Iridoid glycosides and phenolic glycosides from Holmskioldia sanguinea

• Published in: Phytochemistry (Oxford) 1999-02, Vol.50 (4), p.619-627
• Main Authors: Helfrich, Esther, Rimpler, Horst
• Format: Article
• Language: English
• Subjects: Biological and medical sciences; centrifugal partition chromatography; chemical constituents of plants; Chemical constitution; chemical structure; CPC; Fundamental and applied biological sciences. Psychology; Holmskioldia sanguinea; iridoid glycosides; iridoids; Labiatae; leaves; monoesters of rhamnopyranosylcatalpol; nuclear magnetic resonance spectroscopy; phenolic compounds; phenolic glycosides; Plant cytology, morphology, systematics, chorology and evolution; Plant physiology and development; spectral analysis; Spermatophyta; Systematics (diagnosis, chromosome numbers); Verbenaceae
• ISSN: 0031-9422; 1873-3700
• DOI: 10.1016/S0031-9422(98)00559-7

Four new iridoids, 6- O-α- l-(2″- O- trans-cinnamoyl)rhamnopyranosylcatalpol, 6- O-α- l-(3″ -O-trans-cinnamoyl)rhamnopyrano sylcatalpol, 6- O-α- l-(4″- O- trans-cinnamoyl)rhamnopyranosylcatalpol and 6- O-α- l-(4″- O- cis-feruloyl)rhamnopyranosylcatalpol, along with three known monoacyl rhamnopyranosylcatalpol derivatives have been isolated from the aerial parts of Holmskioldia sanguinea. Catalpol was identified by GC and GC–MS analysis. Three known phenolic glycosides, isolated in small amounts, were identified as methyl salicylate glucoside, osmanthuside H, and icariside F 2. The structures were established by spectroscopic methods. The taxonomic significance of our results is discussed.