8.

Cameroonenoside A: A New Antialgal Phenolic Glycoside from Helichrysum cameroonense

Kakam Zanetsie Antoine , Hidayat Hussain, Etienne Dongo , Karsten Krohn and Barbara Schulz

Department of Organic Chemistry, Faculty of Science, University of Yaounde I, P. O. Box 812, Yaounde, Cameroon

Department of Chemistry, Universität Paderborn, Warburger Straße 100, 33098 Paderborn, Germany

Institut für Mikrobiologie, Technische Universität Braunschweig, Spielmannstraße 7, 31806 Braunschweig, Germany

Abstract: Helichrysum cameroonense is known for its medicinal value . This paper deals with a phytochemical investigation of this species, from which cameroonenoside A (1), a new cinnamic acid glycoside ester has been isolated. Its structure was determined by comprehensive analyses of its 1H and 13C NMR, COSY, HMQC, and HMBC spectroscopic, and HREIMS mass spectrometric data. Preliminary studies showed that cameroonenoside A (1) showed algicidal activity against Chlorella fusca

Keywords: Cinnamic acid glycoside ester; Helichrysum cameroonens; algicidal .