The disclosure describes novel precursors for the preparation of chiral 1,3-aminoalcohols. The precursors are chiral 4-hydroxycarboxamides, 4-hydroxyhydroxamic acids, or 4-hydroxyhydrazides produced from chiral gamma-lactones, which in turn are derived from 1,4-diols by stereoselective oxidation. The chiral 4-hydroxycarboxamides, 4-hydroxyhydroxamic acids, or 4-hydroxyhydrazides are converted into chiral 1,3-aminoalcohols by stereospecific rearrangement.
该披露描述了制备手性1,3-
氨基醇的新型前体。这些前体是手性
4-羟基羧酰胺、
4-羟基羟
肟酸或
4-羟基
肼,它们是从手性γ-内酯制备的,而手性γ-内酯则是由1,4
-二醇经立体选择性氧化得到的。这些手性
4-羟基羧酰胺、
4-羟基羟
肟酸或
4-羟基
肼通过立体特异性重排反应转化为手性1,3-
氨基醇。