3-吡咯烷-1-基-1-丁醇

ethyl 3-anthracen-9-yl-5-methyl-1,2-oxazole-4-carboxylate

(5E)-5-癸烯-2,9-二酮

乙基5-甲基-3-(4-吡啶基)-1,2-恶唑-4-羧酸酯

Acetoacetic acid, ethyl ester, semicarbazone