Results 101 to 110 of about 80,895 (359)

Ethnomedicinal Uses, Phytochemistry, Pharmacological Activities, and Toxicology of the Subfamily Gomphrenoideae (Amaranthaceae): A Comprehensive Review

Chemistry &Biodiversity, EarlyView.
ABSTRACT The subfamily Gomphrenoideae is composed of about 480 accepted species, many of which have been historically used as medicinal plants, reason why they have been studied in terms of chemical profile, biological activity, and safety. This review consolidates the advances in research on this subfamily over the past 47 years, emphasizing its ...
Dayanna Isabel Araque Gelves, Giulia Cristina de Andreoli Souza, Alvaro Jose Hernandez Tasco, Marcos José Salvador   +3 more
wiley   +1 more source

Total Syntheses of (−)-Majucin and (−)-Jiadifenoxolane A, Complex Majucin-Type Illicium Sesquiterpenes

Journal of the American Chemical Society, 2017
We report the first chemical syntheses of both (−)-majucin and (−)-jiadifenoxolane A via 10 net oxidations from the ubiquitous terpene (+)-cedrol. Additionally, this approach allows for access to other majucin-type sesquiterpenes, like (−)-jiadifenolide,
Matthew L Condakes, Kevin Hung, S. Harwood, T. Maimone   +3 more
semanticscholar   +1 more source

Exploring Chemical Variability in the Essential Oil of Artemisia absinthium L. in Relation to Different Phenological Stages and Geographical Location

Chemistry &Biodiversity, EarlyView.
ABSTRACT The plant essential oils (EOs) play a fundamental role in the adaptation to different habitats and environmental conditions. To verify the influence of these factors on the EO of Artemisia absinthium L., we conducted a pharmacognostic study on this species, collected during both the vegetative (V) and flowering (F) stages, in two different ...
Paola Malaspina, Flavio Polito, Andrea Mainetti, Sana Khedhri, Vincenzo De Feo, Laura Cornara   +5 more
wiley   +1 more source

Reactivity of (3-Methylpentadienyl)iron(1+) Cation: Late-stage Introduction of a (3-Methyl-2Z,4-pentadien-1-yl) Side Chain [PDF]

, 2016
The 3-methyl-2Z,4-pentadien-1-yl sidechain is found in various sesquiterpenes and diterpenes. A route for the late stage introduction of this functionality was developed which relies on nucleophilic attack on the (3-methylpentadienyl)iron(1+) cation ...
Chaudhury, Subhabrata, Donaldson, William A., Li, Shukun   +2 more
core   +3 more sources

New Terpenoids from Viguiera dentata: In Silico Pesticide‐Likeness Properties, Acetylcholinesterase Inhibition, Molecular Docking, and Evaluation against Spodoptera frugiperda

Chemistry &Biodiversity, EarlyView.
The chemical analysis of aerial parts of the melliferous Viguiera dentata led to the isolation of 20 substances, including the new cycloartanes 24‐epi‐argentatin C, 7β‐hydroxy‐24‐epi‐argentatin C, 7β‐hydroxy‐argentatin B. In‐combo results indicated that specific argentatins and ent‐kaurenoic acids have the potential to control Spodoptera frugiperda ...
Amira Arciniegas, Olivia Pérez‐Valera, Simón Hernández‐Ortega, Antonio Nieto‐Camacho, Israel Valencia, Joel Daniel Castañeda‐Espinoza, Rodolfo Figueroa‐Brito, José Luis Villaseñor, Guillermo Delgado   +8 more
wiley   +1 more source

Rendimento, composição química e atividades antimicrobiana e antioxidante do óleo essencial de folhas de Campomanesia adamantium submetidas a diferentes métodos de secagem

Revista Brasileira de Plantas Medicinais
RESUMO Campomanesia adamantium é muito utilizada na medicina popular no tratamento de hipertensão, reumatismo e diabetes. Objetivou-se com o presente trabalho avaliar o rendimento, a composição química, e as atividades antimicrobiana e antioxidante do ...
J.D. OLIVEIRA, C.C.F. ALVES, M.L.D. MIRANDA, C.H.G. MARTINS, T.S. SILVA, M.A.L.V. AMBROSIO, J.M. ALVES, J.P. SILVA   +7 more
doaj   +1 more source

Studies on the antifungal and serotonin receptor agonist activities of the secondary metabolites from piezotolerant deep-sea fungus Ascotricha sp.

Mycology, 2019
The potent antifungal agent sesquiterpenes and serotonin 5-HT2C agonist ascotricin were produced by a newly isolated deep-sea fungus Ascotricha sp.
A. Ganesh Kumar, K. Balamurugan, R. Vijaya Raghavan, G. Dharani, R. Kirubagaran   +4 more
doaj   +1 more source

Oxidative Entry into the Illicium Sesquiterpenes: Enantiospecific Synthesis of (+)-Pseudoanisatin.

Journal of the American Chemical Society, 2016
Illicium sesquiterpenes have been the subject of numerous synthetic efforts due to their ornate and highly oxidized structures as well as significant biological activities.
Kevin Hung, Matthew L Condakes, Takahiro Morikawa, T. Maimone   +3 more
semanticscholar   +1 more source

Chemical and antimicrobial analyses of Sideritis romana L. subsp. purpurea (Tal. ex Benth.) Heywood, an endemic of the Western Balkan [PDF]

, 2017
A comprehensive study on essential oil and different solvent extracts of Sideritis romana L. subsp. purpurea (Tal. ex Benth.) Heywood (Lamiaceae) from Montenegro is reported. The gas chromatography-mass spectrometry analysis of the essential oil revealed
Božović, Mijat, Cipolla, Alessia, De Angelis, Massimiliano, Garzoli, Stefania, Oliva, Alessandra, Ragno, Rino, Tadić, Vanja, Vullo, Vincenzo   +7 more
core   +1 more source

Characterization of the Cubamyces Menziesii Terpenome

ChemBioChem, EarlyView.
The genome of Cubamyces menziesii reveals 18 putative sesquiterpene cyclase genes. These genes are cloned and expressed in Escherichia coli, yielding 10 active enzymes. Using farnesyl diphosphate as substrate, the enzymes are analyzed, and the products characterized after bioconversion, uncovering diverse sesquiterpene structures. This study highlights
Létitia Leydet, Julie Couillaud, Agnès Amouric, Elise Courvoisier‐Dezord, Carole Avesque, Thierry Giardina, Mireille Attolini, Pierre Rousselot‐Pailley, Katia Duquesne, Marie‐Noelle Rosso, Gilles Iacazio   +10 more
wiley   +1 more source