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PREPARATION OF AN ERYTHROAMINOALCOHOL THROUGH REACTION OF A CYANOHYDRIN DERIVATIVE AND A GRIGNARD REAGENT FOLLOWED BY TRANSIMINATION AND DEPROTECTION
PREPARATION OF AN ERYTHROAMINOALCOHOL THROUGH REACTION OF A CYANOHYDRIN DERIVATIVE AND A GRIGNARD REAGENT FOLLOWED BY TRANSIMINATION AND DEPROTECTION
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机译:通过过渡和保护反应进行氰基氰衍生物和硬脂酸酯反应的红氨基醇的制备
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摘要
The present invention is concerned with the preparation of erythro N-substituted vicinal aminoalcohol derivatives from hydroxyl-protected cyanohydrin derivatives by successive Grignard reaction, transimination using a primary amine, reduction of the resulting imine and removal of the hydroxyl-protecting group. The products are obtained either as a racemate or in an optically pure form, depending upon the stereochemical composition of the cyanohydrin derivatives.
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