HETEROCYCLIC DERIVATIVES AS INHIBITORS OF STEAROYL-COENZYME A DELTA-9 DESATURASE
申请人:Isabel Elise
公开号:US20110301143A1
公开(公告)日:2011-12-08
Heterocyclic compounds of structural formula (I), or a pharmaceutically acceptable salt thereof, wherein W is a R
1
— substituted heteroaryl, R
1
is an heteroaryl ring substituted with an ester or carboxylic acid containing radical, X-T is N—CR
5
R
6
, C═CR
5
or CR
13
—CR
5
R
6
, Y is a bond or —C(O)—, a and b represent an integer selected from 1 to 4, and Ar is an optionally substituted phenyl or naphtyl, are inhibitors of stearoyl-coenzyme A delta-9 desaturase (SCD) The heterocyclic compounds are useful for the prevention and treatment of conditions related to abnormal lipid synthesis and metabolism, including cardiovascular disease, atherosclerosis, obesity, diabetes, neurological disease, Metabolic Syndrome, insulin resistance, cancer, liver steatosis, and non-alcoholic steatohepatitis.
Highly Stereoselective Synthesis of 1,3-Dienes through an Aryl to Vinyl 1,4-Palladium Migration/Heck Sequence
作者:Tian-Jiao Hu、Meng-Yao Li、Qian Zhao、Chen-Guo Feng、Guo-Qiang Lin
DOI:10.1002/anie.201801963
日期:2018.5.14
An efficient aryl to vinyl 1,4‐palladium migration/Heck sequence was developed for the stereoselectivesynthesis of 1,3‐dienes. High stereoselectivity was observed not only for 1,3‐dienes bearing two similar aryl groups at terminal positions, but also for those with configurations shown to be unfavorable with previous methods.
A palladium‐catalyzed enantioselective sequential ring‐opening/cross‐coupling of cyclobutanones is disclosed that provides chiral indanones bearing C3‐quaternary stereocenters. The reaction process involves palladium‐catalyzed nucleophilic addition of cyclobutanones and aryl halides, enantioselective β‐carbon elimination, and intermolecular trapping of a transient σ‐alkylpalladium complex with boronic
Asymmetric Synthesis and Application of Chiral Spirosilabiindanes
作者:Xin Chang、Pei‐Long Ma、Hong‐Chao Chen、Chuan‐Ying Li、Peng Wang
DOI:10.1002/anie.202002289
日期:2020.6.2
class of chiral spirosilabiindane scaffolds by Rh-catalyzed asymmetric double hydrosilation, for the first time. Enantiopure SPSiOL (spirosilabiindane diol), a new type of chiral building block for the preparation of various chiral ligands and catalysts, was readily prepared on greater than 10 gram scale using this protocol. The potential of this new spirosilabiindane scaffold in asymmetric catalysis
Rh‐Catalyzed Asymmetric Hydrogenation of α,β‐ and β,β‐Disubstituted Unsaturated Boronate Esters
作者:Qiaozhi Yan、Xin Shen、Guofu Zi、Guohua Hou
DOI:10.1002/chem.202000703
日期:2020.5.12
A highlyenantioselectivehydrogenation of α,β-unsaturated boronate esters catalyzed by Rh-(S)-DTBM-Segphos complex has been developed. Both (Z)-α,β- and β,β-disubstituted substrates can be successfully hydrogenated to afford chiral boronates with excellent enantioselectivities, up to 98 % ee. Furthermore, the obtained chiral boronate esters, as important versatile synthetic intermediates are successfully