5,6-Diaza-8b-azoniaacenaphthylene, 4-[(6S)-6-[[[(4aS,7S)-1-amino-4a,5,6,7-tetrahydro-7-[(2S)-2-hydroxyundecyl]-3-methyl-2H-pyrrolo[1,2-c]pyrimidin-8-ium-4-yl]carbonyl]oxy]heptyl]-1,2,2a,3,4,5,6,7,8,8a-decahydro-7-methyl-, (2aR,4S,7R,8aS)- AIDS-221583 AIDS221583