1,3,8-trimethylpyrido<2,3-d>pyrimidine-2,4,7-(1H,3H,8H)-trione

1,3-dimethyl-5-(Z)-(2-methoxycarbonylvinyl)-6-methylaminouracil

1,3,5,7-Cyclooctatetraen-1,3,6,8-tetracarbonsaeure-tetramethylester

4-(1H-吲哚-3-基)丁烷-2-酮