6-(1-甲基乙基)-3(2H)-哒嗪酮

4-hydroxy-5,5,6-trimethyl-4,5-dihydro-2H-pyridazin-3-one

N-(4-chlorophenyl)-N-hydroxyformamide

2-(butoxycarbonylamino)-2-hydroxyacetic acid

(E)-2-amino-4-phenylbut-3-enoic acid