Results 51 to 60 of about 29,047 (251)

Probing the Influence of Linker Length and Flexibility in the Design and Synthesis of New Trehalase Inhibitors

Molecules, 2018
This work aims to synthesize new trehalase inhibitors selective towards the insect trehalase versus the porcine trehalase, in view of their application as potentially non-toxic insecticides and fungicides.
Giampiero D’Adamio, Matilde Forcella, Paola Fusi, Paolo Parenti, Camilla Matassini, Xhenti Ferhati, Costanza Vanni, Francesca Cardona   +7 more
doaj   +1 more source

Synthesis of dienes from pyrrolidines using skeletal modification

Nature Communications, 2023
Saturated N-heterocyclic pyrrolidines are common in natural products, medicinal compounds and agrochemicals. However, reconstruction of their skeletal structures creating new chemical space is a challenging task, and limited methods exist for this ...
Haitao Qin, Ting Guo, Ken Lin, Guigen Li, Hongjian Lu   +4 more
doaj   +1 more source

Oral Recombinant Human Collagen III Protects Gastric Mucosa via G‐Quadruplex‐Mediated Activation of the Pla2g4a‐Prostaglandin Axis

Advanced Science, EarlyView.
Orally administered recombinant human type III collagen protects the gastric mucosa from ethanol‐induced injury by coordinating redox homeostasis, epithelial barrier repair, and arachidonic acid–prostaglandin metabolism. Gastric digestion releases the pentapeptide GPAEF, which interacts with the Pla2g4a promoter G‐quadruplex in a structure‐dependent ...
Xinyue Lan, Qiu Dai, Yanhui Wang, Jiaxuan Gu, Chengyun Wang, Weicheng Xu, Xinru Gao, Jiageng Cheng, Wentao Geng, Xiaowen Wu, Haihang Li, Xiaoyun He, Shengwei Fu, Longjiao Zhu, Wentao Xu   +14 more
wiley   +1 more source

[(Pyrrolidin-1-yl)carbothioylsulfanyl]methyl pyrrolidine-1-carbodithioate [PDF]

Acta Crystallographica Section E Structure Reports Online, 2010
The title compound, C(11)H(18)N(2)S(4), was unexpectedly obtained during studies on the reactivity of the complex tris-(acac-κ(2)O,O')gallium(III) (acac is acetyl-acetonate) with C(4)H(8)NCS(2)H in dichloro-methane. The title compound shows disordered two pyrrolidine rings with major and minor occupancies of 0.546 (4) and 0.454 (4).
Yen-Hsiang Huang, Hsiao-Fen Wang, Wei-Lung Chou, Kuang-Hway Yih, Gene-Hsiang Lee   +4 more
openaire   +3 more sources

Breaking the Durability–Power Trade‐Off: Boron‐Directed Faceted O3 Cathodes for High‐Rate Sodium‐Ion Batteries

Advanced Energy Materials, EarlyView.
Boron‐oxide‐assisted particle engineering stabilizes O3‐type layered cathodes for sodium‐ion batteries by mitigating phase transitions and lattice strain. Acting as flux and structural modifier, boron forms submicron hexagonal platelets with (003) facets and expanded Na‐layer spacing, enabling rapid Na⁺ diffusion and mechanical resilience.
Tengfei Song, Alexis Manche, Dongrui Xie, Bowen Liu, Chenglong Wu, Bo Dong, Reda Malakauskaite, Manoj Ovhal, David O. Scanlon, Emma Kendrick   +9 more
wiley   +1 more source

Synthesis of new pyrrolidine-based organocatalysts and study of their use in the asymmetric Michael addition of aldehydes to nitroolefins

Beilstein Journal of Organic Chemistry, 2017
New pyrrolidine-based organocatalysts with a bulky substituent at C2 were synthesized from chiral imines derived from (R)-glyceraldehyde acetonide by diastereoselective allylation followed by a sequential hydrozirconation/iodination reaction.
Alejandro Castán, Ramón Badorrey, José A. Gálvez, María D. Díaz-de-Villegas   +3 more
doaj   +1 more source

Synthesis and biological evaluation of nojirimycin- and pyrrolidine-based trehalase inhibitors

Beilstein Journal of Organic Chemistry, 2012
A small set of nojirimycin- and pyrrolidine-based iminosugar derivatives has been synthesized and evaluated as potential inhibitors of porcine and insect trehalases.
Davide Bini, Francesca Cardona, Matilde Forcella, Camilla Parmeggiani, Paolo Parenti, Francesco Nicotra, Laura Cipolla   +6 more
doaj   +1 more source

Rh(II)/Pd(0) Dual Catalysis: Carbenoid N-H Insertion/Allylation Cascade Reaction to Construct Highly Functionalized and Polysubstituted Pyrrolidines

Molecules
In the category of drugs approved by the U.S. FDA, pyrrolidine is the most frequently used core of five-membered nonaromatic heterocycles containing nitrogen.
Maocheng Tang, Xianyan Jiao, Deping He, Ji-Xing Zhao, Ping Liu, Chun-Tian Li   +5 more
doaj   +1 more source

A Straightforward Route to Enantiopure Pyrrolizidines and Indolizidines by Cycloaddition to Pyrroline N-Oxides Derived from the Chiral Pool

Molecules, 1998
Enantiomerically pure, five membered cyclic nitrones, easily obtained in large amounts from protected hydroxyacids and aminoacids such as D- and L-tartaric, L-malic, and L-aspartic acids, give cycloaddition reactions with a good diastereocontrol.
Alberto Brandi, Valentina Fedi, Franca M. Cordero, Stefano Cicchi, Andrea Goti   +4 more
doaj   +1 more source

Convenient access to pyrrolidin-3-ylphosphonic acids and tetrahydro-2H-pyran-3-ylphosphonates with multiple contiguous stereocenters from nonracemic adducts of a Ni(II)-catalyzed Michael reaction

Beilstein Journal of Organic Chemistry, 2020
A new synthetic strategy toward nonracemic phosphoryl-substituted pyrrolidines and tetrahydropyranes with three and five contiguous stereocenters is presented.
Alexander N. Reznikov, Dmitry S. Nikerov, Anastasiya E. Sibiryakova, Victor B. Rybakov, Evgeniy V. Golovin, Yuri N. Klimochkin   +5 more
doaj   +1 more source