Regiospecific Introduction of Halogens on the 2-Aminobiphenyl Subunit Leading to Highly Potent and Selective M3 Muscarinic Acetylcholine Receptor Antagonists and Weak Inverse Agonists
作者:Oliver Fischer、Josefa Hofmann、Hannelore Rampp、Jonas Kaindl、Gerald Pratsch、Amelie Bartuschat、R. Verena Taudte、Martin F. Fromm、Harald Hübner、Peter Gmeiner、Markus R. Heinrich
DOI:10.1021/acs.jmedchem.0c00297
日期:2020.4.23
Muscarinic M3 receptor antagonists and inverse agonists displaying high affinity and subtype selectivity over the antitarget M2 are valuable pharmacological tools and may enable improved treatment of chronic obstructive pulmonary disease (COPD), asthma, or urinary incontinence. On the basis of known M3 antagonists comprising a piperidine or quinuclidine unit attached to a biphenyl carbamate, 5-fluoro
毒蕈碱型M3受体拮抗剂和反向激动剂相对于抗靶标M2具有高亲和力和亚型选择性,是有价值的药理工具,可以改善对慢性阻塞性肺疾病(COPD),哮喘或尿失禁的治疗。基于已知的包含与联苯氨基甲酸酯连接的哌啶或喹核苷单元的M3拮抗剂,5-氟取代是导致M3对M2的亚型选择性的原因,而3'-氯取代则通过σ-孔相互作用显着提高了亲和力。结果,发现了两个哌啶基和两个喹啉烷基取代的联苯氨基甲酸酯OFH243(13n),OFH244(13m),OFH3911(14n)和OFH3912(14m),它们显示出两位皮摩尔亲和力,Ki值从0.069到0.084 nM。 ,以及对M2亚型的高选择性(46到68倍)。在确定联苯氨基甲酸酯13m和13n具有弱反激动特性的同时,在相同的分析条件下观察到14m和14n与噻托溴铵具有中性拮抗作用。