Thirty novel 9-fluoro-2, 3-dihydro-8, 10-(mono/di-sub)-3-methyl-8-nitro-7-oxo-7H-[1, 4] oxazino [2, 3, 4-ij] quinoline-6-carboxylic acids were synthesized from 2, 3, 4, 5-tetrafluoro benzoic acid and evaluated for in vitro and in vivo antimycobacterial activities against Mycobacterium tuberculosis H37Rv (MTB), multi-drug resistant Mycobacterium tuberculosis (MDR-TB), and Mycobacterium smegmatis (MC2) and also tested for the ability to inhibit ...