1,4,7,10,13,21,24,27-octaoxa-18,30-diazacyclotetratriacontane-14,17,31,34-tetrone

1,4,7,10,13,16,19,25,28,31-decaoxa-22,34-diazacyclohexatriacontane-3,17,21,35-tetrone

1-(9H-芴-9-基)-3,17-二氧代-2,7,10,13,19-五氧杂-4,16-二氮杂二十一烷-21-酸

1,4,7,13-Tetraoxa-10,16-diazacyclooctadecane