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Organic Letters, 2014
Four new isomeric sesquiterpene lactone dimers, carpedilactones A-D (1-4), were isolated from the acetonic extract of Carpesium faberi. Among them, 1-3 are the first three 2,4-linked exo-Diels-Alder adducts between a eudesmanolide dienophile and a ...
Yong-xun Yang +8 more
semanticscholar +1 more source
Four new isomeric sesquiterpene lactone dimers, carpedilactones A-D (1-4), were isolated from the acetonic extract of Carpesium faberi. Among them, 1-3 are the first three 2,4-linked exo-Diels-Alder adducts between a eudesmanolide dienophile and a ...
Yong-xun Yang +8 more
semanticscholar +1 more source
The first sesquiterpene lactones esterified with a sesquiterpenic acid
Phytochemistry, 1981Abstract From Hypochoeris glabra two guaianolides esterified with an unusual sesquiterpenic acid were isolated. Proton-catalysed rearrangement of the cyclopropane derivative led to a phenolic acid. The structures were elucidated by high-field 1 H NMR spectroscopy. Further guaianolides were isolated from H. uniflora and Lactuca floridana . These
Wolf-Rainer Abraham +3 more
openaire +2 more sources
, 2015
Six new 2,4-linked exo/endo sesquiterpene lactone dimers, faberidilactones A–E (1–5) and endodischkuhriolin (6), were isolated from Carpesium faberi. The characteristic chemical shift of Ha-3′ and diagnostic negative/positive CE can be used to assign the
Yong-xun Yang +7 more
semanticscholar +1 more source
Six new 2,4-linked exo/endo sesquiterpene lactone dimers, faberidilactones A–E (1–5) and endodischkuhriolin (6), were isolated from Carpesium faberi. The characteristic chemical shift of Ha-3′ and diagnostic negative/positive CE can be used to assign the
Yong-xun Yang +7 more
semanticscholar +1 more source
Sesquiterpene lactones from Lugoa revoluta
Biochemical Systematics and Ecology, 20010 ...
Jorge Triana +5 more
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Collection of Czechoslovak Chemical Communications, 1991
11,13-Methylene derivatives of sesquiterpene exomethylene-γ-lactones were prepared by reaction of diazomethane and photolysis of the resulting pyrazoline adduct(s). Variable amounts of exomethylene- and ethylidene-γ-lactones were also formed in the photolysis reaction.
G. APPENDINO +3 more
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11,13-Methylene derivatives of sesquiterpene exomethylene-γ-lactones were prepared by reaction of diazomethane and photolysis of the resulting pyrazoline adduct(s). Variable amounts of exomethylene- and ethylidene-γ-lactones were also formed in the photolysis reaction.
G. APPENDINO +3 more
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Journal of Integrative Medicine, 2013
OBJECTIVE Deoxyelephantopin, a sesquiterpene lactone from Elephantopus scaber, showed inhibition of the growth of various tumor cells in vitro. In the present study, we investigated the cytotoxicity and apoptosis-inducing capacity of deoxyelephantopin on
F. A. Kabeer +6 more
semanticscholar +1 more source
OBJECTIVE Deoxyelephantopin, a sesquiterpene lactone from Elephantopus scaber, showed inhibition of the growth of various tumor cells in vitro. In the present study, we investigated the cytotoxicity and apoptosis-inducing capacity of deoxyelephantopin on
F. A. Kabeer +6 more
semanticscholar +1 more source
Sesquiterpene lactones ofFerula olgae
Chemistry of Natural Compounds, 19751. Six sesquiterpene lactones have been isolated fromFerula olgae Regel et Schmalh. Three of them have been identified with talassins A and B and 4-acetoxypruteninone, which have been described previously.
K. S. Rybalko +2 more
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Sesquiterpene lactones of Eupatorium scabridum
Phytochemistry, 1982Abstract Eupatorium scabridum , a hybrid biotype presumed to arise by hybridization of E. rotundifolium and E. semiserratum furnished anti-tumor sesquiterpene lactones characteristic of the putative parents.
Werner Herz, Palianappan Kulanthaivel
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Amino -derivatives of the sesquiterpene lactone class of natural products as prodrugs
, 2013The sesquiterpene lactone class of natural products displays a diverse array of biological activities due to the presence of the α-methylene-γ-lactone motif. However, clinical translation of this class has been hampered by poor aqueous solubility and non-
J. Woods +4 more
semanticscholar +1 more source
Structure of ratibinolide, a sesquiterpene lactone
Acta Crystallographica Section C Crystal Structure Communications, 1990AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
A. Rojas +3 more
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