Disclosed are novel compounds of general formula (I) where the symbols are as defined in the specification, their tautomeric forms, their stereoisomers, their pharmaceutically acceptable salts, pharmaceutical compositions containing them, methods for their preparation, use of these compounds in medicine and the intermediates involved in their preparation. The compounds are useful in the treatment of diabetes and related diseases.
Photoredox/Nickel Dual Catalysis Enables the Synthesis of Alkyl Cyclopropanes via C(sp<sup>3</sup>)–C(sp<sup>3</sup>) Cross Electrophile Coupling of Unactivated Alkyl Electrophiles
作者:Sayan K. Jana、Mamata Maiti、Purusattam Dey、Biplab Maji
DOI:10.1021/acs.orglett.1c04268
日期:2022.2.18
cyclopropanes via visible light-mediated photoredox/nickel dual catalysis is demonstrated. The challenging intramolecular C(sp3)–C(sp3) cross-electrophile coupling of readily available unactivated 1,3-dialkyl electrophiles was performed under mild conditions that allowed traditionally reactive functional groups to be included. Mechanistic inspection and control experiments revealed the importance of dual catalysis
展示了通过可见光介导的光氧化还原/镍双重催化轻松合成单、1,1-和 1,2-二取代环丙烷。具有挑战性的分子内 C(sp 3 )–C(sp 3 ) 交叉亲电偶联容易获得的未活化的 1,3-二烷基亲电试剂是在温和条件下进行的,该条件允许包含传统的反应性官能团。机械检查和控制实验揭示了双重催化的重要性,反应通过逐步氧化加成和分子内 S N 2 反应进行。
Novel Antidiabetic Compounds
申请人:Lohray Braj Bhushan
公开号:US20090012069A1
公开(公告)日:2009-01-08
Disclosed are novel compounds of general formula (I) where the symbols are as defined in the specification, their tautomeric forms, their stereoisomers, their pharmaceutically acceptable salts, pharmaceutical compositions containing them, methods for their preparation, use of these compounds in medicine and the intermediates involved in their preparation. The compounds are useful in the treatment of diabetes and related diseases.
2-Benzyl and 2-phenyl-3-hydroxypropyl pivalates as protein kinase C ligands
作者:Jeewoo Lee、Ju-Hyun Lee、Su Yeon Kim、Nicholas A. Perry、Nancy E. Lewin、Jolene A. Ayres、Peter M. Blumberg
DOI:10.1016/j.bmc.2005.10.051
日期:2006.3
A series of 2-benzyl and 2-phenyl-3-hydroxypropyl pivalates designed to incorporate the principal pharmacophores of phorbol esters have been synthesized and tested as PKC-alpha ligands. Among the analogues, 13c exhibited the most potent binding affinity with a K-i = 0.7 mu M. The synthesized analogues were subjected to molecular modeling analysis based on two alternative models of the phorbol pharmacophore and a docking study or 13c was carried out. (c) 2005 Elsevier Ltd. All rights reserved.
Modulation of PPAR receptor subtype selectivity of the ligands: Aliphatic chain vs aromatic ring as a spacer between pharmacophore and the lipophilic moiety
Oxazole containing glycine and oximinobutyric acid derivatives were synthesized as PPAR alpha agonists by incorporating polymethylene spacer as a replacement of commonly used phenylene group that connects the acidic head with lipophilic tail. Compound 13a was found to be a selective and potent PPAR alpha agonist. Further 1,3-dioxane-2-carboxylic acid derivative 20 was synthesized by replacing the tetramethylene spacer of NS-220, a selective PPAR alpha agonist with phenylene group and found to exhibit PPAR alpha/gamma dual agonism. These results suggest that compounds possessing polymethylene spacer between pharmacophore and lipophilic tail exhibit predominantly PPARa agonism whereas those with an aromatic phenylene spacer shows PPAR alpha/gamma dual agonism. (C) 2008 Elsevier Ltd. All rights reserved.