Synthesis of analogues of the O-β- -Ribofuranosyl Nucleoside Moiety of Liposidomycins. Part 1: contribution of the amino group and the Uracil Moiety upon the inhibition of MraY

The O-β- -ribofuranosyl nucleoside I is the minimal structural entity of liposidomycins maintaining enzyme inhibitory activity. Modifications performed on both the primary amine and the uracil moieties clearly demonstrate their major contribution to the inhibition of the bacterial translocase (MraY).