1,4-dioxa-9,12-diazacyclohexadecane-5,8,13,16-tetrone

1,4,7-trioxa-12,15-diazacyclononadecane-8,11,16,19-tetrone

1,4,7,10-tetraoxa-15,18-diazacyclodocosane-11,14,19,22-tetrone

琥珀酸

N-(2-(4,5-dihydroimidazolyl)ethyl)oxazolidinone