Extraction and identification of triterpenoids from Pergularia Tomentosa L

Zohra Babaamer; Lakhdar SEkhri; Hala Al-Jaber; Mahmoud Al-Qudah; Musa Abu Zarga

Zohra Babaamer Chemistry Department, University of Jordan, Amman, Jordan,Department of Industrial Chemistry University of Laghouat, Algeria, Faculté des Sciences et de la Technologie et des Sciences de la Matière, Université Kasdi Merbah Ouargla, Ouargla 30000, Algeria
Lakhdar SEkhri Faculté des Sciences et de la Technologie et des Sciences de la Matière, Université Kasdi Merbah Ouargla, Ouargla 30000, Algeria.
Hala Al-Jaber Department of Applied Sciences, Faculty of Engineering Technology, Al-Balqa Applied University Marka, Amman, Jordan.
Mahmoud Al-Qudah Department of Chemistry, Faculty of Science, Yarmouk University, Jordan
Musa Abu Zarga Chemistry Department, University of Jordan, Amman, Jordan

Keywords: P. tomentosa L, Asclepiadaceae, pergularine, 3-epi-Micromeric acid, 16α-hydroxytaraxasterol acetate, taraxasterol acetate, α- amyrine

Abstract

Two new triterpenoids pergularine A and pergularine B [1], along with five known triterpenoids were isolated from the ethanolic extract of the aerial parts of P. tomentosa L.(Asclepiadaceae). The structures of the isolated known compounds were identified as 3-epi-Micromeric acid (1), taraxasterol acetate (2), taraxasterol (3), 16α-hydroxytaraxasterol acetate (4) and α- amyrine (5) and were reported for the first time in the genus Pergularia. Structures were elucidated by chemical and spectroscopic methods (2D-NMR, IR, and MS) and by comparison with literature data.