我们修饰了一系列 (N)-methanocarba 核苷 5'-uronamides 以在扩展的腺嘌呤 C2 取代基上包含二炔基团,作为合成中间体,导致有效和选择性的 A 3腺苷受体 (AR) 激动剂。近端炔烃旨在促进受体识别,远端炔烃与叠氮化物反应形成三唑衍生物(点击环加成)。利用点击化学将八炔基 A 3 AR 激动剂偶联到含叠氮基的荧光、化学反应性、生物素化和其他部分,保留与 A 3 AR的选择性结合。引入了双功能硫醇反应性交联剂。最有效和最具选择性的新化合物是 1-金刚烷基衍生物 ( K i6.5 nM),尽管一些点击产品的K i值在 200-400 nM 的范围内。其他有效的选择性衍生物(K i at A 3 AR in nM)被用作可能的受体亲和标记:3-nitro-4-fluorophenyl (10.6), α-bromophenacyl (9.6), 硫醇反应性异噻唑酮 (102)
我们修饰了一系列 (N)-methanocarba 核苷 5'-uronamides 以在扩展的腺嘌呤 C2 取代基上包含二炔基团,作为合成中间体,导致有效和选择性的 A 3腺苷受体 (AR) 激动剂。近端炔烃旨在促进受体识别,远端炔烃与叠氮化物反应形成三唑衍生物(点击环加成)。利用点击化学将八炔基 A 3 AR 激动剂偶联到含叠氮基的荧光、化学反应性、生物素化和其他部分,保留与 A 3 AR的选择性结合。引入了双功能硫醇反应性交联剂。最有效和最具选择性的新化合物是 1-金刚烷基衍生物 ( K i6.5 nM),尽管一些点击产品的K i值在 200-400 nM 的范围内。其他有效的选择性衍生物(K i at A 3 AR in nM)被用作可能的受体亲和标记:3-nitro-4-fluorophenyl (10.6), α-bromophenacyl (9.6), 硫醇反应性异噻唑酮 (102)
[EN] METHANOCARBA ADENOSINE DERIVATIVES AND DENDRIMER CONJUGATES THEREOF<br/>[FR] DÉRIVÉS DE MÉTHANOCARBA-ADÉNOSINE ET CONJUGUÉS DE DENDRIMÈRE DE CEUX-CI
申请人:US HEALTH
公开号:WO2011068978A1
公开(公告)日:2011-06-09
Disclosed are (N)-methanocarba adenine nucleosides, e.g., of the formula (I): as A3 adenosine receptor agonists, pharmaceutical compositions comprising such nucleosides, and a method of use of these nucleosides, wherein A, a, R2, and R3 are as defined in the specification. These nucleosides are contemplated for use in the treatment a number of diseases, for example, inflammation, cardiac ischemia, stroke, asthma, diabetes, and cardiac arrhythmias. Also disclosed are conjugates comprising a dendrimer and one or more ligands, which are functionalized congeners of an agonist or antagonist of a receptor of the G-protein coupled receptor (GPCR) superfamily. Such conjugates are have the potential of being used as dual agonists, dual antagonists, or agonist/antagonist combinations.
N-Substituted isothiazol-3(2H)-ones can be easily prepared fromN-substituted 3-benzoylpropi-onamides in two experimentally simple steps, in satisfactory overall yields. Reaction of the amides with excess thionylchloride results in the formation of N-substituted 5-benzoylisothiazol-3(2H)-ones, which are readily debenzoylated with alkali to the corresponding N-substituted isothiazol-3(2H)-ones. This
METHANOCARBA ADENOSINE DERIVATIVES AND DENDRIMER CONJUGATES THEREOF
申请人:Jacobson Kenneth A.
公开号:US20120264769A1
公开(公告)日:2012-10-18
Disclosed are (N)-methanocarba adenine nucleosides, e.g., of the formula (I): as A
3
adenosine receptor agonists, pharmaceutical compositions comprising such nucleosides, and a method of use of these nucleosides, wherein A, a, R
2
, and R
3
are as defined in the specification. These nucleosides are contemplated for use in the treatment a number of diseases, for example, inflammation, cardiac ischemia, stroke, asthma, diabetes, and cardiac arrhythmias. Also disclosed are conjugates comprising a dendrimer and one or more ligands, which are functionalized congeners of an agonist or antagonist of a receptor of the G-protein coupled receptor (GPCR) superfamily. Such conjugates are have the potential of being used as dual agonists, dual antagonists, or agonist/antagonist combinations.
Methanocarba adenosine derivatives, pharmaceutical compositions, and method of reducing intraocular pressure
申请人:Jacobson Kenneth A.
公开号:US08518957B2
公开(公告)日:2013-08-27
Disclosed are (N)-methanocarba adenine nucleosides, e.g., of the formula (I): as A3 adenosine receptor agonists, pharmaceutical compositions comprising such nucleosides, and a method of use of these nucleosides, wherein A, a, R2, and R3 are as defined in the specification. These nucleosides are contemplated for use in the treatment a number of diseases, for example, inflammation, cardiac ischemia, stroke, asthma, diabetes, and cardiac arrhythmias. Also disclosed are conjugates comprising a dendrimer and one or more ligands, which are functionalized congeners of an agonist or antagonist of a receptor of the G-protein coupled receptor (GPCR) superfamily. Such conjugates are have the potential of being used as dual agonists, dual antagonists, or agonist/antagonist combinations.