5,6-bis(trimethylsilyl)benzo[c]furan

2,3-dicyano-6,7-bis(trimethylsilyl)naphthalene

7,8-dicyano-1,4-epoxy-2,3-bis(trimethylsilyl)-1,4-dihydroanthracene

(5aRS,6SR,11RS,11aSR)-tetrahydro-6,11-epoxy-8,9-bis(trimethylsilyl)tetracene-5,12-dione

(5aRS,6SR,13aRS,14SR)-tetrahydro-5,14-epoxy-2,3-bis(trimethylsilyl)pentacene-6,13-dione