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New steroidal alkaloids from Buxus longifolia
Atta-ur-Rahman1, F Noor-e-ain, M I Choudhary
1H.E.J. Research Institute of Chemistry, University of Karachi, Pakistan. att@hejfirst%uunet.uu.net
Journal of Natural Products
|November 14, 1997
Abstract:
Four new steroidal alkaloids, (+)-cyclovirobuxeine F (1), N-benzoyl-O-acetylbuxalongifoline (2), buxasamarine (3), and (+)-cyclobuxamidine (4), along with two known steroidal bases, 16 alpha-acetoxybuxabenzamidienine (5) and trans-cyclosuffrobuxinine (6), were isolated from the leaves of Buxus longifolia. The alkaloids 1-4 showed significant antibacterial activity.