Results 31 to 40 of about 9,193 (154)

Discovery of a Novel Diterpene in Brown Propolis from the State of Parana, Brazil

Natural Product Communications, 2016
Propolis is a resinous substance collected by honeybees from certain plant sources. The components of propolis depend on the vegetation of the area in which apiculture is practiced.
Shigemi Tazawa, Yasuko Arai, Sho Hotta, Taichi Mitsui, Hiroshi Nozaki, Kenji Ichihara   +5 more
doaj   +1 more source

Rearranged (4 -> 2)-abeo-clerodane and clerodane diterpenes from Aristolochia chamissonis

, 1999
From stems of Aristolochia chamissonis Duch., five new diterpenes, one rearranged (4 --> 2)-abeo-clerodane and four ent-clerodanes, were isolated. Their structures were determined to be (+)-(4 --> 2)-abeo-kolavelool-3-oic acid, (-)-13-epi-2-oxokolavelool,
Lopes, LMX, Bomm, M. D., Zukerman-Schpector, J., Lucia M.X Lopes, J Zukerman-Schpector, Mauro D Bomm   +5 more
core   +1 more source

Phytotoxic clerodane diterpenes from Salvia miniata Fernald (Lamiaceae)

, 2011
Our ongoing research to identify natural growth inhibitors with diterpene and triterpene skeletons exuding from the surface of the aerial parts of Salvia species led us to study Salvia miniata Fernald.
Fraternale Daniele, Cafaggi Sergio, ROMUSSI G, FRATERNALE, DANIELE, SALIS A, RICCI, DONATA, Giacomelli Emanuela, Damonte Gianluca, Romussi Giovanni, BISIO A, Bisio Angela, Salis Annalisa, GIACOMELLI E, Ricci Donata, DE TOMMASI N., DE TOMMASI, Nunziatina, DAMONTE G, CAFAGGI S, ROMUSSI, GIOVANNI, GIACOMELLI, EMANUELA, Angela Bisio, Nunziatina De Tommasi, Daniele Fraternale, Donata Ricci, CAFAGGI, SERGIO, Sergio Cafaggi, N. De Tommasi, Emanuela Giacomelli, D. Ricci, Giovanni Romussi, Gianluca Damonte, BISIO, ANGELA, Annalisa Salis, D. Fraternale, DAMONTE, GIANLUCA, SALIS, ANNALISA   +35 more
core   +2 more sources

Gênero Baccharis (Asteraceae): aspectos químicos, econômicos e biológicos The Baccharis genus (Asteraceae): chemical, economic and biological aspects

Química Nova, 2005
The Baccharis genus is represented by more than 500 species distributed mainly in the tropical areas of South America. Many of them are extensively used in folk medicine in the treatment or prevention of anemias, inflammations, diabetes and stomach ...
Luiz Gonzaga Verdi, Inês Maria Costa Brighente, Moacir Geraldo Pizzolatti   +2 more
doaj   +1 more source

Antiproliferative Diterpenes from a sp. from the Madagascar dry forest [1]

Natural Product Communications, 2015
An ethanol extract of leaves of the plant species Malleastrum sp. collected in northern Madagascar afforded the new clerodane diterpene 18-oxo-cleroda-3,13-dien-16,15-olide ( 1 ), together with the three known clerodane diterpenes 16,18 ...
Yixi Liu, C. Houston Wiedle, Peggy J. Brodie, Martin W. Callmander, R. Rakotondrajaona, Etienne Rakotobe, Vincent E. Rasamison, David G. I. Kingston   +7 more
doaj   +1 more source

General Methodologies Toward cis-Fused Quinone Sesquiterpenoids. Enantiospecific Synthesis of the epi-Ilimaquinone Core Featuring Sc-Catalyzed Ring Expansion

Molecules, 2017
A stereocontrolled approach to the cis-decalin framework of clerodane diterpenes and biologically active quinone sesquiterpenes is reported. Starting from an inexpensive optically pure tetrahydroindanone, Birch reductive alkylation builds two new ...
Hilan Z. Kaplan, Victor L. Rendina, Jason S. Kingsbury   +2 more
doaj   +1 more source

Mediterranean Propolis from the Adriatic Sea Islands as a Source of Natural Antioxidants: Comprehensive Chemical Biodiversity Determined by GC-MS, FTIR-ATR, UHPLC-DAD-QqTOF-MS, DPPH and FRAP Assay

Antioxidants, 2020
There is no systematic report about propolis chemical biodiversity from the Adriatic Sea islands affecting its antioxidant capacity. Therefore, the samples from the islands Krk, Rab, Pag, Biševo and Korčula were collected. Comprehensive methods were used
Lidija Svečnjak, Zvonimir Marijanović, Piotr Okińczyc, Piotr Marek Kuś, Igor Jerković   +4 more
doaj   +1 more source

Ethnobotanical, Phytochemical, and Pharmacological Properties of the Subfamily Nepetoideae (Lamiaceae) in Inflammatory Diseases

Plants, 2023
Nepetoideae is the most diverse subfamily of Lamiaceae, and some species are well known for their culinary and medicinal uses. In recent years, there has been growing interest in the therapeutic properties of the species of this group regarding ...
Nancy Ortiz-Mendoza, Martha Juana Martínez-Gordillo, Emmanuel Martínez-Ambriz, Francisco Alberto Basurto-Peña, María Eva González-Trujano, Eva Aguirre-Hernández   +5 more
doaj   +1 more source

C-10 oxygenated neo-clerodane diterpenes from Teucrium sandrasicum

, 1996
From the aerial parts of Teucrium sandrasicum, three new C-10 oxygenated neo-clerodane diterpenes were isolated. The structures of the compounds were established by spectral data including spin decoupling, H-1-H-1 COSY, HETCOR, COLOC and NOESY ...
Topcu, G, Topcu, G., Che, Chuntao, Che, CT, Eris, C., Ulubelen, A., Eris, C, Ulubelen, A   +7 more
core   +1 more source

Chemistry and Biological Activities of Terpenoids from Copaiba (Copaifera spp.) Oleoresins

Molecules, 2012
Copaiba oleoresins are exuded from the trunks of trees of the Copaifera species (Leguminosae-Caesalpinoideae). This oleoresin is a solution of diterpenoids, especially, mono- and di-acids, solubilized by sesquiterpene hydrocarbons. The sesquiterpenes and
Jamilly Kelly Oliveira Neves, José Alexsandro da Silva, Paula Cristina Souza Barbosa, Fabiano de Sousa Vargas, Lidiam Maia Leandro, Valdir Florêncio da Veiga-Junior   +5 more
doaj   +1 more source