Direct synthesis of new arylanthranilic acids via a Suzuki cross-coupling reaction from iodoisatins
摘要:
Direct synthesis of new arylanthranilic acids via a Suzuki cross-coupling reaction with iodoisatins as key intermediates is described. A 'one pot' procedure is proposed. (c) 2005 Elsevier Ltd. All rights reserved.
Anthranilicacids (AAs) are significant basic chemicals used in pharmaceuticals, agrochemicals, dyes, fragrances, etc. Superfluous steps are always involved in obtaining AAs. Herein, we demonstrate a straightforward strategy to transform abundant o-nitrotoluenes into biologically and pharmaceutically significant AAs without any extra reductants, oxidants and protecting groups. Various sensitive groups
Sustainable methine sources for the synthesis of heterocycles under metal- and peroxide-free conditions
作者:Gopal Chandru Senadi、Vishal Suresh Kudale、Jeh-Jeng Wang
DOI:10.1039/c8gc03839b
日期:——
identified as sustainable methine sources for synthesizing quinazolinone and benzimidazole derivatives using a combination of TsOH·H2O/O2 and appropriate bis-nucleophiles for the first time. Deuterium labeling studies clearly proved that the C2 hydrogen of the synthesized heterocycles came from the methine source. These unique reaction conditions were successfully applied to the synthesis of echinozolinone
首次将TsOH·H 2 O / O 2和适当的双亲核试剂组合使用,将醇和醚确定为可持续的次甲基来源,用于合成喹唑啉酮和苯并咪唑衍生物。氘标记研究清楚地证明了合成杂环的C 2氢来自次甲基。这些独特的反应条件已成功地用于合成棘金龙酮(2e'),2f'(rutaecarpine和(±)evodiamine的常见前体)和二咪唑(6d)。该方法的显着特征包括低毒性,使用商业原料作为底物,成本低,对官能团的耐受性强以及对多种双亲核起始原料的适用性。
Substituent Effects upon the Catalytic Activity of Aromatic Cyclic Seleninate Esters and Spirodioxyselenuranes That Act as Glutathione Peroxidase Mimetics
作者:David J. Press、Eric A. Mercier、Dušan Kuzma、Thomas G. Back
DOI:10.1021/jo800381s
日期:2008.6.1
Substituenteffects were studied in a series of aromaticcyclic seleninate esters and spirodioxyselenuranes that function as mimetics of the antioxidant selenoenzyme glutathione peroxidase. The methoxy-substituted selenurane proved the most efficacious catalyst for the reduction of hydrogen peroxide with benzyl thiol, and the reaction rates were enhanced for both classes by electron-donating substituents
[EN] PFKFB3 INHIBITORS AND THEIR USES<br/>[FR] INHIBITEURS DE PFKFB3 ET LEURS UTILISATIONS
申请人:GERO DISCOVERY LLC
公开号:WO2020080979A1
公开(公告)日:2020-04-23
This disclosure relates to new phthalimide and isoindolinone derivatives and other PFKFB3 inhibitors for use in the treatment of diseases. The invention further relates to pharmaceutical compositions containing such PFKFB3 inhibitors, methods of preparation thereof, methods for their use as therapeutic agents, and methods of preparation of a medicament for use in therapy, as well as kits and other inventiions comprising such PFKFB3 inhibitors. These PFKFB3 inhibitors are useful for the treatment and prophylaxis of cancer, neurodegenerative diseases, autoimmune diseases, inflammatory disorders, multiple sclerosis, metabolic diseases, inhibition of angiogenesis and other diseases and conditions, where the modulation of PFKFB3 and/or PFKFB4 has beneficial effect as well as neuroprotection.