methyl 3-phenylmethoxyprop-2-enoate

methyl 3-(2-oxopyrrolidin-1-yl)prop-2-enoate

3-(4-methylphenyl)-4-methoxycarbonylisoxazole

methyl 3-(4-methylphenyl)-1,2-oxazole-5-carboxylate

5,7-dimethylchromen-2-one