Abstract: The invention relates to conglomerates of tenatoprazole potassium salts of the following general formula (I), that consist of an equimolar mixture of enantiomers having R and S configurations and capable of crystallization in the form of a conglomerate, wherein said salts are selected from tenatoprazole dehydrated potassium salt, tenatoprazole potassium dimethanolate, tenatoprazole potassium diethanolate and tenatoprazole potassium ethylene-glycolate. The invention also relates to a pharmaceutical composition containing such salt, and to the use of said salt.

Abstract: The present invention concerns enantioselective preparation of sulphoxide derivatives or their salts. The method consist in performing an enantioselective oxidation of a sulphur of general formula (I) A —CH2—SB, wherein: A is a diversely substituted pyridinyl ring and B is a heterocyclic radical comprising an imidazo-pyridinyl ring, using an oxidizing agent in the presence of a titanium (IV)-based catalyst and a chiral ligand consisting of a cyclic beta or gamma-amino-alcohol, in an organic solvent, followed, if required, by salt formation with a base. The invention is useful for preparing sulphoxides useful in therapeutics.

Abstract: The present invention concerns enantioselective preparation of sulphoxide derivatives or their salts. The method consist in performing an enantioselective oxidation of a sulphur of general formula (I) A-CH2—SB, wherein: A is a diversely substituted pyridinyl ring and B is a heterocyclic radical comprising an imidazo-pyridinyl ring, using an oxidizing agent in the presence of a titanium (IV)-based catalyst and a chiral ligand consisting of a cyclic beta or gamma-amino-alcohol, in an organic solvent, followed, if required, by salt formation with a base. The invention is useful for preparing sulphoxides useful in therapeutics.