AIDS-209853 AIDS209853 Dibenzo[b,e][1,4]dioxin-1,3,6,8-tetrol, 4-[4-[[6-(3,5-dihydroxyphenoxy)-4,7,9-trihydroxydibenzo[b,e][1,4]dioxin-2-yl]oxy]-3,5-dihydroxyphenoxy]-