Process for preparing D,L-2-amino-4-methylphosphinobutyric acid
申请人:——
公开号:US04264532A1
公开(公告)日:1981-04-28
PCT No. PCT/JP78/00058 Sec. 371 Date June 15, 1979 Sec. 102(e) Date June 15, 1979 PCT Field Dec. 18, 1978 PCT Pub. No. WO79/00405 PCT Pub. Date July 12, 1979 This invention relates to a novel process for preparing D,L-2-amino-4-methylphosphinobutyric acid having herbicidal and antifungicidal activities which comprises subjecting acrolein to reaction with a dialkyl phosphonite to synthesize an acetal of an ester of 3-oxopropylmethylphosphinic acid; treating the thus obtained compound with an acid for deacetalization to obtain an ester of 3-oxopropylmethylphosphinic acid and then applying the Strecker's process used for amino synthesis to the thus obtained ester.
The invention is related to phosphorus substituted compounds with antiviral activity, compositions containing such compounds, and therapeutic methods that include the administration of such compounds, as well as to processes and intermediates useful for preparing such compounds.