The invention relates to antibacterial and anti-mycobacterial drug compounds of formula I. It also relates to pharmaceutical formulations of antibacterial drug compounds. It also relates to uses of the derivatives in treating bacterial infections, and methods of treating bacterial infections. The invention is also directed to antibacterial drug compounds capable of treating bacterial infections that are currently hard to treat with existing drug compounds, e.g., those caused by resistant bacterial or mycobacterial strains.
