5,5-二苯基四氢呋喃-2-酮

3-methyl-5,5-diphenyltetrahydrofuran-2(3H)-one

3-环丙基-1-(2-氟-4-碘苯基)-5-羟基-6,8-二甲基-1H,8H-吡啶并[2,3-d]嘧啶-2,4,7-三酮

2-hydroxy-4-methyl-2H-furan-5-one

3-(4-羟基-3-甲氧基苯基)-2-甲基丙烯酸