7-甲基咪唑并[1,2-a]嘧啶

4-methoxyhept-6-en-2-one

2-bromo-3-oxobutanal

benzyl 5-methyl-1H-pyrrole-2-carboxylate

2-[2-methyl-1-(3-oxobut-1-enyl)indol-3-yl]acetonitrile