Codeine analogs. Synthesis of 4a-aryldecahydroisoquinolines containing nitrogen ring functionality and of octahydro-1H-indeno[1,2,3-ef]isoquinolines. A total synthesis of codeine
Sonogashira Cross-Coupling of Aryl Ammonium Salts by Selective C–N Activation Catalyzed by Air- and Moisture-Stable, Highly Active [Pd(NHC)(3-CF3-An)Cl2] (An = Aniline) Precatalysts
Ion Pair-Directed Regiocontrol in Transition-Metal Catalysis: A Meta-Selective C–H Borylation of Aromatic Quaternary Ammonium Salts
作者:Holly J. Davis、Madalina T. Mihai、Robert J. Phipps
DOI:10.1021/jacs.6b08164
日期:2016.10.5
interactions to direct transition-metal catalysis is a potentially powerful yet relatively underexplored strategy, with most investigations thus far focusing on using hydrogen bonds as the controlling element. We have developed an ion pair-directed approach to controlling regioselectivity in the iridium-catalyzed borylation of two classes of aromatic quaternaryammonium salts, leading to versatile meta-borylated
Sonogashira Cross-Coupling of Aryltrimethylammonium Salts
作者:Qianwei Chen、Fengchen Gao、Huiling Tang、Miao Yao、Qian Zhao、Yanhui Shi、Yanfeng Dang、Changsheng Cao
DOI:10.1021/acscatal.9b00218
日期:2019.4.5
Sonogashira coupling reaction involving C–N bond cleavage with aryltrimethylammonium triflate as an electrophilic coupling partner is described in this work. The reactions proceeded well undermildconditions with a stoichiometric ratio of alkyl, aryl, or heteroaryl acetylenes and provided yields of up to 93%. Numerous useful functional groups were tolerated under the reaction conditions. Direct amine
Synthesis and Antiviral Activity of Substituted Ethyl-2-Aminomethyl-5-Hydroxy-1H-Indole-3-Carboxylic Acids and Their Derivatives
作者:A. V. Ivachtchenko、P. M. Yamanushkin、O. D. Mitkin、V. M. Kisil、O. M. Korzinov、V. Yu. Vedenskii、I. A. Leneva、E. A. Bulanova、V. V. Bichko、I. M. Okun’、A. A. Ivashchenko、Ya. A. Ivanenkov
DOI:10.1007/s11094-015-1244-6
日期:2015.6
Novel substituted 5-hydroxy-2-aminomethyl-1H-indole-3-carboxylic acids and their derivatives were synthesized. The antiviral properties of these compounds were investigated in relation to bovine viral diarrhea virus (BVDV), hepatitis C virus (HCV), and influenza A/Aichi/2/69 (H3N2) virus. Of the compounds synthesized here, only the 5-hydroxy-2-(dimethylaminomethyl)-1-methyl-6-pyridin-3-yl- and 5-hydroxy-2-(dimethylaminomethyl)-1-methyl-6-fluoro-1H-indole-3-carboxylic acid ethyl ester hydrochlorides had significant activity against these viruses, these agents not only suppressing the replication of influenza A/Aichi/2/69 (H3N2) virus in cell cultures at micromolar concentrations, but also demonstrating high efficacy, greater than that of Arbidol, in a model of influenza pneumonia in mice infected with influenza A/Aichi/2/69 (H3N2) virus, when given at a dose of 25 mg/kg/day.
Polymerizable composition for polythiourethane optical material, polythiourethane optical material obtained from the polymerizable composition, and polymerization catalyst for polythiourethane optical material
申请人:Mitsui Chemicals, Inc.
公开号:EP2407498A2
公开(公告)日:2012-01-18
The polymerizable composition for a polythiourethane optical material of the present invention includes (A) a polymerization catalyst for a polythiourethane optical material, (B) at least one compound selected from an isocyanate compound and an isothiocyanate compound, and (C) a compound containing one or more mercapto groups, wherein said polymerization catalyst for a polythiourethane optical material (A) includes (a1) a zinc compound, and (a4)a compound represented by the following general formula (4).