6-{5-[8-(3,5-Dihydroxy-phenyl)-4-hydroxy-7-(4-hydroxy-phenyl)-7,8-dihydro-benzo[1,2-b;4,3-b']difuran-2-yl]-2-hydroxy-phenyl}-1,7-bis-(4-hydroxy-phenyl)-1,6,7,11b-tetrahydro-2-oxa-dibenzo[cd,h]azulene-4,8,10-triol Amurensin K InChI=1/C56H40O13/c57-30-8-1-25(2-9-30)47-49(38-20-36(63)22-45-51(38)53(39-19-35(62)21-42(65)50(39)47)55(68-45)27-5-12-32(59)13-6-27)37-17-28(7-14-41(37)64)44-23-40-52-46(24-43(66)56(40)67-44)69-54(26-3-10-31(58)11-4-26)48(52)29-15-33(60)18-34(61)16-29/ rel-(1R,6S,7R,11bR)-6-{5-[(7R,8R)-8-(3,5-dihydroxyphenyl)-4-hydroxy-7-(4-hydroxyphenyl)-7,8-dihydrofuro[3,2-e][1]benzofuran-2-yl]-2-hydroxyphenyl}-1,7-bis(4-hydroxyphenyl)-1,6,7,11b-tetrahydrobenzo[6, ursa-12,18-dien-28-oic acid, 3-(alpha-L-arabinopyranosyloxy)-, (3beta)-