The synthesis and biological evaluation of 2-amino-4,5,6,7,8,9-hexahydrocycloocta[b]thiophenes as allosteric modulators of the A1 adenosine receptor
作者:Luigi Aurelio、Arthur Christopoulos、Bernard L. Flynn、Peter J. Scammells、Patrick M. Sexton、Celine Valant
DOI:10.1016/j.bmcl.2011.04.080
日期:2011.6
A series of 2-amino-4,5,6,7,8,9-hexahydrocycloocta[b]thiophenes were prepared and evaluated as potential allosteric modulators of the A1 adenosine receptor (AR). The structure–activity relationships of the 3-position were explored along with varying the size of the cycloalkyl ring. 2-Aminothiophenes with amide and hydrazide groups in the 3-position were completely inactive in an A1-AR-mediated ERK1/2
制备了一系列2-氨基-4,5,6,7,8,9-六氢环辛基[ b ]噻吩,并将其评估为A 1腺苷受体(AR)的潜在变构调节剂。探索了3位的结构-活性关系,以及改变了环烷基环的大小。在A 1 -AR介导的ERK1 / 2磷酸化测定中,在3位具有酰胺和酰肼基的2-氨基噻吩是完全无活性的,但是大多数3-苯甲酰基取代的化合物对正构激动剂介导的反应表现出变构作用,[R-PIA。尽管通过从3-苯甲酰基系列中的环戊基环变为环己基环而发现激动和变构活性都增加,但是当进一步增加环的大小时,观察到了减少。3-苯甲酰基基团的苯环上的取代基的变化也影响了这些化合物的活性。