Structure-Activity Relationship Studies of Novel Pyrazolo[1,5-c][1,3]benzoxazines: Synthesis and Benzodiazepine Receptor Affinity
作者:Flavia Varano、Daniela Catarzi、Vittoria Colotta、Lucia Cecchi、Guido Filacchioni、Alessandro Galli、Chiara Costagli
DOI:10.1002/ardp.19963291204
日期:——
Some 2‐arylpyrazolo[1,5‐c][1,3]benzoxazin‐5‐ones 1 and 5‐oxopyrazolo[1,5‐c][1,3]benzoxazin‐2‐carboxylates 2 were prepared and biologically evaluated for their binding at benzodiazepine receptor (BZR) in rat cortical membranes. Structure‐activity relationship studies suggest that, although proton donor d and proton acceptor a1 are both optional pharmacophoric descriptors, at least one of them must be
制备了一些 2-芳基吡唑并 [1,5-c] [1,3] benzoxazin-5-ones 1 和 5-oxopyrazolo [1,5-c] [1,3] benzoxazin-2-carboxylates 2 并对其进行了生物学评估它们与大鼠皮层膜中苯二氮卓受体 (BZR) 的结合。构效关系研究表明,尽管质子供体 d 和质子受体 a1 都是可选的药效描述子,但为了获得良好的 BZR 亲和力,必须至少存在其中一个。当质子供体 d 不存在时,杂原子受体 a1 在三环核心或 C-2 处的附加取代基中是必要的,以获得亚微摩尔 BZR 亲和力。