The present invention relates to novel pyridinium compounds, their isomers, steroisomers, atropisomers, conformers, tautomers, polymorphs, hydrates and solvates. The present invention also encompasses process for preparing novel compounds and pharmaceutical composition of said compounds. The invention further relates to the use of the above mentioned compounds for the preparation of medicament for use as pharmaceuticals.本發明係相關於新吡啶陽離子化合物、其同分異構物、立體異構物、阻轉異構物、構形異構物、互變異構物、多形體、水合物與溶劑化物。本發明亦包括製備新化合物與該化合物之藥學組成物的方法。本發明進一步地相關於上述化合物用於製備藥劑的用途,該藥劑用作藥品。