Processes for the non-selective synthesis of a compound, (-) - 5-methoxy-2 (4-methoxy-3,5-dimethyl-2-pyridinyl) methyl sulfinyl -1h-benzimidazole, (+) - 5-fluoro-2 - ((((4-cyclopropylmethoxy-2-pyridinyl) methyl) sulfinyl) -1h-benzimidazole, (-) - 5-fluoro-2 - ((((4-cyclopropylmethoxy-2-pyridinyl) methyl) sulfinyl ) -1h-benzimidazole, (-) - 5-fluoro-2 - (((((4-cyclopropylmethoxy-2-pyridinyl) methyl) sulfinyl) -1h-benzimidazole, (-) - 5-carbomethoxy-6-methyl-2- (3,4-dimethoxy-2-pyridinyl) methyl sulfinyl -1h-benzimidazole, (+) - 5-carbomethoxy-6-methyl-2 - (3,4-dimethoxy-2-pyridinyl) methyl sulfinyl -1h benzimidazole compound and use of compounds

摘要

PCT No. PCT/SE95/00818 Sec. 371 Date Jul. 14, 1995 Sec. 102(e) Date Jul. 14, 1995 PCT Filed Jul. 3, 1995 PCT Pub. No. WO96/02535 PCT Pub. Date Feb. 1, 1996A novel process for enantioselective synthesis of single enantiomers of omeprazole or its alkaline salts, of other optically pure substituted 2-(2-pyridinylmethyl-sulphinyl) -1H-benzimidazoles as well as of other structurally related sulphoxides or their alkaline salts. The claimed process is an asymmetric oxidation of a pro-chiral sulphide to the single enantiomers or an enantiomerically enriched form of the corresponding sulphoxide. The application also claims the enantiomeric sulphoxide products produced by the process and their use in medicine.