(2S,3S,4aR)-2,3,7-trihydroxy-9-methoxy-4a-methyl-4,4a-dihydro-2H-benzo[c]chromen-6(3H)-one;(2R,3R,4aS)-2,3,7-trihydroxy-9-methoxy-4a-methyl-3,4-dihydro-2H-benzo[c]chromen-6-one;2,3,7-Trihydroxy-9-methoxy-4a-methyl-2,3,4,4a-tetrahydro-6H-dibenzo[b,d]pyran-6-one