(6R)-3-[({(1S)-1-[1-(3-Carboxy-1-cyclopropyl-6-fluoro-8-methoxy-4-oxo(7-hydroquinolyl))pyrrolidin-3-yl]ethyl}amino)methyl]-5-oxo-6-(2-phenoxyacetylamino)-2H,6H,6aH-azetidino[2,1-b]1,3-thiazine-4-carboxylic acid AIDS-110387 AIDS110387 PGE-7594630