title: Cyathenosin A, a spiropyranosyl derivative of protocatechuic acid from Cyathea phalerata.
abstract: Cyathenosin A, a spiropyranosyl derivative of protocatechuic acid was isolated from the stem pith of Cyathea phalerata Mart. Its structure was determined by MS, 1D and 2D NMR spectroscopic analyses and confirmed by single crystal X-ray analysis. Cyathenosin A is the first example of a naturally occurring compound containing a spirocyclic orthoester pyranosidic structure.
authors: Laboratório de Produtos Naturais e Cristalografia, Departamento de Química, Universidade Federal de Santa Catarina, 88040-900 Florianópolis, Brazil. mgpizzo@qmc.ufsc.br
authors: Moacir Geraldo
authors: MG
authors: Pizzolatti
authors: Ines Maria Costa
authors: IM
authors: Brighente
authors: Adailton João
authors: AJ
authors: Bortoluzzi
authors: Jan
authors: J
authors: Schripsema
authors: Luiz Gonzaga
authors: LG
authors: Verdi
mesh_terms: D029624:Ferns / Q000737:chemistry*; D062385:Hydroxybenzoates / Q000737:chemistry* / Q000302:isolation & purification; D008958:Models, Molecular; D015394:Molecular Structure; D009005:Monosaccharides; D018547:Plant Stems / Q000737:chemistry; D013141:Spiro Compounds
chemical_list: D062385:Hydroxybenzoates; D009005:Monosaccharides; D013141:Spiro Compounds; C521314:cyathenosin A; C009091:protocatechuic acid