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S-type 2-substituted hydroxy-2-indolinylbutyric ester compounds and process for preparation thereof

机译:S型2-取代的羟基-2-吲哚基丁酸酯化合物及其制备方法

摘要

A process for preparing an S type 4-substituted hydroxypyrano-indolidine compound of the formula (VII): wherein R° is a residue of a nitrogen-containing fused heterocyclic carboxylic acid having an absolute configuration of "R" which is obtained by removing hydroxy group from the carboxyl group of said carboxylic acid (in which the nitrogen atom contained in the residue is protected), is described.;The process involves reduction, alkanoylation, nitrosation, rearrangement and intramolecular cyclization reactions.
机译:一种制备式(VII)的S型4-取代的羟基吡喃-吲哚啶化合物的方法:<图像文件=“ 80000001.GIF” he =“ 32” imgContent =“ chem” imgFormat =“ GIF” inline =“ no” Orientation =“ portrait” wi =“ 88” />其中R°是绝对构型为“ R”的含氮稠合杂环羧酸的残基,其是通过从所述羧酸的羧基上除去羟基而获得的(其中残基中包含的氮原子被保护的)被描述。该方法涉及还原,烷酰基化,亚硝化,重排和分子内环化反应。

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