(6aS,12bR)-4-(benzyloxy)-10,10-dimethyl-7,12b-dihydro-[1,3]dioxolo[4',5':5,6]indeno[2,1-c]chromen-6a(6H)-ol

(6aS,12bR)-10,10-dimethyl-7,12b-dihydro-[1,3]dioxolo[4',5':5,6]indeno[2,1-c]chromene-4,6a(6H)-diol

(6aS,11bR)-7,11b-dihydroindeno[2,1-c]chromene-4,6a,9,10(6H)-tetraol

(6aS,12bR)-6a-hydroxy-10,10-dimethyl-6,6a,7,12b-tetrahydro-[1,3]dioxolo[4',5':5,6]indeno[2,1-c]chromen-4-yl trifluoromethanesulfonate

(6aS,12bR)-10,10-dimethyl-7,12b-dihydro-[1,3]dioxolo[4',5':5,6]indeno[2,1-c]chromen-6a(6H)-ol