Synthesis and pharmacological evaluation of novel conformationally constrained homologues of glutamic acid
作者:Paola Conti、Antonio Caligiuri、Andrea Pinto、Gabriella Roda、Lucia Tamborini、Birgitte Nielsen、Ulf Madsen、Karla Frydenvang、Alessio Colombo、Carlo De Micheli
DOI:10.1016/j.ejmech.2007.01.013
日期:2007.8
(iGluRs). Synthesis of the target compounds involved 1,3-dipolar cycloaddition of nitrile oxides to suitable dipolarophiles. The structure to the compounds has been assigned by (1)H NMR and, in the case of derivatives (+/-)-4a, (+/-)-4b, (+/-)-5a, and (+/-)-5b, by means of an X-ray crystallographic analysis carried out on intermediate (+/-)-12a. The synthesized amino acids were found to be without affinity
已经合成了十二个新的构象约束的谷氨酸同源物,并在离子型谷氨酸受体(iGluRs)上进行了药理学表征。目标化合物的合成涉及将腈氧化物与合适的双亲性化合物进行1,3-偶极环加成。化合物的结构已通过(1)H NMR进行了鉴定,在衍生物(+/-)-4a,(+/-)-4b,(+/-)-5a和(+/-)的情况下)-5b,借助于对中间(+/-)-12a进行的X射线晶体学分析。发现合成的氨基酸对iGluR没有亲和力(K(i)/ IC(50)> 100microM),但化合物(+/-)-4b和(+/-)-5b除外,这显示适度对NMDA受体的亲和力(分别为K(i)= 34和13microM)。