申请人:Sibi Mukund P.
公开号:US20110218342A1
公开(公告)日:2011-09-08
Disclosed are β-amino acids that are unsubstituted in the β position; that are substituted in the β position with an aryl group; that are substituted in the α position with an aryl group; that bear two substituents in the α position; and/or that are substituted in the α and β positions with groups which, together with the carbon atoms at the α and β positions, form a ring. Also disclosed are methods for making the above-mentioned β-amino acids and other β-amino acids which involve providing an α,β-unsaturated imide; converting the α,β-unsaturated imide to a 2-substituted-isoxazolidin-5-one; and converting the 2-substituted-isoxazolidin-5-one to a β-amino acid.
披露了未在β位取代的β-氨基酸;在β位用芳基取代的β-氨基酸;在α位用芳基取代的β-氨基酸;在α位带有两个取代基的β-氨基酸;和/或在α和β位用与α和β位的碳原子一起形成环的基团取代的β-氨基酸。还披露了制备上述β-氨基酸和其他β-氨基酸的方法,包括提供α,β-不饱和亚胺;将α,β-不饱和亚胺转化为2-取代异噁唑啉-5-酮;将2-取代异噁唑啉-5-酮转化为β-氨基酸。