(2RS,3RS,10SR,11SR)-3,10-epoxytetracyclo[10.2.2.02,11.04,9]hexadeca-4,6,8-triene

1,4-dihydro-1,4-ethenoanthracene

[1RS,2RS,3RS,10SR,11SR,12SR]-3,10-epoxytetracyclo[10.2.2.02,11.04,9]hexadeca-4,6,8,13-tetraene

1,4,4a,9a-tetrahydro-1,4-ethanoanthracene-9,10-dione

1,4,4a,9,9a,10-hexahydro-1,4-ethanoanthracene-9,10-diol