5-Hydroxy-4-(4-hydroxyphenyl)-2-oxo-5,6-dihydro-2H-1-benzoxocin-9-yl hexopyranoside & 9-hydroxy-4-(4-hydroxyphenyl)-2-oxo-5,6-dihydro-2H-1-benzoxocin-5-yl hexopyranoside AIDS-138677 AIDS138677 NSC645993 Specioside A & Specioside B