(4S,5S)-4,5-diphenylimidazolidin-2-one

2-氨基-6-甲基苯甲酰胺

1-isocyanato-2-(2-phenylethynyl)benzene

氯甲酸邻氯苯酚酯

ditert-butyl 4-(3-tert-butoxy-3-oxo-propyl)-4-isocyanato-heptaned ioate