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Chemie und Stereochemie der Iridoide, XVI. EPC-Synthese von (-)-Hypnophilin (1991)

Weinges, Klaus ; Iatridou, Helene ; Dietz, Uwe

Weinheim : Wiley-Blackwell

Liebigs Annalen 1991 (1991), S. 893-902

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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

URL: http://dx.doi.org/10.1002/jlac.1991199101154

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