2-((R)-8,8-Dimethyl-3,4-dihydro-2H,8H-benzo[1,2-b:4,3-b']dipyran-3-yl)-5-hydroxy-4-(3-methyl-but-2-enyl)-4-((E)-3-methyl-but-2-enyl)-cyclohexa-2,5-dienone 5',5'-Diprenylglabridin AIDS-096020 AIDS096020