据报道,涉及伯氨基甲酸酯,乙醛酸乙酯和各种类型亲核试剂的乙酰氯介导的级联转化用于正交保护的α-氨基酯的合成。这些反应迅速进行,以优异的产率得到了关键的α-氯甘氨酸中间体,该中间体可以直接用各种类型的亲核试剂原位官能化。发现温和且独特的AcOH(cat。)/ AcCl系统可促进类似自催化的缩合反应,并促进非蛋白源性α-氨基酯的多组分组装。为了更好地理解这种一锅法转换和组分缩合的编排,提出了对更广泛范围的亲核试剂的研究和一些动力学研究。N-氨基甲酰基亚胺。同样,亲核取代的最初动力学分析支持一种类似于S N 1(S N 2C +)的机制,其中亲核体加到了亚胺鎓-氯化物紧密离子对上。这些结果最终导致新方案的设计,在该方案中,利用非手性氢键供体硫脲催化剂来扩大反应范围,并使甲硅烷基化的亲核试剂能够有效地用于合成新型的非蛋白生成的α-氨基酯。
AGONISTS THAT ENHANCE BINDING OF INTEGRIN-EXPRESSING CELLS TO INTEGRIN RECEPTORS
申请人:Biediger Ronald J.
公开号:US20130236434A1
公开(公告)日:2013-09-12
A method of enhancing binding of cells to an integrin-binding ligand comprises treating integrin-expressing cells in vitro with an agonist of integrin, wherein the integrin is selected from the group consisting of α4β1, α5β1, α4β7, αvβ3 and αLβ2, and contacting the treated cells with an integrin-binding ligand; integrin agonist compounds having the general formula I; methods of treating integrin-expressing cells with such agonists to enhance binding; and therapeutic methods comprising administering agonist-treated cells or agonist compounds to a mammal.
AGONISTS THAT ENHANCED BINDING OF INTEGRIN-EXPRESSING CELLS TO INTEGRIN RECEPTORS
申请人:TEXAS HEART INSTITUTE
公开号:US20150368234A1
公开(公告)日:2015-12-24
A method of enhancing binding of cells to an integrin-binding ligand comprises treating integrin-expressing cells in vitro with an agonist of integrin, wherein the integrin is selected from the group consisting of α4β1, α5β1, α4β7, αvβ3 and αLβ2, and contacting the treated cells with an integrin-binding ligand; integrin agonist compounds having the general formula I; methods of treating integrin-expressing cells with such agonists to enhance binding; and therapeutic methods comprising administering agonist-treated cells or agonist compounds to a mammal.
Agonists that enhance binding of integrin-expressing cells to integrin receptors
申请人:Texas Heart Institute
公开号:EP2881392A1
公开(公告)日:2015-06-10
A method of enhancing binding of cells to an integrin-binding ligand comprises treating integrin-expressing cells in vitro with an agonist of integrin, wherein the integrin is selected from the group consisting of α4β1, α5β1, α4β7, αvβ3 and αLβ2, and contacting the treated cells with an integrin-binding ligand; integrin agonist compounds having the general formula I; methods of treating integrin-expressing cells with such agonists to enhance binding; and therapeutic methods comprising administering agonist-treated cells or agonist compounds to a mammal.
Agonists that enhanced binding of integrin-expressing cells to integrin receptors
申请人:TEXAS HEART INSTITUTE
公开号:US10035784B2
公开(公告)日:2018-07-31
A method of enhancing binding of cells to an integrin-binding ligand comprises treating integrin-expressing cells in vitro with an agonist of integrin, wherein the integrin is selected from the group consisting of α4β1, α5β1, α4β7, αvβ3 and αLβ2, and contacting the treated cells with an integrin-binding ligand; integrin agonist compounds having the general formula I; methods of treating integrin-expressing cells with such agonists to enhance binding; and therapeutic methods comprising administering agonist-treated cells or agonist compounds to a mammal.