| abstract |
Compounds of the formula II are provided: wherein X is selected from chlorine, fluorine, bromine and iodine, R1 and R2 are each independently selected from H, -CH3, -CH2CH3, -CH2CH2CH3, or -CH ( CH3) 2,; compositions containing them, their use in therapy, including their use as antimicrobial agents, for example, in the treatment of a mycobacterial infection in a mammal, and methods for the preparation of these compounds. |