上游原料
4-formylbenzonitrile; 4-Cyanobenzaldehyde4-[(hydroxyimino)methyl]benzonitrilemethyl 2-(3-[4-[amino(imino)methyl]phenyl]-4,5-dihydro-5-isoxazolyl)acetate2-[3-(4-[amino[(tert-butoxycarbonyl)imino]methyl]phenyl)-4,5-dihydro-5-isoxazolyl]acetic acid3-butenoic acid2-[3-(4-cyanophenyl)-4,5-dihydro-5-isoxazolyl]acetic acidethyl 2-(2-piperidinyl)acetateethyl 2-(1-[2-[3-(4-[amino[(tert-butoxycarbonyl)imino]methyl]phenyl)-4,5-dihydro-5-isoxazolyl]acetyl]-2-piperidinyl)acetate
