A method for treating or preventing a microbial infection in a subject in need thereof, the method comprising administering to the subject, a therapeutically effective amount of a compound of Formula Ia, a compound of Formula IIa, one or more compounds of Formula Ia or Formula IIa complexed with a metal core, or a pharmaceutically acceptable salt, prodrug or hydrate thereof.
The reaction of 2-methylthio- or 2-phenylthioarylimines with di-iso-propyl peroxydicarbonate (DPDC) is described. The phenylthio-derivatives undergo cyclization to benzothiazoles via a free-radical mechanism, whereas the methylthio-analogs afford arylthiomethyl iso-propyl carbonates, together with benzothiazoles as well; this last result could be accounted for with the intervention of non-radical mechanism