9,4-(Epoxy[1,11,13]pentadecatrienoimino)-5H-furo[2',3':7,8]naphtho[1,2-d]imidazole-5,10,26(9H)-trione, 16-(acetyloxy)-6,18,20-trihydroxy-14-methoxy-7,9,15,17,19,21,25-heptamethyl-2-phenyl-, (9S,14S,15R,16S,17R,18R,19R,20S,21S)- AIDS-113923 AIDS113923