New insights in the development of positive allosteric modulators of α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA) receptors belonging to 3,4-dihydro-2H-1,2,4-benzothiadiazine 1,1-dioxides: Introduction of (mono/difluoro)methyl groups at the 2-position of the thiadiazine ring
作者:Eric Goffin、Pierre Fraikin、Dayana Abboud、Pascal de Tullio、Caroline Beaufour、Iuliana Botez、Julien Hanson、Laurence Danober、Pierre Francotte、Bernard Pirotte
DOI:10.1016/j.ejmech.2023.115221
日期:2023.3
monofluoromethyl or a difluoromethyl side chain at the 2-position instead of the methyl group was examined. 7-Chloro-4-cyclopropyl-2-fluoromethyl-3,4-dihydro-4H-1,2,4-benzothiadiazine 1,1-dioxide (15e) emerged as the most promising compound associating high in vitro potency on AMPA receptors, a favorable safety profile in vivo and a marked efficacy as a cognitive enhancer after oral administration in mice. Stability
AMPA 受体的正变构调节剂 (AMPAR PAM) 已被提议作为治疗各种神经退行性疾病的新药,例如阿尔茨海默病、帕金森病、注意力缺陷多动障碍、抑郁症和精神分裂症。 本研究探索了属于 3,4-二氢-2 H -1,2,4-苯并噻二嗪 1,1-二氧化物 (BTD) 的新型 AMPAR PAM,其特征是在杂环的 2 位存在短烷基取代基以及在 3 位是否存在甲基。检测了在 2 位引入单氟甲基或二氟甲基侧链而不是甲基。 7-Chloro-4-cyclopropyl-2-fluoromethyl-3,4-dihydro-4 H -1,2,4-benzothiadiazine 1,1-dioxide ( 15e ) 成为最有前途的化合物,与 AMPA 受体的体外效力相关,良好的体内安全性以及在小鼠口服给药后作为认知增强剂的显着功效。 在水性介质中的稳定性研究表明,15e至少可以部分地被视为相应的 2-羟甲基取代类似物和已知