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It is known that the sugar chain linked to steroidal frame plays an important role in physiological and pharmacological activities. In the previous research, we found and confirmed that the terminal C3-O-α-1,2-rhamnosyl moiety linked to the C-3 of steroidal saponin is the key group of platelet aggregation and cytotoxicity. In order to make a complete approach for the structure–activity relationship,...
The defatted seed meal of common vetch (Vicia sativa L.) served as a source of (R)-oxynitrilase which catalyzed the enantioselective addition of HCN to aromatic, heteroaromatic, fluoro-substituted aromatic aldehydes to produce the corresponding enantiomeric pure cyanohydrins in yields of 52–100% and 88–99% ee at 12°C under micro-aqueous medium (diisopropyl ether) without addition of buffer solution.
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