1-哌啶酰氯

5-(4-chlorophenyl)-1,3,4-oxathiazol-2-one

5-Ethoxy-3H-1,2,4-dithiazol-3-one

3,5-diethoxy-1,2,4-thiadiazole

5-(furan-2-yl)-1,3,4-oxathiazol-2-one