Aminoketone derivative compounds containing a heterocyclic ring bonded to an aminoketone moiety and useful as effective ingredients of centrally acting muscle relaxants and pollakiurea curing agents. (+)3-phenyl-5-[2-(1-pyrrolidinylmethyl)butyryl] isoxazole, which has a more remarkable central muscle relaxant action as compared with its racemic modification, can be effectively separated from the racemic modification using optically active 10-camphorsulfonic acid as the agent for the optical resolution.
Aminoketone derivative compounds containing a heterocyclic ring bonded to an aminoketone moiety and useful as effective ingredients of centrally acting muscle relaxants and pollakiurea curing agents. (+)3-phenyl-5-[2-(1-pyrrolidinylmethyl)butyryl]isoxazole, which has a more remarkable central muscle relaxant action as compared with its racemic modification, can be effectively separated from the racemic modification using optically active 10-camphorsulfonic acid as the agent for the optical resolution.
Aminoketone derivatives of 1,2-oxazole and use thereof
申请人:Mitsui Toatsu Chemicals Incorporated
公开号:US05338857A1
公开(公告)日:1994-08-16
Aminoketone derivative compounds containing a heterocyclic ring bonded to an aminoketone moiety and useful as effective ingredients of centrally acting muscle relaxants and pollakiurea curing agents. (+)3-phenyl-5-[2-(1-pyrrolidinylmethyl)butyryl]isoxazole, which has a more remarkable central muscle relaxant action as compared with its racemic modification, can be effectively separated from the racemic modification using optically active 10-camphorsulfonic acid as the agent for the optical resolution.
Mutant Malonyl-CoA Synthetases with Altered Specificity for Polyketide Synthase Extender Unit Generation
作者:Irina Koryakina、Gavin J. Williams
DOI:10.1002/cbic.201100383
日期:2011.10.17
saturation mutagenesis followed by colorimetric screening to identify mutant malonyl‐CoA synthetases with altered substrate specificity. One particular mutant displayed a 240‐fold shift in specificity (see graphic). These mutant enzymes will be useful tools for providing extenderunits to probe the activity of polyketidesynthases.