Depicting rings in macro cycles is hard but it should be possible to improve these: c12c(\C=C/c(ccc3OC)cc3Oc4ccc(cc4)\C=C/c(cc5O1)c(CCN(C)C)cc5OC)c(CCN(C)C)c(OC)c(OC)c2OC COc1ccc2cc1-o-c1ccc(cc1)/c=c\c1cc(c(OC)cc1CCN(C)C)-o-c1c(c(CCN(C)C)c(OC)c(OC)c1OC)/c=c\2 cc3Oc4ccc(cc4)%5CC%3DC%2Fc(cc5O1)c(CCN(C)C)cc5OC)c(CCN(C)C)c(OC)c(OC)c2OC&abbr=on&hdisp=bridgehead&showtitle=false&zoom=1.6&annotate=none) %2Fc%3Dc%5Cc1cc(c(OC)cc1CCN(C)C)-o-c1c(c(CCN(C)C)c(OC)c(OC)c1OC)%2Fc%3Dc%5C2&abbr=on&hdisp=bridgehead&showtitle=false&zoom=1.6&annotate=none)