title: Norditerpenoid alkaloids from the roots of Delphinium stapeliosum.
abstract: From the roots of Delphinium stapeliosum three new norditerpenoid alkaloids, 14-demethyltuguaconitine (1), 14-deacetyl-14-isobutyrylnudicauline (2), and 14-deacetyl-14-isobutyrylajadine (3), and nine known norditerpenoid alkaloids, delbonine (4), methyllycaconitine (5), 14-deacetylnudicauline (6), ajacine (7), deltatsine (8), delcosine (9), 14-deacetylajadine (10), nudicauline (11), and ajadine (12), were isolated. Structure elucidation and identification were based on NMR and mass spectra.
authors.affiliation: Natural Products Research Laboratory Dr. Alfred Katz, Oberwilerstrasse 9, CH-4054 Basel, Switzerland.
authors.forename: P M
authors.initials: PM
authors.lastname: Shrestha
authors.forename: A
authors.initials: A
authors.lastname: Katz
mesh_terms: D000470:Alkaloids / Q000737:chemistry / Q000302:isolation & purification*; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D015394:Molecular Structure; D010946:Plants, Medicinal / Q000737:chemistry*
chemical_list: D000470:Alkaloids