1,12-bis-(4-methylphenyl)sulfonyl-1,12-diazacyclodocosane

1,10-bis(10-bromodecoxy)decane

1-(10-bromodecoxy)-4-nitrobenzene

1,1,12,12,23,23,34,34-octaphenyl-1,12,23,34-tetrastannacyclotetratetracontane

1,1,12,12-tetraphenyl-1,12-distannacyclodocosane