7,13-dimethyl-7,13-diaza-1,4,10-trioxacyclopentadecane

1,8-二氨基-3,6-二氧杂辛烷

1,4,10-trioxa-7,13-diazacyclopentadecane-8,12-dione

4,7,13,16,21-pentaoxa-1,10-diaza-bicyclo[8.8.5]tricosane-2,9-dione