Method for synthesizing multi-substituted benzothiazole derivative

The invention provides a method for synthesizing a multi-substituted benzothiazole derivative by using o-amino disulfide and aldehyde as raw materials, and relates to the technical field of medicine. The synthesizing method comprises the following steps of: dissolving the o-amino disulfide and the aldehyde into a proper solvent, reacting for 10 to 30 minutes at room temperature, and thus obtaining a product. The o-amino disulfide and the aldehyde which are simple, readily available and convenient to use are used as the raw materials and reacted under the catalyst of a cheap iron salt to quickly and efficiently synthesize the multi-substituted benzothiazole derivative. The method has the advantages that the raw materials are readily available, the operation is convenient, the reaction conditions are mild, the yield is high and the like.