New insight into the biosynthesis of flavanolignans in the white-flowered variant of Silybum marianum

Sz Nyiredy, Zs Samu, Z. Szücs, K. Gulácsi, T. Kurtán, S. Antus

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

It has been demonstrated that besides the known flavanolignan constituents of the white-flowered variant of Silybum marianum, (-)-silandrin A (3a) and (-)-isosilandrin A (4a); their transbenzodioxane diastereomers, (-)-silandrin B (3b) and (-)-isosilandrin B (4b), are also produced by the plant. Moreover, the isolation of their cis-benzodioxane diastereomers, (-)-isocisilandrin (5) and cisilandrin (6), confirm that the previously proposed biosynthetic pathway involving a nonselective O-β coupling is correct.

Original languageEnglish
Pages (from-to)93-96
Number of pages4
JournalJournal of chromatographic science
Volume46
Issue number2
DOIs
Publication statusPublished - Feb 2008

ASJC Scopus subject areas

  • Analytical Chemistry

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