Results 21 to 30 of about 31,846 (218)

Moroccan propolis: a natural antioxidant, antibacterial, and antibiofilm against Staphylococcus aureus with no induction of resistance after continuous exposure [PDF]

, 2018
This study was performed to evaluate the total phenols, flavonoids, and antioxidant activities of twenty-four propolis samples from different regions of Morocco.
AAZZA, Smail, Bankova, Vassya, EL-GEUNDOUZ, Soukaina, Faleiro, Maria Leonor, Lyoussi, Badiaa, Miguel, Maria, Neto, Luís, Popova, Milena   +7 more
core   +1 more source

Some progress on the chemistry of natural bioactive terpenoids form Chinese medicinal plants

Memorias do Instituto Oswaldo Cruz, 1991
(1) Pseudolaric acids - Novel diterpenes, Pseudolaric acid A, B, C and D were isolated from Pseudolarix kaempferi Gorden (pinaceae). Their structures were assigned by spectroscopic data and chemical correlations.
Bing-Nan Zhou
doaj   +1 more source

Characterization of phloroglucinol derivatives and diterpenes in Euphorbia ebracteolata Hayata by utilizing ultra-performance liquid chromatography/quadrupole time-of-flight mass spectrometry

Journal of Pharmaceutical Analysis, 2013
Euphorbia ebracteolata Hayata (E. ebracteolata) is a Chinese herbal medicine used for the treatment of tumor diseases. An ultra-performance liquid chromatography/quadrupole time-of-flight mass spectrometry (UPLC–Q–TOF/MS) based chemical profiling ...
Can-Jian Wang, Ying-Qiao Jiang, Dong-Hui Liu, Xiao-Hong Yan, Shuang-Cheng MA   +4 more
doaj   +1 more source

Diterpenes from the Marine Algae of the Genus Dictyota

Marine Drugs, 2018
Species of the brown algae of the genus Dictyota are rich sources of bioactive secondary metabolites with diverse structural features. Excellent progress has been made in the discovery of diterpenes possessing broad chemical defensive activities from ...
Jiayun Chen, Hong Li, Zishuo Zhao, Xue Xia, Bo Li, Jinrong Zhang, Xiaojun Yan   +6 more
doaj   +1 more source

Unified short syntheses of oxygenated tricyclic aromatic diterpenes by radical cyclization with a photoredox catalyst

Communications Chemistry, 2023
The biomimetic two-phase strategy employing polyene cyclization and subsequent oxidation/substitution is an effective approach for divergent syntheses of [6-6-6]-tricyclic diterpenes.
Riichi Hashimoto, Kengo Hanaya, Takeshi Sugai, Shuhei Higashibayashi   +3 more
doaj   +1 more source

Stemarane Diterpenes and Diterpenoids

International Journal of Molecular Sciences, 2019
In this article the scientific activity carried out on stemarane diterpenes and diterpenoids, isolated over the world from various natural sources, was reviewed. The structure elucidation of stemarane diterpenes and diterpenoids was reported, in addition to their biogenesis and biosynthesis.
Leonelli, Francesca, Valletta, Alessio, Migneco, Luisa Maria, Marini Bettolo, Rinaldo   +3 more
openaire   +2 more sources

Contribution of microscopy for understanding the mechanism of action against trypanosomatids [PDF]

, 2018
Transmission electron microscopy (TEM) has proved to be a useful tool to study the ultrastructural alterations and the target organelles of new antitrypanosomatid drugs.
A Martinez-Palomo, A Montalvetti, A Rassi, AB Penissi, AE Eakin, AH Kolien, AJ Solari, AM Sánchez, Ana Yecê das Neves Pinto, C Brack, CF Silva Da, D Gonzalez-Pacanowska, DA Campbell, DA Johnston, DJ Hammond, DV Andrade, E Bontempi, E Lozano, E Lozano, E Lozano, EO Ogbadoiyi, ES Garcia, ES Lozano, F Dos Reis, FR Opperdoes, FR Opperdoes, FR Opperdoes, FS Laranja, H Meyer, H Meyer, J Aldunate, J Lukes, J McKerrow, J Mottram, JA Urbina, JA Urbina, JA Urbina, JA Urbina, JC Engel, JC Linder, JCP Dias, JCP Dias, JD Bergstrom, JD Maya, JF Turrens, JJ Marr, JL Avila, JL Avila, Juliano de Toledo, K Lazardi, K Miranda, K Miranda, KH Lee, L Simpson, LV Muschietti, M Meirelles, M Nieto, MC Elias, MCQB Elias, MR Ariyanayagam, MR Ariyanayagam, NM Sayed El, O Campetella, OS Giordano, OS Giordano, P Barrera, P Webster, PF Pimenta, R Docampo, S Sepúlveda-Boza, SD Brengio, SR Wilkinson, T Souto-Padron, T Souto-Padron, T Souto-Padron, T Souto-Padron, TA Shapiro, TS Tiuman, V Jimenez-Ortiz, V Sülsen, VP Sülsen, VP Sülsen, VV Costantino, W Souza De, W Souza De, W Souza De, W Souza De, W Souza De, W Souza De, Wanderley de Souza, WE Gutteridge   +90 more
core   +1 more source

Microbubbles enhanced synthetic phorbol ester degradation by ozonolysis [PDF]

, 2014
A phorbol-12-myristate-13-acetate (TPA) is a synthetic analogue of phorbol ester (PE), a natural toxic compound of Euphorbiaceae plant. The oil extracted from plants of this family is useful source for primarily biofuel.
Kuvshinov, Dmitriy, Siswanto, Anggun, Zimmerman, William   +2 more
core   +2 more sources

A Review on Bioactivities of Tobacco Cembranoid Diterpenes

Biomolecules, 2019
Cembranoids are carbocyclic diterpenes comprising four isoprene units and are natural products with a parent skeleton consisting of a 14-membered ring.
Ning Yan, Yongmei Du, Xinmin Liu, Hongbo Zhang, Yanhua Liu, Zhongfeng Zhang   +5 more
doaj   +1 more source

Diterpenes from Sideritis argyrea

Fitoterapia, 2001
The known ent-kaurene diterpenes 1-9 and a new ent-labdane, ent-6beta,8alpha-dihydroxylabda-13(16),14-diene (10), were isolated from the whole plant of Sideritis argyrea. Their structures were elucidated based on one- and two-dimensional NMR techniques and HRMS.
Topçu, Gülaçtı, Gören, Ahmet C., Kılıç, Turgut, Yıldız, Yaşar Kemal, Tümen, Gülendam   +4 more
openaire   +5 more sources