Design and Synthesis of Potent Macrocyclic Benzolactam Growth Hormone Secretagogues
作者:Robert J. De Vita、Alison J. Frontier、William R. Schoen、Matthew J. Wyvratt、Michael H. Fisher、Kang Cheng、Wanda W.-S. Chan、Bridget S. Butler、Roy G. Smith
DOI:10.1002/hlca.19970800421
日期:1997.6.30
The synthesis of a variety of potent macrocyclic growth hormone secretagogues, i.e.5, 9, 12, and 20–22, based on the known lead structure L-692,429 (1) is described. These conformationally constrained growth hormone secretagogues were prepared by joining the two essential pharmacophores, the amino-acid side chain at the 1H-1-benzazepine moiety and the 1,1′-biphenyl moiety with a variety of linkers
的各种烈性大环生长激素促分泌素的合成,即5,9,12,和20 - 22,基于已知的引线结构L-692429(1)进行说明。这些构象受约束的生长激素促分泌素是通过将两个基本的药效团,即1 H -1-苯并ze庚因部分的氨基酸侧链和1,1'-联苯部分与各种连接基连接在一起而制备的。发现最有效的类似物是L-744,080(21),其衍生物的1,1,1-联苯上的2'-羧酰胺部分为N,O-通过C 4酯连接基与(2-羟丙基)氨基酸侧链的OH基连接。这种有效的类似物可能有助于确定新鉴定的GHS受体L-744,080(21)的ED 50为20 nM的苯并内酰胺类生长激素促泌剂的结合构象,其效力最高为seco-β的50倍。酸前体,且比母体2'-四唑化合物L-692,429(1)强3倍。