Results 81 to 90 of about 25,716 (303)

Intramolecular N-H...O, intermolecular O-H...O, C-H...O and Csp³-H...πarene interactions in (2S)-2-{[(2R)-2-hydroxy-2-phenylethanoyl]amino}-4-methylpentanoic acid [PDF]

, 1999
The title compound, C₁₄H₁₉NO₄, forms a hydrogenbonded network in the solid state, consisting of one intramolecular N--H...O [N...O 2.569 (3)Å] and two intermolecular O--H...0=C [O...O 2.704(2) and 2.801 (2)Å] hydrogen bonds, with weaker C--H...O [C...O ...
Dalton, John P., Gallagher, John F., Kenny, Peter T.M., O'Donohoe, Michael   +3 more
core   +1 more source

Compound Library Screening Identified Cladribine as a Novel Radiosensitizer for Prostate Cancer

Cancer Science, EarlyView.
The combination of cladribine and irradiation significantly suppressed the growth of DU145‐derived tumors compared with the DMSO plus irradiation group in the mouse model. In addition, it also elevated the percentage of γH2AX‐positive cells after irradiation.
Toshiki Oka, Koji Hatano, Shohei Katsuki, Tomohiro Kanaki, Shunsuke Inoguchi, Masaru Tani, Akihiro Yoshimura, Yuki Horibe, Yutong Liu, Nesrine Sassi, Yohei Okuda, Akinaru Yamamoto, Toshihiro Uemura, Gaku Yamamichi, Yu Ishizuya, Takuji Hayashi, Yoshiyuki Yamamoto, Taigo Kato, Atsunari Kawashima, Keisuke Tamari, Bangzhong Lin, Akiyoshi Tani, Kazutake Tsujikawa, Yutaka Takahashi, Kazuhiko Ogawa, Shawn E. Lupold, Norio Nonomura   +26 more
wiley   +1 more source

Frame‐Shifted Synthesis of Oligoheterocycles as a Platform for Molecular Design

Angewandte Chemie, Volume 138, Issue 2, 9 January 2026.
Modern chemistry seeks to turn the simple raw materials into complex molecules that matter in health, agriculture, and technology. Among these, oligoheterocycles stand out for their versatility, yet they are most often built by cross‐coupling reactions that often rely on expensive metal catalysts.
Kane A. C. Bastick, Caleb E. Griesbach, Ben Zhen Huang, Morgan J. Cordell, Yang (Daniel) Ou, Alán Aspuru‐Guzik, Andrei K. Yudin   +6 more
wiley   +2 more sources

Asymmetric synthesis of tetrazole and dihydroisoquinoline derivatives by isocyanide-based multicomponent reactions

Nature Communications, 2019
Although isocyanide-based multicomponent reactions were proven to be simple, elegant and facile strategies for the synthesis of highly valuable nitrogen-containing heterocycles, their asymmetric versions accessing to optically active nitrogen ...
Qian Xiong, S. Dong, Yushuang Chen, Xiaohua Liu, Xiaoming Feng   +4 more
semanticscholar   +1 more source

Synthesis and physical-chemical properties of 6-(5-(1Н-tetrazole-1-ylmethyl)-4-R-1,2,4-triazole-3-ylthio)pyridin-3-amines and 6-((5-(1Н-tetrazole-1-yl)methil-4-R-1,2,4-triazole-3-ylthio)pyridin-3-yl)-(alk,ar,heter)ylmethanimines

Zaporožskij Medicinskij Žurnal, 2017
Over the past decade the number of publications, that contain different aspects of chemistry and use of triazoles and tetrazoles have been doubled and continues to grow. Puplications of recent years show that heterocycles with 1,2,3,4-teterazoles and 1,2,
Yu. S. Hulina, A. G. Kaplaushenko
doaj   +1 more source

Making Blank Faces Expressive: Chemical Approaches to the Modification of Chemically Inert Peptides

Journal of Peptide Science, Volume 32, Issue 3, March 2026.
As an alternative to the conventional approach, which combines amino acid monomers in a one‐by‐one fashion to peptide derivatives, the chemical modification of existing peptides has attracted significant attention in recent years. However, such approaches generally target the reactive functional groups in cysteine and lysine residues, particularly in ...
Yoshitaka Moriyama, Hikari Sada, Takeshi Nanjo   +2 more
wiley   +1 more source

Combining the Ugi-azide multicomponent reaction and rhodium(III)-catalyzed annulation for the synthesis of tetrazole-isoquinolone/pyridone hybrids

Beilstein Journal of Organic Chemistry, 2019
An efficient sequence based on the Ugi-azide reaction and rhodium(III)-catalyzed intermolecular annulation has been established for the preparation of tetrazole-isoquinolone/pyridone hybrids.
Gerardo M. Ojeda, Prabhat Ranjan, Pavel Fedoseev, Lisandra Amable, Upendra K. Sharma, Daniel G. Rivera, Erik V. Van der Eycken   +6 more
doaj   +1 more source

Crystal structures of (Z)-5-[2-(benzo[b]thiophen-2-yl)-1-(3,5-dimethoxyphenyl)ethenyl]-1H-tetrazole and (Z)-5-[2-(benzo[b]thiophen-3-yl)-1-(3,4,5-trimethoxyphenyl)ethenyl]-1H-tetrazole

Acta Crystallographica Section E: Crystallographic Communications, 2016
(Z)-5-[2-(Benzo[b]thiophen-2-yl)-1-(3,5-dimethoxyphenyl)ethenyl]-1H-tetrazole methanol monosolvate, C19H16N4O2S·CH3OH, (I), was prepared by the reaction of (Z)-3-(benzo[b]thiophen-2-yl)-2-(3,5-dimethoxyphenyl)acrylonitrile with tributyltin azide via a [3 
Narsimha Reddy Penthala, Jaishankar K. B. Yadlapalli, Sean Parkin, Peter A. Crooks   +3 more
doaj   +1 more source

Synthesis of Novel (bis‐)1,5‐Disubstituted‐1H‐tetrazole‐Decorated Monomers and Their Respective Polymers via Thiol‐ene Polymerization [PDF]

, 2023
Meryem S. Akdemir, Marina Simian, Patrick Théato, Hatice Mutlu   +3 more
openalex   +1 more source

Identifying Drugs Associated With Parkinson's Disease Risk Using Machine Learning

Basic &Clinical Pharmacology &Toxicology, Volume 138, Issue 3, March 2026.
ABSTRACT Machine learning (ML)–based methods have been proposed as a potential approach for identifying candidate drugs to be repurposed as disease‐modifying treatments for Parkinson's disease (PD). We applied an ML‐based signal detection method to identify drugs associated with PD and evaluated the method's generalizability.
Eeva Pylkkö, Émeline Courtois, Anne Paakinaho, Sirpa Hartikainen, Valtteri Kaasinen, Alexis Elbaz, Anne C. M. Thiébaut, Ismaïl Ahmed, Anna‐Maija Tolppanen   +8 more
wiley   +1 more source