A process for producing an azulene derivative useful as a Na+-glucose cotransporter inhibitor, which is high in yield, is simple in operation, is low in cost, is suited for environmental protection, and is advantageous industrially, the process being characterized by reducing and deprotecting at least one compound selected from penta-acyl compounds and tetra-acyl compounds or salts thereof to obtain a C-glycoside compound; and a useful intermediate for synthesis of such an azulene derivative, obtained in the course of the above process.
一种生产可用作 Na+-
葡萄糖共转运
抑制剂的偶氮烯衍
生物的工艺,该工艺收率高、操作简单、成本低、适用于环境保护,并且在工业上具有优势,该工艺的特点是将至少一种选自五酰基化合物和四酰基化合物或其盐的化合物还原和脱保护,以获得 C-糖苷化合物;以及在上述工艺过程中获得的用于合成这种偶氮烯衍
生物的有用中间体。