O2-(N-Hydroxy(methoxy)-2-ethanesulfonamido) Protected Diazen-1-ium-1,2-diolates: Nitric Oxide Release via a Base-Induced β-Elimination Cleavage
摘要:
O-2-(Ethanesulfohydroxamic acid) and O-2-(N-methoxy-2-ethanesulfonylamido) diazen-1-ium-1,2-diolates (4-7), a novel type of O-2-(protected) diazeniumdiolate, were synthesized using a key thioacetate oxidation reaction. Nitric oxide release studies showed that O-2-(N-methoxy-2-ethanesulfonylamido) diazeniumdiolates 5 and 7 released NO in a nonphysiological alkaline buffer, in the presence of bases such as the basic natural amino acids Arg and His, or the non-nucleophilic organic base DBU in PBS at pH 7.4, via a beta-elimination cleavage reaction.
DIAZENIUMDIOLATED NON-STEROIDAL ANTI-INFLAMMATORY DRUGS, COMPOSITIONS THEREOF, AND RELATED METHODS
申请人:Velázquez Carlos A.
公开号:US20090186859A1
公开(公告)日:2009-07-23
Disclosed are compounds that release nitric oxide, e.g., a compound of Formula (I) wherein R
1-10
, X, and n are as described herein, which are NSAID derivatives comprising a diazeniumdiolate moiety N
2
O
2
−
. The compounds are chemopreventive agents with gastric-sparing, analgesic, cardioprotective, and/or anti-inflammatory properties. Also disclosed is a pharmaceutical composition comprising a compound of the invention and a pharmaceutically acceptable carrier. Also disclosed is a method of preventing or treating cancer or treating inflammation or an inflammation-related condition in a mammal comprising administering an effective amount of a compound of the invention to the mammal.
Aryl Bis(diazeniumdiolates): Potent Inducers of <i>S</i>-Glutathionylation of Cellular Proteins and Their in Vitro Antiproliferative Activities
作者:Daniela Andrei、Anna E. Maciag、Harinath Chakrapani、Michael L. Citro、Larry K. Keefer、Joseph E. Saavedra
DOI:10.1021/jm800831y
日期:2008.12.25
A number of bis(diazeniumdiolates) that we designed to release up to 4 mol of nitric oxide (NO) and that are structural analogues of the NO prodrug and anticancer lead compound O-2-2,4-dinitro-5-[4-(N-methylamino)benzoyloxy]phenyl} 1-(N,N-dimethylamino)diazen-1-ium-1,2-diolate (PABA/NO) were synthesized and studied. A majority of these compounds yielded higher levels of NO, were better inhibitors of proliferation of a number of cancer cell lines, and more rapidly induced substantially increased levels of S-glutathionylation of cellular proteins in comparison with PABA/NO. In most cases, the antiproliferative activity and extents of S-glutathionylation correlated well with levels of intracellular NO release. We report bis(diazeniumdiolates) to be a class of S-glutathionylating agents with potent antiproliferative and S-glutathionylating activity.
[EN] ANGIOTENSIN II RECEPTOR ANTAGONISTS<br/>[FR] ANTAGONISTES DES RÉCEPTEURS DE L'ANGIOTENSINE II
申请人:MERCK & CO INC
公开号:WO2009099853A8
公开(公告)日:2009-10-08
<i>O</i><sup>2</sup>-(<i>N</i>-Hydroxy(methoxy)-2-ethanesulfonamido) Protected Diazen-1-ium-1,2-diolates: Nitric Oxide Release via a Base-Induced β-Elimination Cleavage
作者:Zhangjian Huang、Edward E. Knaus
DOI:10.1021/ol200053z
日期:2011.3.4
O-2-(Ethanesulfohydroxamic acid) and O-2-(N-methoxy-2-ethanesulfonylamido) diazen-1-ium-1,2-diolates (4-7), a novel type of O-2-(protected) diazeniumdiolate, were synthesized using a key thioacetate oxidation reaction. Nitric oxide release studies showed that O-2-(N-methoxy-2-ethanesulfonylamido) diazeniumdiolates 5 and 7 released NO in a nonphysiological alkaline buffer, in the presence of bases such as the basic natural amino acids Arg and His, or the non-nucleophilic organic base DBU in PBS at pH 7.4, via a beta-elimination cleavage reaction.
Identification of nitric oxide-releasing derivatives of oleanolic acid as potential anti-colon cancer agents