Dibenz[2,3:7,8]azuleno[4,5-l]phenanthrene-3,5,7,10,12,15,17-heptol,8b,9,13b,14,18b,18c-hexahydro-9,14-bis(4-hydroxyphenyl)-, (8ba,9a,13bb,14a,18ba,18ca)-(+)-