Large-scale separation of silybin diastereoisomers using lipases (Articolo in rivista)

Type
Label
  • Large-scale separation of silybin diastereoisomers using lipases (Articolo in rivista) (literal)
Anno
  • 2010-01-01T00:00:00+01:00 (literal)
Alternative label
  • Gazak R., Marhol P., Purchartova K., Monti D., Biedermann D., Riva S., Cvak L., Kren V. (2010)
    Large-scale separation of silybin diastereoisomers using lipases
    in Process biochemistry (1991)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Gazak R., Marhol P., Purchartova K., Monti D., Biedermann D., Riva S., Cvak L., Kren V. (literal)
Pagina inizio
  • 1657 (literal)
Pagina fine
  • 1663 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 45 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Institute of Microbiology, Centre of Biocatalysis and Biotransformation, Academy of Sciences of the Czech Republic, Vídenská 1083, CZ-142 20 Prague, Czech Republic. Istituto di Chimica del Riconoscimento Molecolare, C.N.R., Via Mario Bianco 9, 20131 Milano, Italy. TAPI Galena, IVAX Pharmaceuticals, Opava, Czech Republic (literal)
Titolo
  • Large-scale separation of silybin diastereoisomers using lipases (literal)
Abstract
  • The flavonolignan silybin (1), isolated from the seeds of milk thistle (Silybum marianum), occurs in nature as an equimolar mixture of two diastereoisomers, silybin A and silybin B, that exhibit different biologi- cal activities. The preparative production of optically pure silybin A and B in a diastereoisomeric purity greater than 95% was accomplished using immobilized Candida antarctica lipase B (Novozym 435) in a combination of two reactions: regioselective acetylation of a natural silybin mixture (1) and subsequent stereoselective alcoholysis of the resulting 23-O-acetylsilybin (2). Several grams of the optically pure sub- stances can be produced within one week using this new, robust and scalable process, which is selective, mild and high-yielding. (literal)
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