AIDS-181276 AIDS181276 Ristomycin A aglycone, 22, 31-dichloro-38-de(methoxycarbonyl)-7-demethyl-19-deoxy-38-[[[3-(dimethylamino)propyl]amino]carbonyl]-41-[(n-nonylamino)methyl]- Teicoplanin aglycone deriv.