1,3,7,9,13,15-hexaselenacyclooctadecane

1,3,7,9,13,15,19,21-octaazaquinquecyclo[19.3.1.13,7.19,13.115,19]octacosane

cyclotetracosa-1,3,7,9,13,15,19,21-octayne

(1Z,3E,7Z,9E,13Z,15E)-1,3,7,9,13,15-Cyclooctadecahexene-5,11,17-triyne

(2R)-2-[(1E,3Z,5R,7E,9E,11R,13S,14R,15S)-3-ethyl-14-hydroxy-5,9,11,13,15-pentamethyl-12-oxoheptadeca-1,3,7,9-tetraenyl]-2,3-dihydropyran-6-one

6-[(1E,3E,7E,9E,17E)-14,19-dihydroxy-3,5,9,11,13,15,17-heptamethyl-12- oxo-nonadeca-1,3,7,9,17-pentaenyl]-5-methyl-5,6-dihydropyran-2-one

[10.10](2,5)thiophenophan-1,3,7,9,15,17,21,23-octayne