8-methoxy-5-tert-butyl<2.2>-metacyclophane

6-tert-butyl-9-methoxy-2,11-dithia[3.3]metacyclophane

6-tert-butyl-9-methoxy-2,11-dithia<3.3>metacyclophane S,S,S',S'-tetraoxide

2,7-di-tert-butyl-trans-10b,10c-dimethyl-10b,10c-dihydropyrene

(10bR,10cR)-2,7-Di-tert-butyl-10b,10c-dimethyl-4-propyl-10b,10c-dihydro-pyrene