2-(3-(3,5-Dihydroxyphenyl)-6-hydroxy-2-(4-hydroxyphenyl)-2,3-dihydro-1-benzofuran-5-yl)-5,7-dihydroxy-8-(3-methyl-2-butenyl)-2,3-dihydro-4H-chromen-4-one AIDS-160783 AIDS160783 NSC647942 Sophoraflavanone H