申请人:Hoechst Aktiengesellschaft
公开号:US05051525A1
公开(公告)日:1991-09-24
N-acyl-2-amino acid amides containing phosphinic esters, process for their preparation, and N-acyl-2-amino acid nitriles as precursors Phosphorus-containing N-acyl-2-amino acid amides of the general formula (I) ##STR1## where R.sup.1 is alkyl, optionally substituted by halogen or alkoxy, or is benzyl or phenyl, each of which is optionally substituted by alkyl, alkoxy, halogen, nitro or CF.sub.3, or is cycloalkyl, and R.sup.2 is H, or alkyl, optionally substituted by halogen or alkoxy, or is (CH.sub.2).sub.n -phenyl, optionally substituted in the phenyl ring by alkyl, alkoxy, halogen, nitro or CF.sub.3, where n=0, 1, 2 or 3, are valuable intermediates for the preparation of L-phosphinothricin by enzymatic cleavage, and can be obtained from the corresponding N-acyl-2-amino acid nitrile by selective acid hydrolysis.
含有磷酸酯的N-酰基-2-氨基酸酰胺,其制备方法,以及N-酰基-2-氨基酸腈作为前体的磷含量化合物。通式(I)中的磷含量N-酰基-2-氨基酸酰胺:##STR1##其中R.sup.1是烷基,可以被卤素或烷氧基取代,或者是苄基或苯基,每个基团也可以被烷基,烷氧基,卤素,硝基或CF.sub.3取代,或者是环烷基,R.sup.2是H或烷基,可以被卤素或烷氧基取代,或者是(CH.sub.2).sub.n-苯基,苯环上可以被烷基,烷氧基,卤素,硝基或CF.sub.3取代,其中n=0,1,2或3,是制备L-磷酸乙草胺的有价值的中间体,通过酶解可以获得,并且可以通过选择性酸水解从相应的N-酰基-2-氨基酸腈中获得。