Synthesis and Antidiuretic Activities of Novel Glycoconjugates of Arginine-Vasopressin.
作者:Hiroshi SUSAKI、Kokichi SUZUKI、Masahiro IKEDA、Harutami YAMADA、Hiroshi K. WATANABE
DOI:10.1248/cpb.46.1530
日期:——
Arginine-vasopressin (AVP) was acylated with various acyl azides (2a-j) in pH 9.1 buffer to give AVP derivatives (11a-j) modified at the tyrosine side chain with a carbohydrate via a spacer arm. Glycoconjugates of AVP modified at the N-terminal amide (12a-e) were also synthesized from AVP and carboxylic acids (3a-e) using dicyclohexylcarbodiimide and 1-hydroxybenzotriazole as coupling agent. Analogues
在pH 9.1缓冲液中,将精氨酸-加压素(AVP)与各种酰基叠氮化物(2a-j)酰化,以在酪氨酸侧链上通过间隔基臂用碳水化合物修饰AVP衍生物(11a-j)。还使用二环己基碳二亚胺和1-羟基苯并三唑作为偶联剂,由AVP和羧酸(3a-e)合成了在N末端酰胺(12a-e)处修饰的AVP糖共轭物。类似物(11a-j)的体内抗利尿活性高于AVP。AVP和糖缀合物(12a-e)在大鼠血浆中稳定。另一方面,发现糖缀合物(11a-i)根据一级动力学容易转化为AVP。因此,11a-j被认为是AVP的前药。