کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1356938 | 981177 | 2007 | 14 صفحه PDF | دانلود رایگان |
The synthesis and the binding study of new 3-iodiopyrazolo[5,1-c][1,2,4] benzotriazine 5-oxides 8-alkyloxy substituted are reported. The replacement at position 3 with an iodine atom, with respect to substituents capable to form a three centered hydrogen bond and/or to form π–π stacking interaction with receptor protein, gave high affinity ligands, independently of the 8-alkyloxy substituent. High-affinity ligands were studied in mice in vivo for their pharmacological effects, considering five potential benzodiazepine actions: anxiolytic-like effects, motor coordination, anticonvulsant action, mouse learning and memory impairment, and ethanol-potentiating action. Compounds 5c and 5′c have an inverse agonist profile and for the first time is evidenced a pro-mnemonic activity. These compounds were evaluated also for their binding at Benzodiazepine site on GABAA receptor complex (GABAA/BzR complex) subtype to evaluate their subtype selectivity.
The synthesis, biological, and pharmacological investigation on new 3-iodo-8-alkyloxypyrazolo[5,1-c][1,2,4] benzotriazine 5-oxide are reported. The structure–activity relationships for these compounds are discussed. Compounds 5c and 5′c emerge for their pro-mnemonic activity from in vivo tests.Figure optionsDownload as PowerPoint slide
Journal: Bioorganic & Medicinal Chemistry - Volume 15, Issue 7, 1 April 2007, Pages 2573–2586