4-(羟基甲基)-5-甲氧基-5-甲基-2(5H)-呋喃酮

赤藻糖

ethyl methyl 2-acethyl-3-methoxysuccinate

4-ethoxycarbonyl-5-methoxy-5-methyl-2-oxo-2,5-dihydrofuran

9-(2-methoxyethyl)anthracene