GPR52 Antagonist Reduces Huntingtin Levels and Ameliorates Huntington’s Disease-Related Phenotypes
作者:Congcong Wang、Yu-Fang Zhang、Shimeng Guo、Quan Zhao、Yanping Zeng、Zhicheng Xie、Xin Xie、Boxun Lu、Youhong Hu
DOI:10.1021/acs.jmedchem.0c01133
日期:2021.1.28
studies showed that Comp-43 reduces mHTT levels by targeting GPR52 and promotes survival of mouse primary striatal neurons. Moreover, in vivo study showed that Comp-43 not only reduces mHTT levels but also rescues HD-related phenotypes in HdhQ140 mice. Taken together, our study confirms that inhibition of GPR52 is a promising strategy for HD therapy, and the GPR52antagonist Comp-43 might serve as a lead
Organocatalytic Enantio- and Diastereoselective Construction of <i>syn</i>-1,3-Diol Motifs via Dynamic Kinetic Resolution of In Situ Generated Chiral Cyanohydrins
syn-1,3-dioxanes as protected 1,3-diols via dynamickineticresolution of in situ generated chiral cyanohydrins has been developed. This method involves a reversible cyanohydrin formation/hemiacetalization/intramolecular oxy-Michael addition reactioncascade, affording a chiral syn-1,3-diol structure with simultaneous construction of two stereogenic centers. The use of trifluoromethyl ketones is crucial
Ketoreductase (KRED)-catalyzed dynamic reductive kineticresolution (DYRKR) of α-substituted-β-keto arylphosphonates was developed as a generic and stereoselective approach to synthesize chiral α-substituted-β-hydroxy arylphosphonates, with moderate-to-excellent isolated yield (up to 96%), good-to-excellent diastereoselectivity (up to >99 : <1 dr), and excellent enantioselectivity (up to >99% ee) being
The highly chemo- and enantioselective hydrogenation of (E)-2-substituted-4-oxo-2-alkenoic acids was established for the first time using the Rh/JosiPhos complex, affording a series of chiral α-substituted-γ-keto acids with excellent results (up to 99% yield and >99% ee) and high efficiency (up to 3000 TON). In addition, the importance of this methodology was further demonstrated by a concise and gram-scale
Stereoselective Synthesis of 4-Substituted Cyclic Sulfamidate-5-Phosphonates by Using Rh-Catalyzed, Asymmetric Transfer Hydrogenation with Accompanying Dynamic Kinetic Resolution
作者:Yeon Ji Seo、Jin-ah Kim、Hyeon-Kyu Lee
DOI:10.1021/acs.joc.5b01434
日期:2015.9.4
asymmetric transfer hydrogenation of 4-substituted cyclic sulfamidate imine-5-phosphonates produces the corresponding cyclic sulfamidate-5-phosphonates. The process employs a HCO2H/Et3N mixture as the hydrogen source and the chiral Rh catalysts, (R,R)- or (S,S)-Cp*RhCl(TsDPEN), and it takes place at room temperature within 1 h with high yields and high levels of stereoselectivity.
由动态动力学拆分驱动的4-取代的环状氨基磺酸亚胺-5-膦酸酯的不对称转移氢化反应生成了相应的环状氨基磺酸5-膦酸酯。该方法使用HCO 2 H / Et 3 N混合物作为氢源和手性Rh催化剂((R,R)-或(S,S)-Cp * RhCl(TsDPEN) 1 h具有高收率和高水平的立体选择性。