The polyhydroxylated azepanes (3R,4R,5R,6R)-tetrahydroxyazepane (−)-1 and (3S,4S,5S,6S)-tetrahydroxyazepane (+)-1 are synthesised from D-and L-chiro-inositol, respectively. Key transformations in the reaction sequence include a glycol-fission reaction with sodium metaperiodate supported on silica gel and the double reductive amination of a manno-1,6-dialdehyde derivative. This work represents the first synthesis of tetrahydroxyazepanes from inositols.
多羟基氮杂
环庚烷(3R,4R,5R,6R)-四羟基氮杂
环庚烷(-)-1 和(3S,4S,5S,6S)-四羟基氮杂
环庚烷(+)-1 分别由 D 和 L-螺肌醇合成。反应序列中的关键转化包括与
硅胶支撑的偏
碘酸钠发生的
乙二醇裂变反应,以及甘露-1,6-二醛衍
生物的双还原胺化反应。这项工作是首次从肌醇合成四羟基氮杂
环庚烷。