Selective alkylation and Suzuki coupling as an efficient strategy for introducing functional anchors to the ethylene-bis(indenyl) ligand
摘要:
Chiral ansa-ethylene-bis(indenyl)-metal complexes, EBI-MX2, are useful pre-catalysts for a wide variety of reactions, including hydrogenations, hydrosilylations, and polymerization reactions. In order to immobilize these complexes onto heterogeneous supports, a new methodology was developed to introduce functional anchors to the ethylene-bis(indenyl) ligand, EBI. This was accomplished by selective alkylation of indene to form toluene-4-sulfonic acid 2-(3H-inden-1-y1)-ethyl ester, which was then used to alkylate 6-bromoindene. The selective introduction of an aryl bromide then undergoes coupling reactions with aryl borates via the Suzuki coupling to efficiently introduce an alkenyl or alcohol, functional anchor in a simple four step synthesis. (C) 2005 Published by Elsevier Ltd.
Selective alkylation and Suzuki coupling as an efficient strategy for introducing functional anchors to the ethylene-bis(indenyl) ligand
摘要:
Chiral ansa-ethylene-bis(indenyl)-metal complexes, EBI-MX2, are useful pre-catalysts for a wide variety of reactions, including hydrogenations, hydrosilylations, and polymerization reactions. In order to immobilize these complexes onto heterogeneous supports, a new methodology was developed to introduce functional anchors to the ethylene-bis(indenyl) ligand, EBI. This was accomplished by selective alkylation of indene to form toluene-4-sulfonic acid 2-(3H-inden-1-y1)-ethyl ester, which was then used to alkylate 6-bromoindene. The selective introduction of an aryl bromide then undergoes coupling reactions with aryl borates via the Suzuki coupling to efficiently introduce an alkenyl or alcohol, functional anchor in a simple four step synthesis. (C) 2005 Published by Elsevier Ltd.
2-Aminothiazole allosteric enhancers of a ?1? adenosine receptors
申请人:Linden Joel
公开号:US20050027125A1
公开(公告)日:2005-02-03
The present invention relates generally to a class of 2-aminothiazole derivatives which have recently been identified as allosteric enhancers of the A
1? adenosine receptor. These compounds, and therapeutic compositions containing them, are useful for treating conditions in which activation of the A
1? adenosine receptor would be beneficial, for example, those conditions in which stimulation of angiogenesis would improve blood flow to ischemic tissues.
本发明总体上涉及一类 2-氨基噻唑衍生物,这些衍生物最近被鉴定为 A
1?这些化合物以及含有它们的治疗组合物可用于治疗激活 A 1?
1? 腺苷受体将是有益的,例如,刺激血管生成将改善缺血组织的血流量。
EP1583530A4
申请人:——
公开号:EP1583530A4
公开(公告)日:2008-07-23
2-AMINOTHIAZOLE ALLOSTERIC ENHANCERS OF A1-ADENOSINE RECEPTORS
申请人:UNIVERSITY OF VIRGINIA PATENT FOUNDATION
公开号:EP1583530A1
公开(公告)日:2005-10-12
US7485655B2
申请人:——
公开号:US7485655B2
公开(公告)日:2009-02-03
[EN] 2-AMINOTHIAZOLE ALLOSTERIC ENHANCERS OF A¿1? ADENOSINE RECEPTORS<br/>[FR] ACTIVATEURS ALLOSTERIQUES 2-AMINOTHIAZOLES DES RECEPTEURS DE L'ADENOSINE A1
申请人:UNIV VIRGINIA
公开号:WO2003061655A1
公开(公告)日:2003-07-31
The present invention relates generally to a class of 2-aminothiazole derivatives which have recently been identified as allosteric enhancers of the A1 adenosine receptor. These compounds, and therapeutic compositions containing them, are useful for treating conditions in which activation of the A1 adenosine receptor would be beneficial, for example, those conditions in which stimulation of angiogenesis would improve blood flow to ischemic tissues.