ethyl 9,10-dimethoxy-9,10-dihydro-9,10-ethanoanthracene-11-carboxylate

甲醇

蒽

9,10-dimethoxy-1,4,5,8-tetrahydro-1,4:5,8-diepoxyanthracene

trans-9,10-dihydro-9,10-dimethoxyanthracene