ethyl 2-(1-hydroxyethyl)but-3-enoate

3-anilino-1,3-diphenylpropan-1-one

11-(ethylamino)undecanoic acid

N-乙基-2-吡嗪甲酰胺

N-乙基-5,6-二甲基-吡嗪甲酰胺