申请人:Bayer Aktiengesellschaft
公开号:US04405714A1
公开(公告)日:1983-09-20
A process has been developed for the preparation of compounds of the formula ##STR1## wherein R is hydrogen or an optionally substituted alkyl radical, which comprises reacting glucose with a compound of the formula H.sub.2 N-R wherein R has the meaning given above to form a 1-amino-sorbitol of the formula ##STR2## wherein R has the meaning given above, reacting said 1-aminosorbitol with a compound providing a protective group which can be split off under acid conditions and is stable in the subsequent microbiological oxidation process, aerobically oxidizing the compound thus obtained microbiologically to give a protected 6-aminosorbose, splitting off the protective group under acid conditions and hydrogenating the 6-aminosorbose salt thus obtained either after being isolated or in one operation, to give the compound of the formula (I). The products obtained by the process of the invention are useful as .alpha.-glucoside inhibitors.
一种制备式为##STR1##的化合物的方法已经开发出来,其中R是氢或可选取代的烷基基团,包括将葡萄糖与式为H.sub.2 N-R的化合物反应,其中R具有上述给定的含义,形成式为##STR2##的1-氨基山梨醇,其中R具有上述给定的含义,将所述的1-氨基山梨醇与提供可以在酸性条件下分离的保护基团反应,且在随后的微生物氧化过程中稳定,通过微生物氧化获得保护的6-氨基山梨醛,然后在酸性条件下分离保护基团,并将获得的6-氨基山梨醛盐在分离后或在一次操作中加氢,以得到式为(I)的化合物。本发明所得的产物可用作α-葡萄糖苷酶抑制剂。