Vi. Vysokov et al., THE SYNTHESIS OF FLUORINATED 4H-1,4-BENZOTHIAZINE-2-CARBOXYLIC ACID 1,1-DIOXIDES-THIONATED ANALOGS OF PEFLOXACIN, Mendeleev communications, (4), 1993, pp. 159-160
A synthetic route to 1,4-benzothiazine-2-carboxylic acid 1,1-dioxides,
analogues of the 'fluoroquinolone' family of antibacterials, has been
developed; unfortunately, the target compound (the thia-analogue of p
efloxacin) has not revealed remarkable antibacterial activity in vitro
against the majority of the strains tested.