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-CH
2
—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.
本发明涉及对亚砜衍
生物或其盐的对映选择性制备。该方法包括在一般式(I)A-
CH2-SB的
硫上进行对映选择性氧化,其中:A是多样取代的
吡啶环,B是含有
咪唑吡啶环的杂环基,使用一种氧化剂,在
钛(IV)基催化剂和由环状β或γ-
氨基醇组成的手性
配体的存在下,在有机溶剂中进行,随后,如有必要,通过碱形成盐。该发明对于制备在治疗中有用的亚砜具有用处。