6H-Pyrano[2,3,4-ij]quinolizine-5-carboxylic acid, 10-[(2S,4S)-4-amino-2-methyl-1-pyrrolidinyl]-9-fluoro-2,3,3a,10b-tetrahydro-3-methyl-6-oxo-, (3R)- AIDS-094805 AIDS094805