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

乙基5-甲基-3-(4-吡啶基)-1,2-恶唑-4-羧酸酯

乙基3-(2-甲氧基苯基)-5-甲基-1,2-恶唑-4-羧酸酯

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