4-(6-Hydroxy-5-methyl-1,2,3,9a-tetrahydro-3aH-spiro[cyclopenta[b]chromene-9,1′-cyclopentan]-3a-yl)-2-methyl-1,3-benzenediol

1,3-Benzenediol, 2-methyl-4-(1,2,3,9a-tetrahydro-6-hydroxy-5-methylspiro[benzo[b]cyclopenta[e]pyran-9(3aH),1′-cyclopentan]-3a-yl)-

4-(6-Hydroxy-5-methyl-1,2,3,9a-tetrahydro-3aH-spiro[cyclopenta[b]chromene-9,1′-cyclopentan]-3a-yl)-2-methyl-1,3-benzenediol

4-(6-hydroxy-5-methyl-1,2,3,9a-tetrahydro-3aH-spiro[cyclopenta[b]chromene-9,1′-cyclopentan]-3a-yl)-2-methylbenzene-1,3-diol

4-(6-hydroxy-5-methylspiro[1,2,3,3a,9a-pentahydrocyclopenta[1,2-b]chromane-9,1′-cyclopentane]-3a-yl)-2-methylbenzene-1,3-diol