[(2-methylpropan-2-yl)oxycarbonylamino] 4-oxopentanoate

4-[(2Z)-2-(4-carboxybutan-2-ylidene)hydrazinyl]benzoic acid

2-(dimethylamino)ethyl 4-oxopentanoate

2-methyl-1,5-diphenylpyrrole

(2,5-二甲基-1H-吲哚-3-基)乙酸