title: Synthesis, high-resolution NMR spectroscopic analysis, and single-crystal X-ray diffraction of isoxazoline tetracycles.
abstract: Three isoxazoline tetracycles were obtained enantiomerically pure by intramolecular 1,3-dipolar cycloaddition. The characterization of the new compounds was performed by high-resolution 1H and 13C NMR spectroscopy. The relative configuration of the new chiral centers was determined by NOESY experiments and confirmed by single-crystal X-ray structural analysis.
authors.affiliation: Centro de Investigaciones de Hidratos de Carbono (CIHIDECAR), Departamento de Química Orgánica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón II, 3o Piso, C.P. 1428, Argentina.
authors.forename: Mirta L
authors.initials: ML
authors.lastname: Fascio
authors.forename: Angel
authors.initials: A
authors.lastname: Alvarez-Larena
authors.forename: Norma B
authors.initials: NB
authors.lastname: D'Accorso
mesh_terms: D018360:Crystallography, X-Ray; D006576:Heterocyclic Compounds, 4 or More Rings / Q000138:chemical synthesis* / Q000737:chemistry; D007555:Isoxazoles / Q000138:chemical synthesis* / Q000737:chemistry; D019906:Nuclear Magnetic Resonance, Biomolecular; D013237:Stereoisomerism
chemical_list: D006576:Heterocyclic Compounds, 4 or More Rings; D007555:Isoxazoles