The synthesis and SAR of novel diarylsulfone 11β-HSD1 inhibitors
摘要:
In this communication, human 11 beta-hydroxysteroid dehydrogenase type 1 (11 beta-HSD1) inhibitory activities of a novel series of diarylsulfones are described. Optimization of this series resulted in several highly potent 11b-HSD1 inhibitors with excellent pharmacokinetic (PK) properties. Compound (S)-25 showed excellent efficacy in a non-human primate ex vivo pharmacodynamic model. (C) 2010 Elsevier Ltd. All rights reserved.
A highly efficient heterogeneous copper-catalyzed Chan-Lam coupling between thiols and arylboronic acids leading to diaryl sulfides under mild conditions
作者:Yang Lin、Mingzhong Cai、Zhiqiang Fang、Hong Zhao
DOI:10.1016/j.tet.2016.04.063
日期:2016.6
coupling reaction between thiols and arylboronicacids was achieved in EtOH at room temperature in the presence of 5 mol % of MCM-41-immobilized 1,10-phenanthroline-copper(II) complex [MCM-41-1,10-Phen-CuSO4] with n-Bu4NOH (40% aq) as base under O2 atmosphere, yielding a variety of unsymmetrical diaryl sulfides in good to excellent yields under mild and green conditions. The new heterogeneous copper complex
C S cross-coupling catalyzed by a series of easily accessible, well defined Ni(II) complexes of the type [(NHC)Ni(Cp)(Br)]
作者:Mario A. Rodríguez-Cruz、Simón Hernández-Ortega、Hugo Valdés、Ernesto Rufino-Felipe、David Morales-Morales
DOI:10.1016/j.jcat.2020.01.016
日期:2020.3
The synthesis, characterization and catalytic evaluation of a series of NHC-Ni(II) complexes 1-Ni (-Me), 2-Ni (-nBu) and 3-Ni (-Bn) bearing a phthalimide fragment and a cyclopentadienyl (Cp) ligand is reported. The complexes were evaluated in CS couplings of iodobenzene and a range of thiols. The reactions were carried out using a catalyst loading of 5 mol % in DMF during 0.5–19 h. Being complex 2-Ni
DABCO‐promoted Diaryl Thioether Formation by Metal‐catalyzed Coupling of Sodium Sulfinates and Aryl Iodides
作者:Yanpeng Liu、Long Yin Lam、Jiqing Ye、Nicolas Blanchard、Cong Ma
DOI:10.1002/adsc.202000221
日期:2020.6.15
A scalable catalytic synthesis method using commodity chemicals for constructing diaryl thioethers directly from sodium arylsulfinates and iodoarenes is reported in this study. In the presence of CuO or other copper salts such as Cu(OAc)2 as well as palladium catalysts, DABCO demonstrated to be essential to promote this transformation. Various iodoarenes and aryl sulfinates were examined and demonstrated
Chan–Lam-Type C–S Coupling Reaction by Sodium Aryl Sulfinates and Organoboron Compounds
作者:Long Yin Lam、Cong Ma
DOI:10.1021/acs.orglett.1c02299
日期:2021.8.6
A Chan–Lam-type C–S coupling reaction using sodium aryl sulfinates has been developed to provide diaryl thioethers in up to 92% yields in the presence of a copper catalyst and potassium sulfite. Both electron-rich and electron-poor sodium aryl sulfinates and diverse organoboron compounds were tolerated for the synthesis of aryl and heteroaryl thioethers and dithioethers. The mechanistic study suggested
Nickel Phosphite/Phosphine-Catalyzed C–S Cross-Coupling of Aryl Chlorides and Thiols
作者:Kieran D. Jones、Dennis J. Power、Donald Bierer、Kersten M. Gericke、Scott G. Stewart
DOI:10.1021/acs.orglett.7b03560
日期:2018.1.5
A method for the coupling of aryl chlorides and thiophenols using an air-stable nickel(0) catalyst is described. This thioetherification procedure can be effectively applied to a range of electronically diverse aryl/heteroaryl chlorides without more expensive metal catalysts such as palladium, iridium, or ruthenium. This investigation also illustrates both, a variety of thiol coupling partners and
描述了一种使用空气稳定的镍(0)催化剂偶联芳基氯化物和苯硫酚的方法。这种硫醚化方法可以有效地应用于多种电子形式的芳基/杂芳基氯化物,而无需使用更昂贵的金属催化剂,例如钯,铱或钌。该研究还说明了多种硫醇偶合配偶体,并且在某些情况下还说明了Cs 2 CO 3的使用。