5-甲基-2-苯基-1,2-二氢吡唑-3-酮

(R)-(-)-3-羟基丁酸乙酯

ethyl 1-hydroxy-1,3-dimethylindene-2-carboxylate

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

4,5,7-三甲基香豆素