5,7-Dimethoxy-3,10-dimethyl-9-[(3R,4S,5S,6R)-3,4,5-trihydroxy-6-((3R,4R,5R,6S)-3,4,5-trihydroxy-6-methyl-tetrahydro-pyran-2-yloxymethyl)-tetrahydro-pyran-2-yloxy]-naphtho[2,3-c]pyran-1-one AIDS-113426 AIDS113426 Paepalantine-9-O-.alpha.-L-rhamnopyranosyl-(1-