4-(1,4,7,10-tetraoxa-13-azacyclopentadec-13-yl)benzaldehyde

2-methyl-1,3,6,9-tetraoxacycloundecane

2,13-dimethyl-22-crown-8

3,6,9,12-tetraoxa-18-azabicyclo[12.3.1]octadeca-1(18),14,16-triene-2,13-dione

3,6,9,12,20,23,26,29-octaoxa-35,36-diazatricyclo[28.3.1.114,18]hexatriconta-1(35),14(36),15,17,31,33-hexaene-2,13,19,30-tetraone