A Green and Facile Approach for Synthesis of Nitro Heteroaromatics in Water
摘要:
A convenient and green method for the oxidation of nitrogen-rich heterocyclic amines to nitro-substituted heteroaromatics using potassium peroxymonosulfate (2KHSO(5)center dot ICHSO4 center dot K2SO4, Oxone) in water was developed. This method has several advantages over previous methods: operational simplicity, safety, inexpensive reagents, the use of H2O as the sole solvent, and mild conditions. The utility of the present oxidative system was demonstrated by the synthesis of the important energetic compounds 3,4,5-trinitro-1H-pyrazole (TNP) and 5-amino-3-nitro-1H-1,2,4-triazole (ANTA).
作者:Tarmás Somorai、Géza Szilágyi、József Reiter、László Pongó、Tibor Láng、Lajos Toldy、Stephen Horváth
DOI:10.1002/ardp.19863190309
日期:——
The syntheses and antiviral properties of the newacylated 1,2,4‐triazole derivatives 4 are described. In cell culture experiments 6 out of 99 compounds specifically inhibit rubella virus replication to a high degree. Structure‐activity relationships are discussed.
[EN] SUBSTITUTED 5-METHYL-[1, 2, 4] TRIAZOLO [1,5-A) PYRIMIDIN-2-AMINE COMPOUNDS AS PDE2 INHIBITORS<br/>[FR] COMPOSÉS 5-MÉTHYL-[1, 2, 4]-TRIAZOLO-[1,5-A)-PYRIMIDIN-2-AMINES SUBSTITUÉS UTILISÉS COMME INHIBITEURS DE PDE2
申请人:DART NEUROSCIENCE LLC
公开号:WO2016073424A1
公开(公告)日:2016-05-12
The invention provides a chemical entity of Formula (I): (I), wherein R1, R2, R3, and R4, have any of the values described herein, and compositions comprising such chemical entities; methods of making them; and their use in a wide range of methods, including metabolic and reaction kinetic studies; detection and imaging techniques; radioactive treatments; modulating and treating disorders mediated by PDE2 activity; treating neurological disorders, CNS disorders, dementia, neurodegenerative diseases, and trauma- dependent losses of function; treating stroke, including cognitive and motor deficits during stroke rehabilitation; facilitating neuroprotection and neurorecovery; enhancing the efficiency of cognitive and motor training; and treating peripheral disorders, including hematological, cardiovascular, gastroenterological, and dermatological disorders.
[EN] NOVEL ULK1 INHIBITORS AND METHODS USING SAME<br/>[FR] NOUVEAUX INHIBITEURS D'ULK 1 ET LEURS MÉTHODES D'UTILISATION
申请人:SALK INST FOR BIOLOGICAL STUDI
公开号:WO2016033100A1
公开(公告)日:2016-03-03
In certain aspects, the invention provides a method for treating a disease or condition in a subject, the method comprising co-administering to a subject in need thereof a therapeutically effective amount of at least one ULK1-inhibiting pyrimidine, and a therapeutically effective amount of an mTOR inhibitor.
Vinylation of α-Aminoazoles with Triethylamine: A General Strategy to Construct Azolo[1,5-<i>a</i>]pyrimidines with a Nonsubstituted Ethylidene Fragment
作者:Qinghe Gao、Zhenhua Sun、Qinfei Xia、Ruonan Li、Wenlong Wang、Siwei Ma、Yixin Chai、Manman Wu、Wei Hu、Péter Ábrányi-Balogh、György M. Keserű、Xinya Han
DOI:10.1021/acs.orglett.1c00571
日期:2021.4.2
A new general synthesis of pharmaceutically important azolo[1,5-a]pyrimidines starting from widely available 3(5)-aminoazoles, aldehydes, and triethylamine is developed. The key is to enable the vinylation reaction that allows the in situ generation of elusive acyclic enamines and the subsequent annulation reaction to occur. This direct and practical strategy is capable of constructing a range of 5
从广泛可用的3(5)-氨基唑,醛和三乙胺开始,开发了一种重要的药学上重要的偶氮[1,5- a ]嘧啶的新的一般合成方法。关键是要实现乙烯基化反应,该反应可以原位产生难以捉摸的无环烯胺,并随后发生环化反应。这种直接而实用的策略能够构建一系列5,6-未取代的吡唑并[1,5- a ]嘧啶和[1,2,4]三唑并[1,5- a ]嘧啶。更重要的是,该方案为制备临床使用的扎来普隆提供了一种简明的合成途径。