title: Phenolic derivatives from the leaves of Martinella obovata (Bignoniaceae).
abstract: A new phenolic derivative, 4-methoxyphenol 1-O-beta-D-apiofuranosyl-(1 --> 6)-O-beta-D-glucopyranoside (1), has been identified together with uncommon 3,4-dimethoxyphenol 1-O-beta-D-apiofuranosyl-(1 --> 6)-O-beta-D-glucopyranoside (2) and 3-hydroxy, 4-methoxyphenol 1-O-beta-D-apiofuranosyl-(1 --> 6)-O-beta-D-glucopyranoside (3) from the leaves of Martinella obovata (Kunth) Bureau & K. Schum., an Honduran species used in folk medicine for the treatment of eyes diseases. Verbascoside, isoverbascoside, leucoceptoside A, vitexin, isovitexin, luteolin 8-C-beta-D-glucopiranoside and spireoside were also found. All structures were elucidated on the basis of mass spectrometry and 2D NMR techniques.
authors.affiliation: Departamento de Control Químico, Facultad de Farmacia, Universidad Nacional Autonoma - Tegucigalpa, Honduras. anarevalohn23@yahoo.com
authors.forename: Carolina
authors.initials: C
authors.lastname: Arevalo
authors.forename: Ines
authors.initials: I
authors.lastname: Ruiz
authors.forename: Anna Lisa
authors.initials: AL
authors.lastname: Piccinelli
authors.forename: Luca
authors.initials: L
authors.lastname: Campone
authors.forename: Luca
authors.initials: L
authors.lastname: Rastrelli
mesh_terms: D029402:Bignoniaceae / Q000737:chemistry*; D005960:Glucosides / Q000737:chemistry / Q000302:isolation & purification*; D006721:Honduras; D019906:Nuclear Magnetic Resonance, Biomolecular; D018515:Plant Leaves / Q000737:chemistry; D021241:Spectrometry, Mass, Electrospray Ionization
chemical_list: D005960:Glucosides