2-Pyrrolidineacetamide, 4-[(2E,4E,6R)-6-[(1S,3S,4R,5S,8S)-1,4-dimethylspiro[2,9-dioxabicyclo[3.3.1]non-6-ene-8,2'-oxiran]-3-yl]-1-hydroxy-4-methyl-2,4-heptadienylidene]-N,.alpha.-dimethyl-3,5-dioxo-1-[(2S,5S,6S)-tetrahydro-5-hydroxy-6-methyl-2H-pyran-2-yl]-,( .alpha.S,2S,4E)- 7229-50-7 AIDS-000519 AIDS000519 NSC3360 Portamycin Streptolydigin