[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
[EN] MELDRUM 'S ACID, BARBITURIC ACID AND PYRAZOLONE DERIVATIVES SUBSTITUTED WITH HYDROXYLAMINE AS HNO DONORS<br/>[FR] ACIDE DE MELDRUM, ACIDE BARBITURIQUE ET DÉRIVÉS DE LA PYRAZOLINE SUBSTITUÉS PAR UNE HYDROXYLAMINE EN TANT QUE DONNEURS DE HNO
申请人:UNIV JOHNS HOPKINS
公开号:WO2013059194A1
公开(公告)日:2013-04-25
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.
作者:Daryl A. Guthrie、Anthony Ho、Cyrus G. Takahashi、Anthony Collins、Matthew Morris、John P. Toscano
DOI:10.1021/jo502330w
日期:2015.2.6
A new and versatile class of HNO donors, the (hydroxylamino)pyrazolone (HAPY) series of HNO donors utilizing pyrazolone (PY) leaving groups, is described. HNO, the smallest N-based aldehyde equivalent, is used as a reagent along with a variety of PY compounds to synthesize the desired HAPY donors in what can be considered an N-selective HNO-aldol reaction in up to quantitative yields. The bimolecular
描述了一种新型的多功能HNO供体,即利用吡唑啉酮(PY)离开基团的HNO供体的(羟胺基)吡唑啉酮(HAPY)系列。HNO(最小的N基醛当量)与各种PY化合物一起用作试剂,可以合成N-选择性HNO-醛醇缩合反应中所需的HAPY供体,且定量产率最高。在37°C的pH 7.4磷酸盐缓冲液中,HNO与PY的双分子速率常数可以达到8×10 5 M –1 s –1。在1在核磁共振实验中,HAPY化合物在生理学相关条件下定量生成HNO(以膦氮杂氮膦形式捕获),半衰期跨度为3个数量级(数分钟至数天)。B3LYP / 6-31G *计算证实了HNO与PY烯醇和烯醇化物之间在能量上有利的反应,而HNO的释放预计会通过每种HAPY化合物的氧阴离子(O HN-PY)发生。HNO已被证明可以为心脏衰竭提供功能支持。