| abstract |
The present invention provides a commercial method for preparing high-purity 2-pyridylmethylsulfinylbenzimidazoles, their analogs and optically active enantiomers, or pharmaceutically acceptable salts, hydrates or solvates thereof. Feasible, cost-effective and energy-efficient process by using reactors such as plug flow reactors, microreactors, microflow flow reactors, tubular flow reactors, coil flow reactors, laminar flow reactors , packed bed reactor, fluidized bed reactor or fixed bed reactor. |