Results 41 to 50 of about 12,369 (209)

Synthesis of ([1,2,4]triazolo[4,3-a]pyridin-3-ylmethyl)phosphonates and their benzo derivatives via 5-exo-dig cyclization

Beilstein Journal of Organic Chemistry, 2019
A series of novel 3-methylphosphonylated [1,2,4]triazolo[4,3-a]pyridines was accessed through a 5-exo-dig-type cyclization of chloroethynylphosphonates and commercially available N-unsubstituted 2-hydrazinylpyridines. In addition, 3-methylphosphonylated [
Aleksandr S. Krylov, Artem A. Petrosian, Julia L. Piterskaya, Nataly I. Svintsitskaya, Albina V. Dogadina   +4 more
doaj   +1 more source

SYNTHESIS AND ANTIBACTERIAL EVALUATION OF NEW PYRROLO[3’,4’:3,4]PYRROLO[1,2-a]QUINOLINE AND PYRROLO[3',4':3,4]PYRROLO[2,1-a]ISOQUINOLINE DERIVATIVES

Studia Universitatis Babes-Bolyai Chemia, 2019
Two series of new fused pyrrolo[3’,4’:3,4]pyrrolo[1,2-a]quinoline and pyrrolo[3',4':3,4]pyrrolo[2,1-a]isoquinoline derivatives were synthesized and evaluated for the antimicrobial activity.
Cristina M. AL MATARNEH, Monica C. SARDARU, Mircea O. APOSTU, Irina ROSCA, Catalina I. CIOBANU, Ionel I. MANGALAGIU, Ramona DANAC   +6 more
doaj   +1 more source

Inositol and Berberine Synergistically Reprogram Endocrine and Ovarian Metabolism in Polycystic Ovary Syndrome

Cell Proliferation, EarlyView.
In a DHEA+HFD‐induced mouse model, Ins/BBR alleviated mitochondrial defects and broadly reprogrammed metabolic landscape in granulosa cells, in specific, restoring nucleotide pools and amino acid turnover, and preventing abnormal long‐chain fatty acid accumulation.
Juan Ge, Chenxiang Zhang, Yilong Zhao, Haiyang Zhao, Shuai Zhu, Tao Tang, Guorui Zhang, Qiang Wang, Hui Wang   +8 more
wiley   +1 more source

Biosynthesis of Isoquinoline Alkaloids [PDF]

Planta Medica, 1979
The isoquinoline alkaloids and their biosynthetic relatives include many compounds which show important physiological properties in animals: dopamine, mescaline, morphine, papaverine, and narcotine are pertinent examples. The biosynthetic routes to the members of this family start from the essential aminoacids tyrosine or phenylalanine. Decarboxylation
openaire   +2 more sources

AlkaPlorer: A database‐driven explorer for natural alkaloids and derivatives

Journal of Integrative Plant Biology, EarlyView.
The alkaloid database AlkaPlorer integrates over 130,000 compounds across 12,250 species. By linking chemical structures with biological and evolutionary data, it reveals how these molecules evolve and function. This platform serves as a vital resource for AI‐driven discovery in plant metabolism and modern drug development. ABSTRACT Alkaloids, renowned
Jiahao Li, Tao Zeng, Hongquan Xu, Xu Kang, Minghui Liang, Ruibo Wu   +5 more
wiley   +1 more source

Stable BF2 Boracycles as Versatile Reagents for Selective Ortho C–H Functionalization

Angewandte Chemie, Volume 138, Issue 8, 16 February 2026.
We report a robust, metal‐free and scalable synthesis of stable BF2 boracycles via directed ortho CH borylation, delivering isolable, shelf‐stable reagents without chromatographic purification. These BF2 boracycles exhibit unique and tunable reactivity, enabling highly selective ipso‐functionalization across a broad range of transformations.
Ganesh H. Shinde, Jonatan Babiker, Michelle Mebrahtu, Anaïs Prigent, Gauthier Foucras, Yogesh N. Aher, Francoise M. Amombo Noa, Magnus J. Johansson, Janez Košmrlj, Ross D. Jansen‐van Vuuren, Thomas Cailly, Henrik Sundén   +11 more
wiley   +2 more sources

Poplar miR1447 Is a Negative Regulator of Disease Resistance Through the SA‐Dependent Pathway

Plant Biotechnology Journal, EarlyView.
ABSTRACT Although microRNA1447 (miR1447) regulates poplar responses to abiotic stress and pest infestation, how miR1447 regulates poplar immunity against pathogens and its underlying molecular mechanisms remain to be elucidated. Here, we revealed that miR1447 functioned as a negative regulator of poplar disease resistance against fungal and bacterial ...
Dandan Xiao, Kaijing Rong, Tiantian Fu, Yicheng Li, Chun Wang, Ke Zhou, Ruen Yu, Xiaoqian Yang, Yuzhang Yang, Yuanyuan Wang, Yanwei Wang, Yonglin Wang   +11 more
wiley   +1 more source

Enhanced CO2 Coordinates the Spatial Recruitment of Diazotrophs in Rice Via Root Development

Plant, Cell &Environment, EarlyView.
ABSTRACT Understanding the reciprocal interaction between root development and coadapted beneficial microbes in response to elevated CO2 (eCO2) will facilitate the identification of nutrient‐efficient cultivars for sustainable agriculture. Here, systematic morphological, anatomical, chemical and gene expression assays performed under low‐nitrogen ...
Junwen Zhao, Yuting Chen, Qi Tao, Lukas Schreiber, Kiran Suresh, Michael Frei, Muhammad Shahedul Alam, Bing Li, Yaping Zhou, Marcel Baer, Frank Hochholdinger, Changquan Wang, Peng Yu   +12 more
wiley   +1 more source

Three Closely Related Spodoptera Species Similarly Affect Gene Expression and Phytohormone Levels but Differentially Induce Volatile Emissions in Maize

Plant, Cell &Environment, EarlyView.
ABSTRACT Plants can perceive specific elicitors in the oral secretions (OS) of herbivorous insects and respond by increasing their defences. Whether plants can discriminate among similar herbivorous insect species and differentially modulate their defence responses against them is largely unknown.
Wenfeng Ye, Sara Leite Dias, Marine Mamin, Carla C. M. Arce, Ted C. J. Turlings   +4 more
wiley   +1 more source

Isoquinoline Alkaloids as Protein Tyrosine Phosphatase Inhibitors from a Deep-Sea-Derived Fungus Aspergillus puniceus [PDF]

, 2022
Chengmei Liu, Fei-Hua Yao, Xinhua Lu, Xuexia Zhang, Lianxiang Luo, Liang Xiao, Shu‐Hua Qi   +6 more
openalex   +1 more source