5-(dibromomethylidene)furan-2-one

2-methyl-2-[2-(2-methylsulfanyl-1,3-dithian-2-yl)ethyl]-1,3-dithiane

2-methyl-5,5-diethoxy-4,5-dihydrofuran

3-乙酰基丙烯酸

5-甲基-2(5H)-呋喃酮