[EN] GLYCOSIDASE INHIBITORS AND USES THEREOF<br/>[FR] INHIBITEURS DE GLYCOSIDASES ET LEURS UTILISATIONS
申请人:MERCK SHARP & DOHME
公开号:WO2014100934A1
公开(公告)日:2014-07-03
The compounds with enhanced permeability for selectively inhibiting glycosidases, prodrugs of the compounds, and pharmaceutical compositions including the compounds or prodrugs of the compounds are provided. The methods of treating diseases and disorders related to deficiency or overexpression of O-GlcNAcase, accumulation or deficiency of O-GlcNAc are also provided.
[EN] GLYCOSIDASE INHIBITORS AND USES THEREOF<br/>[FR] INHIBITEURS DE LA GLYCOSIDASE ET LEURS UTILISATIONS
申请人:MERCK SHARP & DOHME
公开号:WO2014105662A1
公开(公告)日:2014-07-03
The invention provides compounds with enhanced permeability for selectively inhibiting glycosidases, prodrugs of the compounds, and pharmaceutical compositions including the compounds or prodrugs of the compounds. The invention also provides methods of treating diseases and disorders related to deficiency or overexpression of O-GlcNAcase, accumulation or deficiency of O-GlcNAc.
Synthesis and hydrogenation of (E)-γ-aryl-γ-morpholino-α-trifluoromethylated allyl alcohols through the reaction of trifluoroacetaldehyde ethyl hemiacetal with enamines
Treatment of trifluoroacetaldehyde ethylhemiacetal with enamines, derived from acetophenone derivatives, at room temperature gave (E)-1,1,1-trifluoro-4-morpholino-4-aryl-but-3-en-2-ols, which are intermediates for preparation of the β-trifluoromethylated aldol products, 4,4,4-trifluoro-3-hydroxy-1-aryl-butan-1-ones. The structure of the intermediate (E)-1,1,1-trifluoro-4-morpholino-4-(4-nitrophenyl)-but-3-en-2-ols
在室温下,用苯乙酮衍生物衍生的烯胺处理三氟乙醛乙基半缩醛,得到中间体的(E)-1,1,1,1-三氟-4-吗啉代-4-芳基-丁-3-烯-2-醇用于制备β-三氟甲基化的羟醛产物,4,4,4-三氟-3-羟基-1-芳基-丁丹-1-酮。中间体(E)-1,1,1-三氟-4-吗啉代-4-(4-硝基苯基)-丁-3-烯-2-醇的结构可以通过1 H,13 C NMR,IR鉴定和X射线晶体学。此外,中间体(E)-1,1,1,1-三氟-4-吗啉代-4-芳基-丁-3-烯-2-醇与氢在催化量(10 mol%)的钯/碳在三氟乙醇中的存在下于110℃平稳进行在室温下以良好至优异的产率得到1,1,1-三氟-4-芳基-2-丁醇。
Photocatalytic reduction of fluoroalkyl-substituted alcohols activated by pentafluoropyridine
作者:Sergey S. Lunkov、Artem A. Zemtsov、Vitalij V. Levin、Alexander D. Dilman
DOI:10.1016/j.mencom.2023.04.028
日期:2023.5
A new method for deoxygenation of fluoroalkyl-substituted alcohols involves derivatization of the hydroxy group with pentafluoropyridine followed by photoredox catalyzed reduction of the obtained hetaryl ethers using γ-terpinene as a source of hydrogen. The initial alcohols can be easily obtained by nucleophilic fluoroalkylation of the corresponding aldehydes.
Visible Light Catalyzed Reductive Cross‐Coupling of α‐CF3‐alkyl Bromide and Alkynyl Bromide†
作者:Yiqiang Tian、Yi Li、Chun Zhang
DOI:10.1002/cjoc.202400402
日期:2024.10.15
could be used to modify the substrate with biologically activemolecular fragments. Mechanistic investigations, including control experiments, fluorescence quenching studies, and light-switching experiments, have provided insights into the reactionmechanism. This study paves the way for the application of visible-light catalysis in diverse synthetic transformations, offering a sustainable and efficient