(2RS,3RS,4SR)-2,3-Dihydro-4-hydroxy-5-methoxy-2,3,8, {8-tetramethyl-4H,8H-benzo-[1,2-b:3,4-b']dipyran} 5-Methoxy-2,3,8,8-tetramethyl-3,4-dihydro-2H,8H-pyrano[2,3-f]chromen-4-ol AIDS-161127 AIDS161127 NSC672258 NSC672259 NSC672260