43229-87-4Relevant articles and documents
Synthesis of D- and L-Phenylalanine Derivatives by Phenylalanine Ammonia Lyases: A Multienzymatic Cascade Process
Parmeggiani, Fabio,Lovelock, Sarah L.,Weise, Nicholas J.,Ahmed, Syed T.,Turner, Nicholas J.
, p. 4608 - 4611 (2015/04/14)
The synthesis of substituted D-phenylalanines in high yield and excellent optical purity, starting from inexpensive cinnamic acids, has been achieved with a novel one-pot approach by coupling phenylalanine ammonia lyase (PAL) amination with a chemoenzymatic deracemization (based on stereoselective oxidation and nonselective reduction). A simple high-throughput solid-phase screening method has also been developed to identify PALs with higher rates of formation of non-natural D-phenylalanines. The best variants were exploited in the chemoenzymatic cascade, thus increasing the yield and ee value of the D-configured product. Furthermore, the system was extended to the preparation of those L-phenylalanines which are obtained with a low ee value using PAL amination.
Antithrombotic quinoxazolines
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, (2008/06/13)
Quinoxazolines having antithrombotic activity. Exemplary of those disclosed are: 4-{[6-(N-carboxymethyl-quinolin-8-yl-sulphonylamino)-1-methyl-2-oxo-1,2-dihydroquinoxalin-3-yl]-methyl}-benzamidine, 4-{[6-(1-(N-cyclopentyl-carboxymethylcarbonylamino)-cyclo-propyl)-1-methyl-2-oxo-1,2-dihydroquinoxalin-3-yl]-methyl}-benzamidine, and 4-{[7-(N-carboxymethylaminocarbonyl-ethylamino)-4-methyl-quinolin-2-yl]-oxo}-benzamidine.