The occurrence of polyisoprenoids in the leaves of Sterculia rupestris Benth

Document Type : Original Article

Authors

Department of Pharmacognosy, Faculty of Pharmacy, Assiut, University, Assiut, Egypt

Abstract

Polyisoprenyl acetates with an av. no. of isoprene residues of 9-​12 were isolated from the leaves of Sterculia rupestris Benth. (Sterculiaceae)​.  Spectroscopic anal. revealed that all the polyisoprenyl acetates I (n = 4 - 7)​, were long-​chain homologues with the following sequence of isoprene residues: ω-​trans, two-​trans, five to eight cis and cis-​α-​terminal.