EurekaMag.com logo
+ Site Statistics
References:
52,725,316
Abstracts:
28,411,598
+ Search Articles
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on Google+Follow on Google+
Follow on LinkedInFollow on LinkedIn

+ Translate

Penstemonoside and other iridoids from castilleja rhexifolia conversion of penstemonoside to the pyridine monoterpene alkaloid rhexifoline






Journal of Natural Products (Lloydia) 47(5): 854-857

Penstemonoside and other iridoids from castilleja rhexifolia conversion of penstemonoside to the pyridine monoterpene alkaloid rhexifoline

Blossom heads of C. rhexifolia yielded the iridiod glucosides penstemonoside, catalpol and aucubin in approximately equal amounts. Penstemonoside was converted to its aglycone with .beta.-glucosidase, and the aglycone was transformed into the pyridine monoterpene alkaloid rhexifoline by treatment with NH3. The conversion of penstemonoside into rhexifoline corroborates the rhexifoline structure proposed from spectroscopic data and also establishes its absolute stereochemistry.

Accession: 006079068

DOI: 10.1021/np50035a017

Download PDF Full Text: Penstemonoside and other iridoids from castilleja rhexifolia conversion of penstemonoside to the pyridine monoterpene alkaloid rhexifoline



Related references

Iridoids and alkaloids from Castilleja host plants for Platyptilia pica. Rhexifoline content of P. pica. Biochemical systematics and ecology4(5): 499-506, 1986

Iridoids and alkaloids from castilleja host plants for platyptilia pica rhexifoline content of platyptilia pica. Biochemical Systematics & Ecology 14(5): 499-506, 1986

In vitro antispasmodic activity of peracetylated penstemonoside, aucubin and catalpol. Planta Medica 60(6): 512-515, 1994

Pyrrolizidine and pyridine monoterpene alkaloids from 2 castilleja plant hosts of the plume moth platyptilia pica. Journal of Natural Products (Lloydia) 47(5): 846-853, 1984

Pyrrolizidine and pyridine monoterpene alkaloids from two Castilleja plant hosts of the plume moth, Platyptilia pica. Journal of natural products 47(5): 846-853, 1984

Pyrrolizidine alkaloids in castilleja rhexifolia scrophulariaceae. Phytochemistry (Oxford) 17(12): 2142, 1978

Root parasitism in Castilleja rhexifolia Rydb. Arctic and Alpine Research 5(2): 145-147, 1973

Pyridine monoterpene alkaloid formation from iridoid glycosides. A novel PMTA dimer from geniposide. Journal of Natural Products 59(1): 41-46, 1996

Iridoids 24. biomimetic synthesis of the monoterpene alkaloids xylostosidine and loxylostosidine a and of similar unnatural compounds by transformations of the monoterpene glycoside secologanin. Liebigs Annalen der Chemie (12): 1241-1246, 1989

6 o acetylmelittoside and other iridoids from castilleja spp. Journal of Natural Products (Lloydia) 54(2): 626-628, 1991