10-[(S)-8-Amino-6-aza-spiro[3.4]oct-6-yl]-9-fluoro-2,3-dihydro-3(S)-methyl-7-oxo-7H-pyrido[1,2,3-de][1,4]benzoxazine-6-carbocylic acid 129321-78-4 151390-79-3 AIDS-040815 AIDS040815