.beta.-D-Allofuranuronic acid, 5-[[2-amino-5-O-(aminocarbonyl)-2-deoxy-L-xylonoyl]amino]-1,5-dideoxy-1-[3,4-dihydro-5-(hydroxymethyl)-2,4-dioxo-1(2H)-pyrimidinyl]- 19396-06-6 AIDS-087831 AIDS087831 Polyoxin B