Results 31 to 40 of about 85,504 (285)

Remarkable Iodine-Catalyzed Synthesis of Novel Pyrrole- Bearing N-Polyaromatic β-Lactams

Molecules, 2010
Because of their interesting biological properties various methods for the synthesis of substituted pyrroles are described in the literature. However, synthesis of pyrroles fused with a β-lactam ring has not been reported.
Bimal K. Banik, Hector Aguilar, Isabel Salinas, Gildardo Rivera, Debasish Bandyopadhyay   +4 more
doaj   +1 more source

Use of DNA‐alkylating pyrrole‐imidazole polyamides for anti‐cancer drug sensitivity screening in pancreatic ductal adenocarcinoma

Cancer Medicine, 2023
Background Activating mutations of the KRAS occurs in >90% of pancreatic ductal adenocarcinoma (PDAC) cases. However, direct pharmacological targeting of the activated KRAS protein has been challenging.
Akiko Tsujimoto, Niina Matsuo, Xiaoyi Lai, Takahiro Inoue, Hiroyuki Yoda, Jason Lin, Yoshinao Shinozaki, Takayoshi Watanabe, Nobuko Koshikawa, Atsushi Takatori, Hiroki Nagase   +10 more
doaj   +1 more source

Counterion effects in iminium-activated electrophilic aromatic substitutions of pyrroles. [PDF]

, 2011
Electrophilic substitution of pyrroles by a,b-unsaturated iminium ions is slow in acetonitrile when only weakly basic counterions are present. When the reactions are carried out in the presence of KCF3CO2, fast deprotonation of the intermediate r-adducts
Albert, Almaşi, Benfatti, Brazier, Brazier, Brown, Capdevila, Cozzi, Erkkilä, Fleischer, Gordillo, Groselj, Groselj, Herbert Mayr, Lakhdar, Lakhdar, Lakhdar, Lelais, List, Mayr, Mayr, Mayr, Mayr, Mayr, Nigst, Paras, Sami Lakhdar, Seayad, Seebach, Seebach, Sparr, Sparr, Terrasson, Tsogoeva   +33 more
core   +1 more source

Green synthesis of highly functionalized octahydropyrrolo[3,4-c]pyrrole derivatives using subcritical water, and their anti(myco)bacterial and antifungal activity [PDF]

, 2018
A series of novel 2-(thiazol-2-yl)-octahydropyrrolo[3,4-c]pyrroles was synthesized by reaction of octahydropyrrolo[3,4-c]pyrrole N-benzoylthiourea derivatives and α-haloketones in subcritical water at 130 °C in 75-91% yield.
De Coen, Laurens, Gemili, Muge, Nural, Yahya, Ulger, Mahmut, Yabalak, Erdal   +4 more
core   +1 more source

Photocatalytic Alkylation of Pyrroles and Indoles with α-Diazo Esters.

Organic Letters, 2019
This article describes the photoalkylation of electron-rich aromatic compounds with diazo esters. C-2-alkylated indoles and pyrroles are obtained with good yields even though the photocatalyst loading is as low as 0.075 mol %.
Ł. Ciszewski, Jakub Durka, D. Gryko
semanticscholar   +1 more source

[3+2] Cycloaddition of Tosylmethyl Isocyanide with Styrylisoxazoles: Facile Access to Polysubstituted 3-(Isoxazol-5-yl)pyrroles

Molecules, 2017
A facile access to polysubstituted 3-(isoxazol-5-yl)pyrroles was developed through [3+2] cycloaddition of tosylmethyl isocyanide (TosMIC) and styrylisoxazoles.
Xueming Zhang, Xianxiu Xu, Dawei Zhang
doaj   +1 more source

Photochemical behavior of the drug atorvastatin in water. [PDF]

, 2006
Atorvastatin undergoes a self-sensitized photooxygenation by sunlight in water. The main photoproducts, isolated by chromatographic techniques, have been identified by spectroscopic means.
CERMOLA, FLAVIO, DELLA GRECA, MARINA, IESCE, MARIA ROSARIA, PREVITERA, LUCIO, S. Montanaro, TEMUSSI, FABIO   +5 more
core   +1 more source

The Adductomics of Isolevuglandins: Oxidation of IsoLG Pyrrole Intermediates Generates Pyrrole–Pyrrole Crosslinks and Lactams [PDF]

High-Throughput, 2019
Isoprostane endoperoxides generated by free radical-induced oxidation of arachidonates, and prostaglandin endoperoxides generated through enzymatic cyclooxygenation of arachidonate, rearrange nonenzymatically to isoprostanes and a family of stereo and structurally isomeric γ-ketoaldehyde seco-isoprostanes, collectively known as isolevuglandins (isoLGs).
Wenzhao Bi, Geeng-Fu Jang, Lei Zhang, John W. Crabb, James Laird, Mikhail Linetsky, Robert G. Salomon   +6 more
openaire   +2 more sources

Novel Structural Hybrids of Pyrrole and Thiazole Moieties: Synthesis and Evaluation of Antibacterial and Antifungal Activities

Acta Chimica Slovenica, 2021
One of the best ways to design new biocidal agents is synthesizing hybrid molecules by combining two or more bioactive moieties in a single molecular scaffold.
Mohamed Salem, Samir Abbas, Marwa El-Sharief, Mohamed Helal, Moustafa Gouda, Mohammed Assiri, Mohammed Assiri, Tarik Ali, Tarik Ali   +8 more
doaj   +1 more source

An Efficient Synthesis of Aryl-Substituted Pyrroles by the Suzuki–Miyaura Coupling Reaction of SEM-Protected Pyrroles

Molecules, 2019
An efficient arylation of SEM-protected pyrroles by the Suzuki–Miyaura coupling reaction has been developed. The reaction can be carried out under mild conditions to provide aryl-substituted pyrroles in moderate to excellent yields.
Keli Cui, Meng Gao, Hongyi Zhao, Dongfeng Zhang, Hong Yan, Haihong Huang   +5 more
doaj   +1 more source