[EN] MELDRUM 'S ACID, BARBITURIC ACID AND PYRAZOLONE DERIVATIVES SUBSTITUTED WITH HYDROXYLAMINE AS HNO DONORS [FR] ACIDE DE MELDRUM, ACIDE BARBITURIQUE ET DÉRIVÉS DE LA PYRAZOLINE SUBSTITUÉS PAR UNE HYDROXYLAMINE EN TANT QUE DONNEURS DE HNO
Curtailing the Hydroxylaminobarbituric Acid–Hydantoin Rearrangement To Favor HNO Generation
作者:Daryl A. Guthrie、Saghar Nourian、Cyrus G. Takahashi、John P. Toscano
DOI:10.1021/jo5023316
日期:2015.2.6
primary strategies for the development of new HNO donors has been modifying hydroxylamines with good leaving groups. A recent example of this strategy is the (hydroxylamino)barbituric acid (HABA) class of HNO donors. In this case, however, an undesired intramolecular rearrangement pathway to the corresponding hydantoinderivative competes with HNO formation, particularly in the absence of chemical traps
由于其固有的反应性,必须通过使用供体化合物原位生成HNO。开发新的HNO供体的主要策略之一是用良好的离去基团修饰羟胺。这种策略的最新例子是HNO供体的(羟基氨基)巴比妥酸(HABA)类。然而,在这种情况下,到相应的乙内酰脲衍生物的不希望的分子内重排途径与HNO形成竞争,特别是在不存在HNO的化学阱的情况下。这种竞争性的非HNO产生途径将HABA类的开发限制为在生理pH和温度下具有快速HNO释放曲线的实例(t 1/2<1分钟)。在本文中,已经研究了有利于重排途径的因素,并且已经开发了两种防止重排以促进HNO生成的独立策略。在生理相关条件下,通过1 H NMR光谱法测定了这些化合物体外转化为HNO(以膦氮杂氮膦形式捕获)和相应的巴比妥酸(BA)副产物的时程和化学计量。这些结果证实了纯HNO供体的HABA类的成功扩展,其在pH 7.4、37°C下从19到107分钟的半衰期。
MELDRUM'S ACID, BARBITURIC ACID AND PYRAZOLONE DERIVATIVES SUBSTITUTED WITH HYDROXYLAMINE AS HNO DONORS
申请人:The Johns Hopkins University
公开号:EP2776402B1
公开(公告)日:2017-07-26
US20140275134A1
申请人:——
公开号:US20140275134A1
公开(公告)日:2014-09-18
N-SUBSTITUTED HYDROXYLAMINE DERIVATIVES WITH CARBON-BASED LEAVING GROUPS
申请人:The Johns Hopkins University
公开号:US20160115148A1
公开(公告)日:2016-04-28
The disclosed subject matter provides certain N-substituted hydroxylamine derivative compounds, pharmaceutical compositions and kits comprising such compounds, and methods of using such compounds or pharmaceutical compositions. In particular, the disclosed subject matter provides methods of using such compounds or pharmaceutical compositions for treating, preventing, or delaying the onset and/or development of a disease or condition. In some embodiments, the disease or condition is selected from cardiovascular diseases, ischemia, reperfusion injury, cancerous disease, pulmonary hypertension and conditions responsive to nitroxyl therapy.