title: Total assignments of 1H and 13C NMR spectra of isocatalpanol and a derivative of tecomaquinone.
abstract: Isocatalpanol and tecomaquinone I were obtained from roots of Lippia sidoides, a medicinal plant from northeast Brazil. Reduction of tecomaquinone I with NaBH4 yielded a new derivative. Structural elucidation was done on the basis of spectral data, mainly by high-field NMR and electron ionization mass spectrometry.
authors.affiliation: Departamento de Química Orgânica e Inorgânica, Universidade Federal do Ceará, CP 12200, 60451-970 Fortaleza, Ceará, Brazil.
authors.forename: Allana Kellen L
authors.initials: AK
authors.lastname: Santos
authors.forename: Jõao Carlos
authors.initials: JC
authors.lastname: Assunção
authors.forename: Aluisio M
authors.initials: AM
authors.lastname: Fonseca
authors.forename: Otilia D L
authors.initials: OD
authors.lastname: Pessoa
authors.forename: Francisco Jose Q
authors.initials: FJ
authors.lastname: Monte
authors.forename: Telma L G
authors.initials: TL
authors.lastname: Lemos
authors.forename: Raimundo
authors.initials: R
authors.lastname: Braz-Filho
mesh_terms: D002247:Carbon Isotopes; D006576:Heterocyclic Compounds, 4 or More Rings / Q000032:analysis* / Q000737:chemistry* / Q000592:standards; D032411:Lippia / Q000378:metabolism*; D009682:Magnetic Resonance Spectroscopy / Q000379:methods* / Q000592:standards; D008968:Molecular Conformation; D011522:Protons; D012015:Reference Standards; D013764:Tetrahydronaphthalenes / Q000032:analysis* / Q000737:chemistry* / Q000592:standards
chemical_list: D002247:Carbon Isotopes; D006576:Heterocyclic Compounds, 4 or More Rings; D011522:Protons; D013764:Tetrahydronaphthalenes; C502973:isocatalpanol; C502974:tecomaquinone I