Nω-乙酰基组胺

N-[2-(1H-imidazol-5-yl)ethyl]pyridine-2-carboxamide

5,6,7,8-四氢-5-氧代咪唑并[1,5-c]嘧啶

β-丙氨酸

1,1'-(2-异氰基-1,1-乙二基)二苯