title: Stemocurtisine, the first pyrido[1,2-a]azapine Stemona alkaloid.
abstract: A new pentacyclic stemona alkaloid, stemocurtisine (2), with a novel pyrido[1,2-a]azapine A,B-ring system, has been isolated from a root extract of Stemona curtisii. The structure and relative stereochemistry was determined by spectral data interpretation and X-ray crystallography.
authors.affiliation: Division of Environmental Sciences, Chiang Mai University, Chiang Mai 50202, Thailand.
authors.forename: Pitchaya
authors.initials: P
authors.lastname: Mungkornasawakul
authors.forename: Stephen G
authors.initials: SG
authors.lastname: Pyne
authors.forename: Araya
authors.initials: A
authors.lastname: Jatisatienr
authors.forename: Damrat
authors.initials: D
authors.lastname: Supyen
authors.forename: Wilford
authors.initials: W
authors.lastname: Lie
authors.forename: Alison T
authors.initials: AT
authors.lastname: Ung
authors.forename: Brian W
authors.initials: BW
authors.lastname: Skelton
authors.forename: Allan H
authors.initials: AH
authors.lastname: White
mesh_terms: D000470:Alkaloids / Q000737:chemistry* / Q000302:isolation & purification*; D018360:Crystallography, X-Ray; D005663:Furans / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D006576:Heterocyclic Compounds, 4 or More Rings / Q000737:chemistry* / Q000302:isolation & purification*; D008968:Molecular Conformation; D015394:Molecular Structure; D018517:Plant Roots / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D041901:Stemonaceae / Q000737:chemistry*; D013785:Thailand
chemical_list: D000470:Alkaloids; D005663:Furans; D006576:Heterocyclic Compounds, 4 or More Rings; C480054:stemocurtisine