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  • (-)-Hypnophilin, enantiomerically pure  (1)
  • 1990-1994  (1)
  • 1965-1969
  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Liebigs Annalen 1991 (1991), S. 893-902 
    ISSN: 0170-2041
    Keywords: (-)-Hypnophilin, enantiomerically pure ; Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Chemistry and Stereochemistry of Iridoids, XVI. - EPC-Synthesis of (-)-HypnophilinThe synthesis of enantiomerically pure (-)-hypnophilin (27) from (6R,7R)-(-)-7-hydroxy-3-oxabicyclo[4.3.0]non-1-en-9-one (1) is described. 1 was obtained in 93% yield from catalpol, which is readily available from the aqueous sodium carbonate extract of Picrorhiza kurrooa (Scrophulariaceae). The specific rotation, MS, 1H- and 13C-NMR data of synthetic (-)-hypnophilin were identical with those of the natural product.
    Additional Material: 3 Tab.
    Type of Medium: Electronic Resource
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