Novos constituintes químicos das cascas do caule de Tabebuia heptaphylla

Content Provider	Scilit
Author	Garcez, Fernanda Rodrigues Garcez, Walmir Silva Mahmoud, Talal Suleiman de Oliveira Figueiredo, Patrícia Resende, Ubirazilda Maria
Copyright Year	2007
Description	A new triterpene, 3beta,6beta,21beta-trihydroxyolean-12-ene and a new iridoid, 8alpha-methyl-8beta-hydroxy-6beta-(3',4'-dimethoxy)benzoyloxy-1 alpha,3alpha-dimethoxy-octahydro-cyclopenta[c]pyran were isolated from the trunk bark of a specimen of Tabebuia heptaphylla (Bignoniaceae) collected in the "Pantanal" of Mato Grosso do Sul, Brazil. Twelve known compounds were also obtained in this work, comprising four iridoids, 6-O-p-hydroxybenzoylajugol, 6-O-p-methoxybenzoylajugol, 6-O-3",4"-dimethoxybenzoylajugol, 8alpha-methyl-8beta-hydroxy-6beta-(4'-hydroxy)benzoyloxy-1alpha,3 alpha-dimethoxy-octahydro-cyclopenta[c]pyran, a cyclopentene dialdehyde, 2-formyl-5-(3',4'-dimethoxybenzoyloxy)-3-methyl-2-cyclopentene-1-acetaldehyde, a phenylethanoid glycoside, verbascoside and three benzoic acid derivatives, p-hydroxybenzoic, p-methoxybenzoic and 3,4-dimethoxybenzoic acids, in addition to squalene, sitostenone and sitosterol. The antioxidant properties of the isolated compounds were also evaluated in this work
Related Links	http://www.scielo.br/pdf/qn/v30n8/a17v30n8.pdf http://www.scielo.br/scielo.php?script=sci_pdf&pid=S0100-40422007000800017&lng=pt&nrm=iso&tlng=pt
Ending Page	1891
Page Count	5
Starting Page	1887
ISSN	01004042
e-ISSN	01004042
DOI	10.1590/s0100-40422007000800017
Journal	Química Nova
Issue Number	8
Volume Number	30
Language	English
Publisher	FapUNIFESP (SciELO)
Publisher Date	2007-01-01
Access Restriction	Open
Subject Keyword	Química Nova Legal Medicine Novos Constituintes Constituintes Qumicos Das Cascas Tabebuia Heptaphylla Qumicos Das
Content Type	Text
Resource Type	Article
Subject	Chemistry