Cyclopropane Pipecolic Acids as Templates for Linear and Cyclic Peptidomimetics: Application in the Synthesis of an Arg-Gly-Asp (RGD)-Containing Peptide as an α<sub>v</sub>β<sub>3</sub>Integrin Ligand
作者:Lorenzo Sernissi、Martina Petrović、Dina Scarpi、Antonio Guarna、Andrea Trabocchi、Francesca Bianchini、Ernesto G. Occhiato
DOI:10.1002/chem.201403077
日期:2014.8.25
The synthesis and evaluation of substituted cyclopropane pipecolic acids (CPA) as conformationally restricted templates for linear and cyclic peptidomimetics is reported. A variety of differently substituted (poly)hydroxy‐ and amino‐2‐azabicyclo[4.1.0]heptane‐1‐carboxylic acids were prepared by means of the Pd‐catalyzed methoxycarbonylation of suitably functionalized lactam‐derived enol phosphates
据报道,作为线性和环状拟肽的构象受限模板,取代的环丙烷胡椒酸(CPA)的合成和评价。各种不同取代的(聚)羟基和氨基-2-氮杂双环[4.1.0]庚烷-1-羧酸是通过适当官能化的内酰胺衍生的烯醇磷酸酯的Pd催化甲氧基羰基化反应,然后是OH-定向环丙烷化。CPA已成功引入线性肽序列中,以评估关于胡椒酸肽键的顺式/反式异构体,并引入具有Arg-Gly-Asp(RGD)序列的环状拟肽中,该环状拟肽物表现出纳摩尔活性作为α的拮抗剂。v β 3M21人黑素瘤细胞中的整联蛋白。因此,CPA似乎适合用于药物发现的新型拟肽。