Compounds and compositions are provided for treatment or amelioration of one or more symptoms of α-synuclein toxicity, α-synuclein mediated diseases or diseases in which α-synuclein fibrils are a symptom or cause of the disease.
Compounds and compositions are provided for treatment or amelioration of one or more disorders characterized by defects in protein trafficking. A method of treating a disorder characterized by impaired protein trafficking includes administering to a subject or contacting a cell with a compound of Formula I: [formula here] or pharmaceutically acceptable salts or derivatives thereof.
Desymmetrization of Prochiral N-Pyrazolyl Maleimides via Organocatalyzed Asymmetric Michael Addition with Pyrazolones: Construction of Tri-N-Heterocyclic Scaffolds Bearing Both Central and Axial Chirality
作者:Jianqi Geng、Xingfu Wei、Biru He、Yuting Hao、Jingping Qu、Baomin Wang
DOI:10.3390/molecules28114279
日期:——
addition by using pyrazolones under mild conditions, leading to the formation of a tri-N-heterocyclic pyrazole–succinimide–pyrazolone assembly in high yields with excellent enantioselectivities (up to 99% yield, up to 99% ee). The use of a quinine-derived thiourea catalyst was essential for achieving stereocontrol of the vicinal quaternary–tertiary stereocenters together with the C–N chiral axis. Salient
Asymmetric Synthesis of Axially Chiral Arylpyrazole via an Organocatalytic Arylation Reaction
作者:Xi Gao、Chengwen Li、Li Chen、Xin Li
DOI:10.1021/acs.orglett.3c02694
日期:2023.10.27
enantioselective arylationreaction of 3-aryl-5-aminopyrazoles and quinone derivatives was realized using a chiral phosphoric acid catalyst under mild conditions. The reaction has a broad scope with respect to both arylationreaction partners and hence offers rapid access to an array of axially chiral arylpyrazoles with pretty outcomes (up to 95% yield and 99% ee). Notably, the reaction is very efficient