67648-61-7Relevant articles and documents
Microbial deracemization of α-substituted carboxylic acids: Substrate specificity and mechanistic investigation
Kato, Dai-Ichiro,Mitsuda, Satoshi,Ohta, Hiromichi
, p. 7234 - 7242 (2007/10/03)
A new enzymatic method for the preparation of optically active α-substituted carboxylic acids is reported. This technique is called deracemization reaction, which provides us with a route to obtain the enantiomerically pure compounds, theoretically in 100% yield starting from the racemic mixture. This means that the synthesis of a racemate is almost equal to the synthesis of the optically active compound, and this concept is entirely different from the commonly accepted one in the asymmetric synthesis. Using the growing cell system of Nocardia diaphanozonaria JCM3208, racemates of 2-aryl- and 2-aryloxypropanoic acid are deracemized smoothly and (R)-form-enriched products are recovered in high chemical yield (>50%). In addition, using optically active starting compounds and deuterated derivatives as well as inhibitors, we have disclosed the fact that a new type of enzyme takes part in this biotransformation, and that the reaction proceeds probably via the same mechanism as that in rat liver.
(2-quinoxalinyloxy) phenoxypropanoic acids and related derivatives as anticancer agents
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, (2008/06/13)
This invention relates to (2-quinoxalinyloxy)phenoxypropanoic acids, related derivatives thereof, enantiomeric and diastereomeric forms thereof, mixtures of enantiomeric diastereomeric forms thereof, and pharmaceutically acceptable salt forms thereof, pharmaceutical compositions containing them, processes for their preparation, and methods of using them to treat cancer, particularly solid tumors, in mammals.
Synthesis of 2-(4-hydroxyphenoxy)alkanoic acids
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, (2008/06/13)
A method for synthesizing 2-(4-hydroxyphenoxy)alkanoic acids by reacting a hydroxyaromatic ketone derivative with a 2-substituted alkanoic acid under basic conditions and thereafter oxidizing the intermediate with subsequent hydrolysis.