5,6-Diaza-8b-azoniaacenaphthylene, 3,3'-[1,4-phenylenebis(methyleneoxycarbonyl)]bis[1,2,2a,5,6,7,8,8a-octahydro-4-methyl-7-nonyl-, (2aS,7S,8aR,2'aS,7'S,8'aR)- AIDS-221597 AIDS221597