Sesquiterpenos de Ocotea lancifolia (Lauraceae) [PDF]
Química Nova, 2013 Six new eremophilane sesquiterpenes, (rel)-4β,5β,7β-eremophil-9-en-12-oic acid (1), (rel)-4β,5β,7β-eremophil-1(10)-en-12-oic acid (2), (rel)-4β,5β,7β-eremophil-1(10)-en-2-oxo-12-oic acid (3), (rel)-4β,5β,7β-eremophil-9-en-12,8α-olide (4), (rel)-4β,5β,7β ...
Maria José de Camargo +5 more
doaj +3 more sources
A síntese dos sesquiterpenos baquenolidas The synthesis of the bakkenolide sesquiterpenes [PDF]
Química Nova, 2008 The bakkenolide group of sesquiterpenes has been a focal point of synthetic efforts amongst several research laboratories all linked to our common origins at the Chemistry Institute at the State University in São Paulo.
Timothy John Brocksom +2 more
doaj +5 more sources
Flavonoides e sesquiterpenos de Croton pedicellatus Kunth [PDF]
Química Nova, 2012 The chemical investigation of the ethanolic extract from leaves of Croton pedicellatus yielded the bis-nor-sesquiterpenes blumenol A and blumenol A glucoside, along with the flavonoids: tiliroside, 6"-O-p-coumaroyl-β-galactopyranosyl- kaempferol, 6"-O-p ...
Elton Luz Lopes +4 more
doaj +3 more sources
Sesquiterpenos de sementes de Guarea guidonia (Meliaceae) [PDF]
Química Nova, 2012 Two new sesquiterpenes 6α-ethoxyeudesm-4(15)-en-1β-ol (1) and (7R*)-5-epi-opposit-4(15)-ene-1β,7-diol (7) were isolated from the seeds of a specimen of Guarea guidonia (Meliaceae).
Luzinátia Ramos Soares +4 more
doaj +3 more sources
Benzoquinonas, hidroquinonas e sesquiterpenos de Auxemma glazioviana Benzoquinones, hydroquinones and sesquiterpenes of Auxemma glazioviana [PDF]
Química Nova, 2005 Two new compounds, 5 and 8, and an epimeric mixture 4a/4b were isolated from hardwood of Auxemma glazioviana. Their structures and relative configurations were determined by modern spectroscopic analysis to be rel-10alpha,11alpha-epoxy-11beta-ethoxy ...
Jose Galberto M. Costa +5 more
doaj +5 more sources
Sesquiterpenos do caule de Pilocarpus riedelianus e atividades sobre microorganismos [PDF]
Química Nova, 2005 Pilocarpus riedelianus was studied in order to obtain compounds with activity against fungi and bacteria. The dichloromethane extract, the most active one, was chromatographed yielding hexane and dichloromethane fractions. Six known sesquiterpenes, a-calacorene, b-calacorene, g-calacorene, cadalene, sesquichamaenol and 1-hydroxy-1,3,5-bisabolatrien-10 ...
Gisleine Guerreiro +9 more
doaj +6 more sources
Sesquiterpenos das algas marinhas Laurencia Lamouroux (Ceramiales, Rhodophyta) 1: Significado ecológico [PDF]
Química Nova, 1999 The present work is a revision on the ecological significance of the production of sesquiterpenes by the marine algae of the genus Laurencia (Ceramiales, Rhodophyta).
Renato Crespo Pereira +1 more
doaj +4 more sources
Identificação de componentes de óleos voláteis: Análise espectroscópica de misturas de sesquiterpenos [PDF]
Química Nova, 1999 This paper describes a chromatographic method to fractionate volatile oils and to identify their sesquiterpenic constituents. The fractionation process includes flash chromatography over silica gel and chromatography over silica gel/AgNO3, utilising pentane, CH2Cl2 and/or acetone as eluents.
Cláudia B. Brochini +5 more
doaj +4 more sources
Sesquiterpenos e outros constituintes das folhas de Pterodon pubescens Benth (Leguminosae)
Química Nova, 2014 In addition to β-sitosterol, stigmasterol, phaeophitin A, luteolin, kaempferol, quercetin, (+)-catechin, quercetin-3-O-α-L-rhamnopyranoside, rutin, and p-hydroxy-benzoic acid, six known sesquiterpenes, namely (rel)-2β,6β-epoxy-5β-hydroxy-isodaucane ...
Mayker Lazaro Dantas Miranda +3 more
doaj +3 more sources
Sesquiterpenos produzidos pelo fungo endofítico Phomopsis cassiae com atividade antifúngica e inibidora de acetilcolinesterase [PDF]
Química Nova, 2012 SESQUITERPENES PRODUCED BY ENDOPHYTIC FUNGUS Phomopsis cassiae WITH ANTIFUNGAL AND ACETYLCHOLINESTERASE INHIBITION ACTIVITIES. Two new diastereoisomeric cadinanes sesquiterpenes 3,9-dihydroxycalamenene (1-2), along with the known 3-hydroxycalamen-8-one ...
Lisinéia M. Zanardi +8 more
doaj +4 more sources