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M9651004.TXT
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1996-03-30
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Document 1004
DOCN M9651004
TI Biologically active flavonoids and terpenoids from Egletes viscosa.
DT 9505
AU Lima MA; Silveira ER; Marques MS; Santos RH; Gambardela MT; Curso de
Pos-Graduacao em Quimica Organica, Departamento de; Quimica Organica e
Inorganica, Laboratorio de Produtos; Naturais, Universidade Federal do
Ceara, Fortaleza, Brazil.
SO Phytochemistry. 1996 Jan;41(1):217-23. Unique Identifier : AIDSLINE
MED/96165758
AB The steam volatile components from the hexane extract of dried flower
buds of Egletes viscosa were identified by gas chromatography-mass
spectrometry as trans-carvyl acetate, cis-carvyl acetate, sabinyl
acetate, verbenyl acetate, cyclopentaethylidene, geranyl acetate and
5-methylfuranone, and trans-pinocarvyl acetate (major component). From
the non-volatile residue, centipedic acid and a novel clerodane
diterpene, 12-acetoxy-hawtriwaic acid lactone, were isolated. From the
ethanol extract, ternatin (4',5-dihidroxy-3,3',7,8-tetramethoxyflavone),
was isolated. Ternatin showed anti-inflammatory, hepatoprotection and
gastroprotection properties, and, according to the NCI protocols, it
showed moderate activity against HIV. The diterpenes showed
antispasmodic activity. Structure determination of these secondary
metabolites was accomplished by spectrometric methods, including 2D NMR,
chemical interconversion and X-ray crystallographic analysis.
DE Anti-Inflammatory Agents, Non-Steroidal/CHEMISTRY/ISOLATION &
PURIF/PHARMACOLOGY Antiviral Agents/*CHEMISTRY/ISOLATION &
PURIF/PHARMACOLOGY Brazil Comparative Study Crystallography, X-Ray
Diterpenes/CHEMISTRY/ISOLATION & PURIF/PHARMACOLOGY
Flavones/*CHEMISTRY/ISOLATION & PURIF/PHARMACOLOGY Human HIV/*DRUG
EFFECTS Medicine, Traditional Models, Molecular Molecular Structure
Nuclear Magnetic Resonance Parasympatholytics/CHEMISTRY/ISOLATION &
PURIF/PHARMACOLOGY Plant Extracts *Plants, Medicinal
Structure-Activity Relationship Support, Non-U.S. Gov't
Terpenes/*CHEMISTRY/ISOLATION & PURIF/PHARMACOLOGY JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).