Direct N-alkylation of amino-azoles with alcohols catalyzed by an iridium complex/base system
作者:Feng Li、Haixia Shan、Lin Chen、Qikai Kang、Po Zou
DOI:10.1039/c1cc14861c
日期:——
The direct and regioselective N-alkylation of amino-azoles to the corresponding 2-N-(alkylamino)azoles using various alcohols as alkylating agents with good to excellent yields has been accomplished by an iridium complex/base system.
Molecular Iodine-Promoted [3 + 2] Oxidative Cyclization for the Synthesis of Heteroarene-Fused [1,2,4] Thiadiazoles/Selenadiazoles
作者:Jin-Yu Chen、Manikandan Selvaraju、Yen-Tzu Lin、Sandip Dhole、Chih-Yu Lin、Chung-Ming Sun
DOI:10.1021/acs.joc.0c00421
日期:2020.4.17
the iodine-mediated [3 + 2] oxidativecyclization of 2-aminoheteroarenes and isothiocyanates/isoselenocyanates. This oxidative [3 + 2] annulation strategy is highly regiospecific to proceed a selective C–N bond formation at the endo-nitrogen of 2-aminoheteroarenes followed by an intramolecular oxidative N–S/N–Se bond formation. It is the first example of an I2-mediated oxidative nitrogen–selenium (N–Se)
N-Acylated and N-Alkylated 2-Aminobenzothiazoles Are Novel Agents That Suppress the Generation of Prostaglandin E2
作者:Maria A. Theodoropoulou、Anastasia Psarra、Martin Erhardt、Aikaterini Nikolaou、Anna-Dimitra D. Gerogiannopoulou、Dimitra Hadjipavlou-Litina、Daiki Hayashi、Edward A. Dennis、Andrea Huwiler、George Kokotos
DOI:10.3390/biom12020267
日期:——
diseases. We synthesized a series of N-acylated and N-alkylated 2-aminobenzothiazoles and related heterocycles (benzoxazoles and benzimidazoles) and evaluated their ability to suppress the cytokine-stimulated generation of PGE2 in rat mesangial cells. 2-Aminobenzothiazoles, either acylated by the 3-(naphthalen-2-yl)propanoyl moiety (GK510) or N-alkylated by a chain carrying a naphthalene (GK543) or a phenyl