Organic synthesis and Production based on Bioresources and Biocatalysis

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A variety of methods and theory controlling the reaction species and conditions in organic chemistry has recently been developed. Enzymes are exception. Chemists look upon enzymes as elegant reagents in molecular transformation, and many efforts have been devoted on the utilization of enzymes and microorganisms in synthetic organic chemistry. Needless to say, a remarkable advantage is that enzymes are the catalysts whose supply from microorganisms, animals, and plants never quit, as the resources can be reproduced in a self-production manner. In this study supported by the grant-in-aid (2000-2001), moreover, the starting materials were secured from the new source, bio-mass and fermentation products.The achievements were; 1) Synthesis of enantioemrically enriched compounds by anti-Prelog yeast (Yamadazyma farinosa)-catalyzed asymmetric reduction; 2) Asymmetrization and kinetic resolution by means of a yeast (Torulaspora delbrueckii) catalyzed reduction; 3) Clarification of some phenomena observed in lipase-catalyzed hydrolysis and esterification toward the establishment of efficient kinetic resolution; 4) application on the synthesis of glycoconjugates: N-acetylglucosaminyl-Cbz-asparagine; 5) Integrated combined process of chemo-enzymatic procedure: synthesis of (R)-2-naphthylmethoxyacetic acid.