title: New cholinesterase inhibiting bisbenzylisoquinoline alkaloids from Cocculus pendulus.
abstract: Phytochemical investigation on Cocculus pendulus (J. R. & G. FORST.) resulted in the isolation of two new and three known bisbenzylisoquinoline alkaloids. The structures of the new alkaloids, kurramine-2'-beta-N-oxide (1) and kurramine-2'-alpha-N-oxide (2), were elucidated with the help of spectroscopic techniques. The cholinesterase inhibitory activities of these bisbenzylisoquinoline alkaloids are reported here for the first time.
authors.affiliation: H.E.J. Research Institute of Chemistry, International Center for Chemical Sciences, University of Karachi, Pakistan.
authors.lastname: Atta-Ur-Rahman
authors.lastname: Atia-Tul-Wahab
authors.forename: Sarfraz Ahmad
authors.initials: SA
authors.lastname: Nawaz
authors.forename: Iqbal M
authors.initials: IM
authors.lastname: Choudhary
mesh_terms: D000470:Alkaloids / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology*; D044182:Benzylisoquinolines / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology*; D002800:Cholinesterase Inhibitors / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology*; D031605:Cocculus; D010936:Plant Extracts / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology; D018514:Plant Structures
chemical_list: D000470:Alkaloids; D044182:Benzylisoquinolines; D002800:Cholinesterase Inhibitors; D010936:Plant Extracts