Results 11 to 20 of about 852 (122)

Nocapyrones: α- and γ-Pyrones from a Marine-Derived Nocardiopsis sp. [PDF]

Marine Drugs, 2014
One new α-pyrone (nocapyrone R (1)), and three known γ-pyrones (nocapyrones B, H and L (2–4)) were isolated from the culture extract of a Nocardiopsis strain collected from marine sediment.
Youngju Kim, Hiromu Ogura, Kazuaki Akasaka, Tsutomu Oikawa, Nobuyasu Matsuura, Chiaki Imada, Hisato Yasuda, Yasuhiro Igarashi   +7 more
doaj   +3 more sources

From insect to man: Photorhabdus sheds light on the emergence of human pathogenicity [PDF]

, 2015
Photorhabdus are highly effective insect pathogenic bacteria that exist in a mutualistic relationship with Heterorhabditid nematodes. Unlike other members of the genus, Photorhabdus asymbiotica can also infect humans.
A Mortazavi, A Mouammine, A Tala, A Vilcinskas, AH Bishop, AJ Dowling, AJ Wolfe, AK Heroven, AL Kullas, Alexia Hapeshi, AM Nuss, AO Brachmann, AS Weissfeld, B Reichenbach, C Scotti, CP Silva, D Hultmark, DA Kimbrell, E Buscato, E Krin, E Krin, FI Nollmann, Friederike I. Nollmann, G Felfoldi, G Mulley, G Yang, Geraldine Mulley, HB Bode, Helge B. Bode, Isabella Vlisidou, J Fan, J Gerrard, J Li, Jean van den Elsen, JG Gerrard, JG Gerrard, JM Crawford, JR Roth, JS Gunn, K Herbst, K Hu, K Meylaers, Kathryn. L. Plichta, KL Meibom, KM Lee, KS Lilley, KS Smith, L Zhao, M Fischer-Le Saux, M Kronenwerth, M Marceau, M Marceau, MA Seelen, ME Konkel, Michael L. Beeton, Mikael Skurnik, ML Urbanowski, MV Grosso-Becera, N Waterfield, N Waterfield, Nicholas R. Waterfield, Nick J. Tobias, Nina Ockendon-Powell, NJ Croucher, NR Waterfield, NR Waterfield, P Tailliez, P Wilkinson, P Wilkinson, Paul Wilkinson, PJ Daborn, PJ Daborn, R Feret, R Medzhitov, RA Orozco, Richard H. ffrench-Constant, RJ Watson, RM Stark, RT Jones, S Anders, S Brameyer, S Brameyer, S Kurashige, SA Joyce, SC Costa, SE Reynolds, SW Fuchs, T Ferreira, T Mignot, TD Read, TE Sandberg, U Theopold, V Sharma, WH Richardson, Y Abu Kwaik, YJ Zhang, Z Ning   +96 more
core   +8 more sources

Humic acid from Shilajit – a physico-chemical and spectroscopic characterization [PDF]

, 2009
Shilajit is a blackish–brown exudation, consisting of organic substances, metal ions and minerals, from different formations, commonly found in the Himalayan region (1000–3000 m) from Nepal to Kashmir.
ASGAR ALI, M. D. KHALID ANWER, RAJESH KHANNA, SURAJ P. AGARWAL, YASMIN SULTANA   +4 more
core   +1 more source

Coumarins, Xanthones and Related Compounds

Molecules, 2016
It has long been known that coumarins (γ-pyrones) and xanthones (α-pyrones) together form a large class of naturally occurring compounds exhibiting a wide range of biological activities.[...]
Pascal Richomme
doaj   +1 more source

Synthesis and antibacterial activities of enamine derivatives of dehydroacetic acid [PDF]

, 2017
Dehydroacetic acid is a common pyrone derivative used commercially as an antibacterial and antifungal agent. Based on the synthesis of dehydroacetic acid (1) from N-hydroxysuccinimdyl acetoacetate, a novel series of enamine-based derivatives were ...
Baldwin, Alex, Bevan, Jonathan, Brough, David, Freeman, Sally, Ledder, Ruth   +4 more
core   +2 more sources

Tetraketide alpha-pyrone reductases in sporopollenin synthesis pathway in Gerbera hybrida : diversification of the minor function [PDF]

, 2021
The structurally robust biopolymer sporopollenin is the major constituent of the exine layer of pollen wall and plays a vital role in plant reproductive success.
Teeri, Teemu H., Zhang, Teng, Zhu, Lingping   +2 more
core   +1 more source

Higginsianins A and B, two fungal diterpenoid α-pyrones with cytotoxic activity against human cancer cells [PDF]

, 2019
Two new diterpenoid α-pyrones, named higginsianins A and B, were isolated from the mycelium of the microbial fungus Colletotrichum higginsianum grown in liquid culture.
Calabrò, Viola, Cimmino, Alessio, Evidente, Antonio, Masi, Marco, Pollice, Alessandra, Ravindra, Peravali, Sangermano, Felicia, Vivo, Maria   +7 more
core   +1 more source

Pd/C-Catalyzed Intramolecular C–H Arylation for the Synthesis of Phenanthridinones and Dibenzo-α-pyrones

SynOpen, 2017
Pd/C was found to be an efficient and convenient metal catalyst for intramolecular C–H arylation reactions in the synthesis of phenanthridinones and dibenzo-α-pyrones. A variety of phenanthridinones and dibenzo-α-pyrones were synthesized under the highly
Lingyu Zhao, Guodong Shen, Tongxin Zhang, Zhen Wang, Yuhua Liang   +4 more
doaj   +1 more source

Molecular Docking of Cryptoconcatones to α-Tubulin and Related Pironetin Analogues

Plants, 2023
Cryptoconcatones A-L represent a series of 12 dihydropyrone derivatives isolated from the evergreen tree Cryptocarya concinna Hance, which is well distributed in southeast Asia.
Gérard Vergoten, Christian Bailly
doaj   +1 more source

Sulfur-containing benzofurans and α-pyrones from the mangrove-derived fungus Talaromyces sp. WHUF0341

Frontiers in Marine Science, 2022
Two new sulfur-containing benzofurans, talarobenzofurans A and B (1 and 2), one new benzofuran talarobenzofuran C (3) and two new α-pyrones talaropyrones A and B (5 and 6), along with five known compounds eurothiocin A (4), nodulisporipyrone A (7 ...
Ruohan Zhang, Ruohan Zhang, Jinxin Zhang, Jinxin Zhang, Ruiyun Huo, Ruiyun Huo, Yaxin Xue, Kui Hong, Ling Liu, Ling Liu   +9 more
doaj   +1 more source