5-(4-methoxyphenyl)-6-methyl-2-oxo-1H-pyridine-3-carbonitrile

2,5-dioxo-1,6,7,8-tetrahydroquinoline-3-carboxamide

ethyl 3-(3-amino-5-anilino-4-carbamoylthiophen-2-yl)-3-oxopropanoate

2-amino-5,7-dihydro-4H-thieno[2,3-c]pyran-3-carboxamide

4-甲基-2,6-二氧代-4-苯基-3,5-哌啶二甲腈