Carvone
Mostrando 13-24 de 46 artigos, teses e dissertações.
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13. Estudo Comparativo entre os Enantiômeros da Carvona em Modelos de Inflamação Aguda e de Hipersensibilidade Imediata
Enantiômeros são compostos assimétricos que apresentam a particularidade de serem imagens especulares um do outro, não sobreponíveis e por terem comportamentos diferentes em ambientes quirais, resultando frequentemente na discriminação esterioseletiva e diferentes efeitos biológicos. A carvona é um monoterpeno, constituinte de muitos óleos essencia
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/02/2011
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14. Metátese de fechamento de anel: espiro-anelação estereosseletiva / Reações multicomponentes de Diels-Alder na síntese de compostos tricíclicos
In this work, a study of different synthetic ways was made in order to obtain spiro compounds starting from R-(-)-carvone, getting to the formation of cycloheptenone as an intermediate, which undergoes two consecutives alkylations to the formation of a bis alkylated compound which would be submitted to a ring closing metathesis and consequently reaching the
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 22/02/2011
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15. Antiulcer effect of epoxy-carvone
Epoxy-carvone is a monoterpene present in essential oils of various plants. It is a derivative of carvone, which has an epoxy group instead of the α- and β-unsaturated ketone group present in carvone. As recent studies have shown that several alcohol terpenes and compounds containing α, β-unsaturated ketone groups present antiulcer effect, the main of th
Revista Brasileira de Farmacognosia. Publicado em: 23/09/2011
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16. Antispasmodic effects of Aloysia polystachya and A. gratissima tinctures and extracts are due to non-competitive inhibition of intestinal contractility induced by acethylcholine and calcium
The antispasmodic effects of acqueous extracts (AE) and tinctures (T) of Aloysia polystachya (Griseb.) Moldenke and Aloysia gratissima (Gillies & Hook.) Tronc., Verbenaceae, were studied on rat isolated ileum and duodenum. These plants are used for gastrointestinal disorders and as eupeptic in South America. Both AE non-competitively inhibited the dose-respo
Revista Brasileira de Farmacognosia. Publicado em: 12/08/2011
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17. Chemical composition and antigenotoxic properties of Lippia alba essential oils
The present work evaluated the chemical composition and the DNA protective effect of the essential oils (EOs) from Lippia alba against bleomycin-induced genotoxicity. EO constituents were determined by Gas Chromatography/Mass Spectrometric (GC-MS) analysis. The major compounds encountered being citral (33% geranial and 25% neral), geraniol (7%) and trans-β-
Genetics and Molecular Biology. Publicado em: 29/07/2011
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18. Chemical composition and effect of an essential oil of Salix aegyptiaca L., Salicaceae, (musk willow) in hypercholesterolemic rabbit model
The essential oils (EO) of Salix aegyptiaca L., Salicaceae (SA), leaves were extracted using the hydrodistillation method and their chemical composition was further determined by GC-MS. 1,4-Dimethoxybenzene was the main isolated compound. Other major isolated constitutes were phenylethyl alcohol, carvone, citronellol, methyleugenol, eugenol, n-tetradecane an
Revista Brasileira de Farmacognosia. Publicado em: 04/03/2011
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19. Chemical composition and antiprotozoal activities of Colombian Lippia spp essential oils and their major components
The chemical composition and biological activities of 19 essential oils and seven of their major components were tested against free and intracellular forms of Leishmania chagasi and Trypanosoma cruzi parasites as well as Vero and THP-1 mammalian cell lines. The essential oils were obtained from different species of Lippia, a widely distributed genus of Colo
Memórias do Instituto Oswaldo Cruz. Publicado em: 2010-03
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20. Study of antinociceptive and antiinflammatory monoterpene a,b-epoxy-carvone and its effect on glutamatergic neurotransmission. / Estudo da atividade antinociceptiva e anti-inflamatória do monoterpeno a,b-Epoxi-carvona e seu efeito sobre a neurotransmissão glutamatérgica
The a, b-epoxy-carvone (EC) monoterpene is found in many essential oils from plants, but can also be obtained through organic synthesis from the R-(-)-carvone. Previous studies have demonstrated that this compound exerts depressant effect on central nervous system (CNS), and is also known to have anticonvulsant effects, antioxidant and antimicrobial activiti
Publicado em: 2010
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21. Chiral auxiliary-mediated enantioenrichment of (±)-ibuprofen, under steglich conditions, with secondary alcohols derived from (R)-carvone
A síntese de uma série de álcoois secundários derivados da (R)-carvona, assim como o curso estereoquímico da esterificação destes derivados com (±)-ibuprofeno é apresentada. O composto comercial racêmico foi transformado nos respectivos ésteres diastereoisoméricos através do acoplamento mediado por DCC/DMAP, fornecendo o par de diastereoisômero
Journal of the Brazilian Chemical Society. Publicado em: 2010
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22. (R)-(-)-carvone and (1R, 4R)-trans-(+)-dihydrocarvone from poiretia latifolia vogel
Os óleos essenciais de folhas de Poiretia latifolia Vogel nativas e cultivadas (amostras A e B, respectivamente) e de flores nativas (amostra C), foram obtidos por hidrodestilação e analisados por CG, CG/EM, e através de cromatografia gasosa em fase quiral (CGFQ). Vinte e quatro componentes foram identificados, representando 99,25, 99,26 e 99,23% dos ól
Journal of the Brazilian Chemical Society. Publicado em: 2010
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23. GERMPLASM CHARACTERIZATION AND SEASONAL VARIATIONS IN LIPPIA ALBA (MILL.) N. E. BR. / CARACTERIZAÇÃO DE GERMOPLASMA E SAZONALIDADE EM ERVACIDREIRA-BRASILEIRA [LIPPIA ALBA (MILL.) N. E. BR.].
Lippia alba (Mill.) N. E. Br. is a medicinal plant widely distributed and used in Brazil, because of its sedative activity of the essential oil. This study aimed to characterize and evaluate the behavior of accessions of Lippia alba (Mill.) N. E. Br., collected in several states of Brazil, and maintained in the Active Germplasm Bank of the Federal University
Publicado em: 2010
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24. Atividade antimicrobiana do óleo essencial de diferentes acessos de Mentha spp. contra Candida albicans e Candida dubliniensis / Antimicrobial activity of essential oils from different accessions of Mentha spp. against Candida albicans and Candida dubliniensis
The aim of this study was to evaluate the antimicrobial activity of essential oils and fractions of different accessions of Mentha spp. against Candida spp., identifying compounds and verifying its cytotoxicity.The essential oils of 64 different accessions of Mentha spp. were extracted using the fresh aerial parts of the plant by hydrodistillation cleavenger
Publicado em: 2010