title: A new strychnobrasiline base of Strychnos mattogrossensis.
abstract: A new strychnobrasiline derivative, 12-hydroxy-10,11-dimethoxystrychnobrasiline 1, has been isolated from the stem barks of Strychnos mattogrossensis. Its structure was established by spectroscopy analysis (1D and 2D NMR, MS, IR, UV) and literature data comparison. Two other known indoline alkaloids were also obtained from the heartwood, 12-hydroxy-11-methoxystrychnobrasiline 2 and strychnobrasiline 3.
authors.affiliation: Departamento de Química, Universidade do Amazonas, Manaus, Brazil. ibelem@osite.com.br
authors.forename: Maria L
authors.initials: ML
authors.lastname: Belem-Pinheiro
authors.forename: Paulo R C
authors.initials: PR
authors.lastname: Couceiro
authors.forename: Arnaldo F I
authors.initials: AF
authors.lastname: Da Rocha
authors.forename: Francisco J Q
authors.initials: FJ
authors.lastname: Monte
authors.forename: José D F
authors.initials: JD
authors.lastname: Villar
mesh_terms: D000470:Alkaloids / Q000737:chemistry / Q000302:isolation & purification*; D001938:Brazil; D006576:Heterocyclic Compounds, 4 or More Rings / Q000737:chemistry / Q000302:isolation & purification*; D026121:Indole Alkaloids / Q000737:chemistry / Q000302:isolation & purification*; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D024301:Plant Bark / Q000737:chemistry; D018547:Plant Stems / Q000737:chemistry; D017550:Spectroscopy, Fourier Transform Infrared; D013237:Stereoisomerism; D031451:Strychnos / Q000737:chemistry*
chemical_list: C469772:12-hydroxy-10,11-dimethoxystrychnobrasiline; C469773:12-hydroxy-11-methoxystrychnobrasiline; D000470:Alkaloids; D006576:Heterocyclic Compounds, 4 or More Rings; D026121:Indole Alkaloids; C103767:strychnobrasiline