title: Alkaloidal constituents of Tinospora crispa.
abstract: Phytochemical investigations of the stems of Tinospora crispa led to the isolation of one new aporphine alkaloid, N-formylasimilobine 2-O-beta-D-glucopyranoside (1), along with six known alkaloids, N-formylasimilobine 2-O-beta-D-glucopyranosyl-(1 --> 2)-beta-D-glucopyranoside (2) (tinoscorside A), N-formylanonaine (3), N-formyldehydroanonaine (4), N-formylnomuciferine (5), N-demethyl-N-formyldehydronornuciferine (6), magnoflorine (7), paprazine (8), N-trans-feruloyltyramine (9), and cytidine (10). The structure of new compound 1 was deduced on the basis of spectroscopic data.
authors.affiliation: H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi-75270, Pakistan. hej@cyber.net.pk
authors.forename: M Iqbal
authors.initials: MI
authors.lastname: Choudhary
authors.forename: Muhammad
authors.initials: M
authors.lastname: Ismail
authors.forename: Zulfiqar
authors.initials: Z
authors.lastname: Ali
authors.forename: Khozirah
authors.initials: K
authors.lastname: Shaari
authors.forename: Nordin H
authors.initials: NH
authors.lastname: Lajis
authors.lastname: Atta-ur-Rahman
mesh_terms: D000470:Alkaloids / Q000737:chemistry*; D015394:Molecular Structure; D018547:Plant Stems / Q000737:chemistry; D031610:Tinospora / Q000737:chemistry*
chemical_list: D000470:Alkaloids