl)acetatetert-butyl 2-(4-cyanoanilino)-2-oxoethylcarbamate2-amino-N-(4-cyanophenyl)acetamideethyl 2-(4-[(2-chloroethyl)[2-(4-cyanoanilino)-2-oxoethyl]amino]-1-piperidinyl)acetateethyl 2-(4-[[2-(4-cyanoanilino)-2-oxoethyl]amino]-1-piperidinyl)acetateethyl 2-[4-[4-(4-cyanophenyl)-3-oxo-1-piperazinyl]-1-piperidinyl]acetate
