There is provided an efficient and excellent preparation method of an α-halo-tetraacyl-glucose which is suitable for industrial preparation, which comprises reacting D-glucose or lower alkyl D-glucoside with a reactive derivative of a carboxylic acid and a metal halide to prepare the α-halo-tetraacyl-glucose represented by the formula (III):
wherein R represents an optionally substituted lower alkyl group or an optionally substituted aryl group, and X represents a halogen atom,
in one step, and the resulting α-halo-tetraacyl-glucose (III) can be converted into a compound of the formula (I) or a salt thereof by subjecting to a conventional method.
提供了一种适用于工业制备的高效、优秀的α-卤代四酰基
葡萄糖的制备方法,该方法包括将
D-葡萄糖或低级烷基
D-葡萄糖苷与
羧酸的活性衍
生物和
金属卤化物反应,以制备由公式(III)表示的α-卤代四酰基
葡萄糖:其中R代表一个可选地被取代的低级烷基团或一个可选地被取代的芳基团,X代表一个卤素原子,一步完成,并且得到的α-卤代四酰基
葡萄糖(III)可以通过常规方法转化为公式(I)的化合物或其盐。