Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

ent-labdane glycosides from Baccharis pingraea.

C Zdero1, F Bohlmann, H M Niemeyer

  • 1Institute for Organic Chemistry, Technical University of Berlin, F.R.G.

Phytochemistry
|January 1, 1990
PubMed
Summary

Researchers discovered 14 new diterpene glycosides and two desacyl aglycones from Chilean Baccharis pingraea. Structural analysis using high field 1H NMR spectroscopy detailed these novel compounds.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Direct evidence of the use of multiple drugs in Bronze Age Menorca (Western Mediterranean) from human hair analysis.

Scientific reports·2023
Same author

Chemical Responses of Nicotiana tabacum (Solanaceae) Induced by Vibrational Signals of a Generalist Herbivore.

Journal of chemical ecology·2019
Same author

Pollen Types Used by the Native Stingless Bee, Tetragonisca angustula (Latreille), in an Amazon-Chiquitano Transitional Forest of Bolivia.

Neotropical entomology·2018
Same author

Hydroxamic acid glucosides in honeydew of aphids feeding on wheat.

Journal of chemical ecology·2013
Same author

Effect of DIMBOA, an aphid resistance factor in wheat, on the aphid predatorEriopis connexa Germar (Coleoptera: Coccinellidae).

Journal of chemical ecology·2013
Same author

Presence of a hydroxamic acid glucoside in wheat phloem sap, and its consequences for performance ofRhopalosiphum padi (L.) (Homoptera: Aphididae).

Journal of chemical ecology·2013

Area of Science:

  • Phytochemistry
  • Natural Products Chemistry
  • Organic Chemistry

Background:

  • Baccharis pingraea is a plant species known for its diverse chemical constituents.
  • Previous research has identified diterpene glycosides in Baccharis species.
  • Geographical variations in plant secondary metabolites can occur.

Purpose of the Study:

  • To isolate and characterize novel compounds from the aerial parts of Baccharis pingraea collected in Chile.
  • To elucidate the structures of these new natural products.
  • To compare the chemical profile of Baccharis pingraea from Chile with that from Argentina.

Main Methods:

  • Extraction and isolation of compounds from the aerial parts of Baccharis pingraea.
  • Structure elucidation using high-field 1H Nuclear Magnetic Resonance (NMR) spectroscopy.
  • Comparative analysis of chemical constituents between different geographical collections.

Main Results:

  • Isolation of 14 new diterpene glycosides.
  • Isolation of two new desacyl aglycones.
  • Identification of two previously isolated diterpene glycosides.
  • Structural confirmation of all isolated compounds via 1H NMR spectroscopy.

Conclusions:

  • The aerial parts of Chilean Baccharis pingraea are a rich source of novel diterpene glycosides and their aglycones.
  • High-field 1H NMR spectroscopy is a powerful tool for the structural elucidation of complex natural products.
  • Significant chemical differences exist between Baccharis pingraea collections from Chile and Argentina, highlighting the impact of geographical origin on secondary metabolite profiles.

Related Experiment Videos