Functional reversal of (−)-Stepholidine analogues by replacement of benzazepine substructure using the ring-expansion strategy
作者:Wei Li、Li Zhang、Lili Xu、Congmin Yuan、Peng Du、Jiaojiao Chen、Xuechu Zhen、Wei Fu
DOI:10.1111/cbdd.12796
日期:2016.10
D2 antagonistic activities. In this work, a series of novel hexahydrobenzo[4,5]azepino [2,1‐a]isoquinolines were designed and synthesized as ring‐expanded analogues of (−)‐Stepholidine. Initial pharmacological assays demonstrated that a benzazepine replacement was associated with significant increase in selectivity and functional reversal at dopamine receptor D1. Compound‐(−)‐15e (Ki = 5.32 ± 0.01 nm)
(-)-Stepholidine是中草药Stephania和天然存在的四氢小ber碱生物碱的活性成分,具有混合的多巴胺受体D 1激动剂和多巴胺受体D 2拮抗活性。在这项工作中,设计并合成了一系列新型的六氢苯并[4,5]氮杂环庚烷[2,1-a]异喹啉,作为(-)-Stepholidine的环扩展类似物。最初的药理分析表明,苯并ze庚因替代品与多巴胺受体D 1的选择性和功能逆转的显着增加有关。化合物-(-)- 15e(K i = 5.32±0.01 n m)比(-)-Stepholidine(K我 = 13 N米)和被鉴定为一种选择性多巴胺受体d 1拮抗剂(IC 50 = 0.14 μ米)。此外,分子模型表明(-)- 15e可能通过与多巴胺受体D 1的跨膜螺旋7相互作用而发挥其多巴胺受体D 1的拮抗作用。