Rapid and Efficient One-Pot Synthesis of 3,4-Dihydroquinoxalin-2-Amine Derivatives Catalyzed by Co<sub>3</sub>O<sub>4</sub>@SiO<sub>2</sub> Core-Shell Nanoparticles Under Ultrasound Irradiation
作者:Mohammad Ali Ghasemzadeh、Boshra Mirhosseini-Eshkevari、Mohammad Hossein Abdollahi-Basir
DOI:10.2174/1386207319666160524141831
日期:2016.7.12
three-component reactions of ophenylenediamines (OPDA), diverse ketones and various isocyanides in ethanol underultrasoundirradiation. The combinatorial synthesis was attained for this procedure with applying ultrasoundirradiation while making use of ethanol as green ambient. The present approach offers several advantages such as high yields, environmentally benign, simple work-up, excellent yield of products
Synthesis and anti-neuroinflammatory activity studies of substituted 3,4-dihydroquinoxalin-2-amine derivatives
作者:Donthabhakthuni Shobha、Murugulla Adharvana Chari、Khagga Mukkanti、Sun Yeou Kim
DOI:10.1016/j.tetlet.2012.03.057
日期:2012.5
We demonstrate the synthesis of multifunctional 3,4-dihydroquinoxalin-2-amine derivatives 4 through a three-component condensation reactions of a substituted o-phenylenediamines 1 (OPDA), diverse ketones 2 and various isocyanides 3 in the presence of a catalytic amount of p-toluenesulfonic acid (PTSA) affording excellent yields (82–96%) and 10 mol % of silica gel supported sulfuric acid with good yields
Amberlyst-15: an efficient and reusable catalyst for multi-component synthesis of 3,4-dihydroquinoxalin-2-amine derivatives at room temperature
作者:Murugulla Adharvana Chari
DOI:10.1016/j.tetlet.2011.09.015
日期:2011.11
We demonstrate on the synthesis of multifunctional 3,4-dihydroquinoxalin-2-amine derivatives through a three-component condensation of substituted o-phenylenediamines (OPDA), diverse ketones, and various isocyanides in the presence of an efficient and reusable amberlyst-15 catalyst which was found to be highly active and afforded excellent yields (85–99%) in ethanol at room temperature (2–3 h).
Spiropyrazine derivatives as inhibitors of non-apoptotic regulated cell-death
申请人:Helmholtz Zentrum München Deutsches Forschungszentrum für Gesundheit und Umwelt (GmbH)
公开号:US10647687B2
公开(公告)日:2020-05-12
The present invention relates to spiropyrazine compounds which are inhibitors of non-apoptotic regulated cell death, and to pharmaceutical compositions containing such compounds. Furthermore, the present invention relates to the use of such compounds and pharmaceutical compositions in therapy, in particular in the treatment of a condition, disorder or disease that is characterised by non-apoptotic regulated cell-death or where non-apoptotic regulated cell-death is likely to play or plays a substantial role. The compounds and pharmaceutical compositions described herein are also useful in the treatment of a condition, disorder or disease that is characterised by oxidative stress or where oxidative stress is likely to play or plays a substantial role; and/or a condition, disorder or disease that is characterised by activation of (1) one or more components of the necrosome; (2) death domain receptors; and/or (3) Toll-like receptors; and/or (4) players in ferroptotic/ferroptosis signalling, or where activation of any one of (1) to (3) and/or (4) is likely to play or plays a substantial role.
EDTA-catalyzed synthesis of 3,4-dihydroquinoxalin-2-amine derivatives by a three-component coupling of one-pot condensation reactions in an aqueous medium
作者:Srinivasa Rao Kolla、Yong Rok Lee
DOI:10.1016/j.tet.2010.09.050
日期:2010.11
This paper describes a simple and efficient one-pot synthetic approach for the preparation of biologically interesting 3,4-dihydroquinoxalin-2-amine derivatives using EDTA-catalyzed three-component reactions of o-phenylenediamines, carbonyl compounds, and isocyanides in an aqueous medium. This method is of great value because of its environmentally benign character, high yields, and ease of handling. (C) 2010 Elsevier Ltd. All rights reserved.