Highly Potent 4-Amino-indolo[2,3-<i>c</i>]azepin-3-one-Containing Somatostatin Mimetics with a Range of sst Receptor Selectivities
作者:Debby Feytens、Magali De Vlaeminck、Renzo Cescato、Dirk Tourwé、Jean Claude Reubi
DOI:10.1021/jm801205x
日期:2009.1.8
conformational analysis of 4-amino-indolo[2,3-c]azepin-3-one (Aia)-containing SRIF mimetics are reported. Different subtype selectivities are observed depending on the N- and C-terminal substituents of the d-Aia-Lys dipeptide mimetic. An sst5-selective analogue with subnanomolar binding affinity was obtained that is the most potent agonist reported to date. A nonselective mimetic with high potency was also
合成,生物学评估和构象分析的4-氨基吲哚[2,3 - c ] azepin-3-one(Aia)含SRIF模拟。根据d -Aia-Lys二肽模拟物的N-和C-末端取代基,观察到不同的亚型选择性。获得了具有亚纳摩尔结合亲和力的sst 5-选择性类似物,其是迄今为止报道的最有效的激动剂。还鉴定了具有高效力的非选择性模拟物。这项研究可以更好地定义生长抑素药效团中必不可少的d- Trp侧链的生物活性构象。