Crystal Characteristic sehujiniru Acid attaching salting and the sehujiniru intermediate field of production mannered

摘要

Topic Crystal characteristic sehujiniru acid attaching salting, offer of this production method and production method of the sehujiniru acid which uses thisSolutionsReacting the sehujiniru intermediate field with formic acid - sulfuric acid, or the mixed acid of formic acid - methane sulfonic acid, the stage which obtains the crystal characteristic sehujiniru sa And the crystal characteristic salt which is obtained the stage which it reacts with the base in the solvent is included, sehujiniru of high purity can be produced at high yield with the method of this invention. Selective figure Figure 2