Results 31 to 40 of about 1,521 (192)

Identification and Characterization of a New Type III Polyketide Synthase from a Marine Yeast, Naganishia uzbekistanensis

Marine Drugs, 2020
A putative Type III Polyketide synthase (PKSIII) encoding gene was identified from a marine yeast, Naganishia uzbekistanensis strain Mo29 (UBOCC-A-208024) (formerly named as Cryptococcus sp.) isolated from deep-sea hydrothermal vents.
Laure Martinelli, Vanessa Redou, Bastien Cochereau, Ludovic Delage, Nolwenn Hymery, Elisabeth Poirier, Christophe Le Meur, Gaetan Le Foch, Lionel Cladiere, Mohamed Mehiri, Nathalie Demont-Caulet, Laurence Meslet-Cladiere   +11 more
doaj   +1 more source

Contact Allergy Induced by Mango (Mangifera indica): A Relevant Topic?

Medicina, 2021
Introduction: The most common clinical manifestation of mango allergy is contact dermatitis, which can be localized or systemic. The sensitising substances that have long been suspected are alk(en)yl catechols and/or alk(en)yl resorcinols.
Elena Camelia Berghea, Mihai Craiu, Selda Ali, Sabina Loredana Corcea, Roxana Silvia Bumbacea   +4 more
doaj   +1 more source

The Azotobacter vinelandii AlgU regulon during vegetative growth and encysting conditions: A proteomic approach.

PLoS ONE, 2023
In the Pseduomonadacea family, the extracytoplasmic function sigma factor AlgU is crucial to withstand adverse conditions. Azotobacter vinelandii, a closed relative of Pseudomonas aeruginosa, has been a model for cellular differentiation in Gram-negative
Sangita Chowdhury-Paul, Iliana C Martínez-Ortíz, Victoria Pando-Robles, Soledad Moreno, Guadalupe Espín, Enrique Merino, Cinthia Núñez   +6 more
doaj   +1 more source

New Alkylpyridinium Anthraquinone, Isocoumarin, C-Glucosyl Resorcinol Derivative and Prenylated Pyranoxanthones from the Culture of a Marine Sponge-Associated Fungus, Aspergillus stellatus KUFA 2017

Marine Drugs, 2022
An unreported isocoumarin, (3S,4R)-4-hydroxy-6-methoxymellein (2), an undescribed propylpyridinium anthraquinone (4), and an unreported C-glucosyl resorcinol derivative, acetyl carnemycin E (5c), were isolated, together with eight previously reported ...
Fátima P. Machado, Inês C. Rodrigues, Luís Gales, José A. Pereira, Paulo M. Costa, Tida Dethoup, Sharad Mistry, Artur M. S. Silva, Vitor Vasconcelos, Anake Kijjoa   +9 more
doaj   +1 more source

Chemical Composition and Biological Activity of Argentinian Propolis of Four Species of Stingless Bees

Molecules, 2022
The chemical composition of propolis of four species of stingless bees (SLBs) from Argentina was determined, and its antibacterial and anticancer activity was evaluated on selected types of microbes and cancer cell lines.
Valery A. Isidorov, Jolanta Maslowiecka, Lukasz Szoka, Naldo Pellizzer, Dora Miranda, Ewa Olchowik-Grabarek, Monika Zambrzycka, Izabela Swiecicka   +7 more
doaj   +1 more source

2‐Azaazulenium Hemicyanine Dyes for NIR‐II Multimodal Imaging and Combined Phototherapy

Angewandte Chemie, EarlyView.
A strategically engineered class of 2‐azaazulenium hemicyanines is developed, featuring bright fluorescence in the second near‐infrared (NIR‐II) window and multifunctional performance. SWJT‐OCH3 shows type I/II reactive oxygen species (ROS) generation and excellent photothermal activity.
Min Peng, Bing‐Ya Wang, Hai Xu, Qiang Wang, Rong‐Dan Xiao, Rui Tan, Yu Peng, Ya‐Wen Wang, Juyoung Yoon   +8 more
wiley   +2 more sources

Design, Synthesis and Fungicidal Activity of Novel ()-Methyl 2-{2-[(coumarin-7-yloxy)methyl]phenyl}-3-methoxyacrylates

Natural Product Communications, 2007
A number of 7-hydroxycoumarins (5), on treatment with one equivalent of ( E )-methyl 2-{2-[(chloromethyl)phenyl]}-3-methoxyacrylate ( 6 ) at 80°C for 6–8 h, afforded ( E )-methyl 2-{2-[(coumarin-7-yloxy)methyl]phenyl}-3-methoxyacrylates ( 2 ) in 80–85 ...
Chang-Ling Liu, Miao Li, Ai-Ying Guan, Hong Zhang, Zheng-Ming Li   +4 more
doaj   +1 more source

Chiral Dinuclear Vanadium Complex-Mediated Oxidative Coupling of Resorcinols

, 2018
A method for the highly regio- and enantioselective oxidative coupling of resorcinols has been established by using dibrominated dinuclear vanadium­(V) catalyst 1c under air.
Aoki, Takanori, Hiroaki Sasai (1764031), Takanori Aoki (6082196), Takizawa, Shinobu, Lukas Schober (6082199), Zumbrägel, Nadine ; https://orcid.org/, Sako, Makoto, Sasai, Hiroaki, Harald Gröger (1581526), Schober, Lukas, Gröger, Harald, Nadine Zumbrägel (5578532), Shinobu Takizawa (1764043), Makoto Sako (3103950)   +13 more
core   +1 more source

In Search of Catalytic Antioxidants—(Alkyltelluro)phenols, (Alkyltelluro)resorcinols, and Bis(alkyltelluro)phenols

, 2013
The quenching of peroxyl radicals by ortho-(alkyltelluro)phenols occurs by a more complex mechanism than formal H-atom transfer. In an effort to improve on this concept, we have prepared (alkyltelluro)resorcinols and bis(alkyltelluro)phenols and ...
Singh, Vijay P.,, Poon, Jia-fei,, Jia-fei Poon, Lars Engman, Vijay P. Singh, Engman, Lars,   +5 more
core   +1 more source

Synthesis and Bioactivity of Novel Coumarin Derivatives

Natural Product Communications, 2011
A series of coumarin derivatives ( 6-8 ) containing ( E )-methyl 2-(methoxyimino)-2-phenylacetate, ( E )-2-(methoxyimino )-N -methyl-2-phenylacetamide and methyl methoxy(phenyl)carbamate were synthesized from substituted resorcinols ( 1 ) and substituted
Ai-Ying Guan, Chang-Ling Liu, Miao Li, Zhi-Nian Li, Ming-Xing Zhang, Hong Zhang   +4 more
doaj   +1 more source