| abstract |
Provided is a method for preparing a rivaroxaban intermediate compound of formula (I), comprising dissolving a compound of formula (II) into an organic solvent, and subjecting same to an ammonolysis reaction using an C3-4 alkyl primary amine as an ammonia source, so as to obtain a compound of formula I. The preparation method of the present invention is safer, more economical, simpler, and more environmentally friendly, and is suitable for industrialization. |