2-乙酰基-4-戊酸乙酯

3-乙酰-2-噁唑烷酮

3-乙酰基噻唑烷-2-硫酮

ethyl 3-(2-methyl-1,3-dithiolan-2-yl)propanoate

6-methyl-2-sulfanylidene-1,3-oxazin-4-one