Preparation and pharmacological evaluation of a novel series of 2-(phenylthio)benzo[b]thiophenes as selective MT2 receptor ligands
作者:Christophe Mésangeau、Mikaël Fraise、Philippe Delagrange、Daniel Henri Caignard、Jean Albert Boutin、Pascal Berthelot、Saïd Yous
DOI:10.1016/j.ejmech.2011.02.044
日期:2011.5
compounds. The new derivatives 8-14 showed modest to high selectivity (between 4 and 220) for MT2 receptors. The most selective compound, N-(2-(5-fluoro-2-(4-fluorophenylthio)benzo[b]thiophen-3-yl)ethyl)but-3-enamide (14), an MT2 ligand with affinity for the MT2 receptor similar to that of melatonin and a 220-fold preference over MT1 receptors, acts as a partial agonist. In addition, N-(2-(5-fluoro-2-
合成了一系列的N-(2-(5-氟-2-(4-氟苯硫基)苯并[b]噻吩-3-基)乙基)乙酰胺,并评估了其对褪黑激素受体的结合亲和力和内在活性。通过对在CHO细胞中表达的克隆人MT 1和MT 2受体的结合研究,确定了每种化合物对褪黑激素受体的亲和力。在[ 35 S]GTPγS结合试验中测定了最有趣的化合物的激动剂和拮抗剂的效价。新衍生物8 - 14显示了轻微的,为MT高选择性(4之间和220)2受体。选择性最高的化合物N- (2-(5-氟-2-(4-氟苯硫基)苯并[b]噻吩-3-基)乙基)丁-3-烯酰胺(14),一个MT 2配体具有亲和力的MT 2类似于受体褪黑激素的作用和相对于MT 1受体的220倍的优先选择,起部分激动剂的作用。另外,N-(2-(5-氟-2-(4-氟苯硫基)苯并[b]噻吩-3-基)乙基)丙酰胺(9),一种具有良好选择性比的纳摩尔MT 2配体(MT 1 / MT 2 = 5