Planta Med 2005; 71(8): 792-794
DOI: 10.1055/s-2005-871227
Letter
© Georg Thieme Verlag KG Stuttgart · New York

Diterpene Glycosides from Egletes viscosa

Dongho Lee1 , 4 , Chen Li1 , Tyler N. Graf1 , Jose Schunke Vigo2 , James G. Graham3 , 5 , Fernando Cabieses2 , Norman R. Farnsworth3 , Geoffrey A. Cordell3 , A. Douglas Kinghorn3 , 6 , David J. Kroll1 , Mansukh C. Wani1 , Nicholas H. Oberlies1
  • 1Natural Products Laboratory, Research Triangle Institute, Research Triangle Park, North Carolina, USA
  • 2Instituto Nacional de Medicina Tradicional (INMETRA), Minesterio de Salud, Jesus Maria, Lima, Peru
  • 3Program for Collaborative Research in the Pharmaceutical Sciences and Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, Chicago, Illinois, USA
  • 4Korea Research Institute of Bioscience and Biotechnology, Daejeon, Korea
  • 5Center for Ethnobiology and Natural Products, Florida International University, University Park Campus, Miami, Florida, USA
  • 6Division of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, The Ohio State University, Columbus, Ohio, USA
Further Information

Publication History

Received: November 11, 2004

Accepted: February 2, 2005

Publication Date:
11 August 2005 (online)

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Abstract

A phytochemical investigation of the CHCl3-soluble extract of the entire plant of Egletes viscosa (Asteraceae), collected in Peru, afforded two new labdane glycosides, 13-hydroxy-7-oxolabda-8,14-diene 13(R)-O-α-L-arabinopyranoside and 13-hydroxylabda-7,14-diene 13(R)-O-α-L-arabinopyranoside, along with four known compounds. The structures of the new compounds were elucidated by spectroscopic and chemical methods.

References

Nicholas H. Oberlies

Natural Products Laboratory

Research Triangle Institute

P.O. Box 12194

Research Triangle Park

North Carolina 27709

USA

Fax: +1-919-541-6499

Email: oberlies@rti.org