(-)-Michellamine A 137793-81-8 5,5'-(1,1'-Dihydroxy-8,8'-dimethoxy-6-6'-dimethyl[2,2'-binaphthalene]-4,4'-diyl)bis[1,2,3,4-tetrahydro-1,3-dimethyl-6,8-isoquinolinediol], (1R,3R,5S,1'R,3'R,5'S) AIDS-003609 AIDS003609 Michellamine A NSC650898