Design and Synthesis of Highly Specific and Selective Enkephalin Analog Containing S-Npys-Cysteine for δ Opioid Receptors
作者:Rei Matsueda、Teruo Yasunaga、Hiroaki Kodama、Michio Kondo、Tommaso Costa、Yasuyuki Shimohigashi
DOI:10.1246/cl.1992.1259
日期:1992.7
Enkephalin analogs containing S-(3-nitro-2-pyridinesulfenyl)cysteine at positions of 1,5, or 6 were synthesized for searching possible thiol groups in the opioid receptors. In the radio-ligand receptor assay and biological assays, [D-Ala2, Leu5]enkephalyl-Cys(Npys)6 exhibited a very high affinity and selectivity for δ over μ receptors, and its covalent attachment to δ receptors through the disulfide bonding was evidenced.
为了寻找阿片受体中可能存在的硫醇基团,我们合成了在 1、5 或 6 位含有 S-(3-硝基-2-吡啶亚磺酰)半胱氨酸的脑啡肽类似物。在放射性配体受体试验和生物试验中,[D-Ala2, Leu5]enkephalyl-Cys(Npys)6对δ受体比对μ受体表现出极高的亲和力和选择性,并通过二硫键与δ受体共价结合。