5,6-Diaza-8b-azoniaacenaphthylene, 4-heptyl-1,2,2a,3,4,5,6,8a-octahydro-8-(methoxycarbonyl)-7-[5-[(2aS,7S,8aR)-1,2,2a,5,6,7,8,8a-octahydro-3-(methoxycarbonyl)-7-nonyl-5,6-diaza-8b-azoniaacenaphthylen-4-yl]pentyl]-, (2aR,4S,8aS)- AIDS-221595 AIDS221595