methyl 2,5-dimethyl-4-(2-nitrophenyl)furan-3-carboxylate

1,3-dimethyl-5H-furo[3,4-c]quinolin-4-one

pentane-2,3,4-trione

Methyl[2,5-dimethyl-4-(2-nitrophenyl)-3-pyrrolyl]keton

Methyl 2,5-dimethyl-4-(2-nitrophenyl)-1H-pyrrole-3-carboxylate