N-(2-氰基乙基)-邻苯二甲酰亚胺

6,6'-bis(β-alanylamino)-2,2'-bipyridine

N-[(6-methoxy-2-oxo-2H-benzo[h]benzopyran-4-yl)methyloxycarbonyl]-L-β-alanine methyl ester

氨气