The Bivalent Ligand Approach Leads to Highly Potent and Selective Acylguanidine-Type Histamine H<sub>2</sub> Receptor Agonists
作者:Tobias Birnkammer、Anja Spickenreither、Irena Brunskole、Miroslaw Lopuch、Nicole Kagermeier、Günther Bernhardt、Stefan Dove、Roland Seifert、Sigurd Elz、Armin Buschauer
DOI:10.1021/jm201128q
日期:2012.2.9
mutants, at the isolated gp right atrium, and in GTPase assays for activity on recombinant H1, H3, and H4 receptors. The bivalent ligands are H2R partial or full agonists, up to 2 orders of magnitude more potent than monovalent acylguanidines and, with octanedioyl or decanedioyl spacers, up to 4000 times more potent than histamine at the gpH2R. In contrast to their imidazole analogues, the aminothiazoles
通过连接药效性3-(2-氨基-4-甲基噻唑-5-基)-,3-(2-氨基噻唑-5-基)-,3-(咪唑)合成二价组胺H 2受体(H 2 R)激动剂。 -4-基) - ,或3-(1,2,4-三唑-5-基)乘N propylguanidine部分ģ酰化用各种链长的链烷双酸。化合物进行了研究用于h 2在GTP酶- [R激动作用和[ 35 S]GTPγS在豚鼠(GP)和人结合测定(H)H 2 R-的Gsα小号融合蛋白包括各种ħ 2 - [R突变体,在所述分离的糖蛋白右心房,以及在GTPase分析中对重组H 1,H 3和H 4的活性受体。二价配体是H 2 R部分或完全激动剂,比单价酰基胍强多达2个数量级,并且在gpH 2 R的条件下,具有辛二酰或癸二酰间隔基的效力比组胺强4000倍。与它们的咪唑相反与其他HR亚型相比,氨基噻唑对H 2 R的选择性高。具有(理论上)足够的间隔区长度(20个CH 2基团)以同时占据H