title: New grayanol diterpenoid and new phenolic glucoside from the flowers of Pieris formosa.
abstract: A new grayanol diterpenoid, grayanotoxin XXII (1), and a new phenolic glucoside, benzyl 2-hydroxy-4-O-[beta-xylopyranosyl(1'' --> 6')-beta-glucopyranosyl]-benzoate (2), were isolated from the flowers of Pieris formosa. Their structures were determined on the basis of spectroscopic analysis and chemical methods.
authors.affiliation: The College of Life Science and Technology, Kunming University of Science and Technology, Kunming, China.
authors.forename: Wei-Guang
authors.initials: WG
authors.lastname: Wang
authors.forename: Hong-Mei
authors.initials: HM
authors.lastname: Li
authors.forename: Hai-Zhou
authors.initials: HZ
authors.lastname: Li
authors.forename: Zhao-Yuan
authors.initials: ZY
authors.lastname: Wu
authors.forename: Rong-Tao
authors.initials: RT
authors.lastname: Li
mesh_terms: D004224:Diterpenes / Q000737:chemistry / Q000302:isolation & purification*; D004365:Drugs, Chinese Herbal / Q000737:chemistry / Q000302:isolation & purification*; D029791:Ericaceae / Q000737:chemistry*; D035264:Flowers / Q000737:chemistry; D005960:Glucosides / Q000737:chemistry / Q000302:isolation & purification*; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D010636:Phenols / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: D004224:Diterpenes; D004365:Drugs, Chinese Herbal; D005960:Glucosides; D010636:Phenols; C549260:benzyl 2-hydroxy-4-O-(beta-xylopyranosyl(1''-6')-beta-glucopyranosyl)benzoate; C549259:grayanotoxin XXII