the di-O-isopropylidene derivative of the cyclitol. Nucleophilic displacement of these sulfonates with azide ion in 2-methoxyethanol produced the azido compounds, hydrogenolysis of which with Raney nickel, followed by acetylation, gave thirteen optically active O-methyl-inosamine and two O-methyl-inosadiamine derivatives. The structures of the new aminocyclitols were established on the basis of 1H-n
从环糖醇的二-O-异亚丙基衍
生物开始,制备了一系列1-
槲皮醇的对
甲苯磺酸酯和
甲磺酸酯。在2-甲氧基
乙醇中用
叠氮化物离子对这些
磺酸盐进行亲核置换,生成了
叠氮基化合物,将其与阮内
镍氢解,然后进行乙酰化,得到了十三种光学活性的O-甲基-肌醇二胺和两个O-甲基-肌醇二胺衍
生物。基于相应的过-O-乙酰基衍
生物的1H-nmr光谱数据,确定了新的
氨基环糖醇的结构。讨论了取代反应的机理,主要涉及邻近基团的参与。