Development of highly potent phosphodiesterase 4 inhibitors with anti-neuroinflammation potential: Design, synthesis, and structure-activity relationship study of catecholamides bearing aromatic rings
作者:Zhong-Zhen Zhou、Bing-Chen Ge、Qiu-Ping Zhong、Chang Huang、Yu-Fang Cheng、Xue-Mei Yang、Hai-Tao Wang、Jiang-Ping Xu
DOI:10.1016/j.ejmech.2016.08.052
日期:2016.11
family members. Eight of the synthesized compounds were identified as having submicromolar IC50 values in the mid-to low-nanomolar range. Careful analysis on the structure-activity relationship of compounds 7a-l revealed that the replacement of the 4-methoxy group with the difluoromethoxy group improved inhibitory activities. More interesting, 4-difluoromethoxybenzamides 7i and 7j exhibited preference
在这项研究中,带有不同芳环(如吡啶-2-基,吡啶-3-基,苯基和2-氯苯基)的儿茶酚酰胺(7a-1)被合成为有效的磷酸二酯酶(PDE)4抑制剂。评估了这些化合物对人PDE4(PDE4CAT),全长PDE4A4,PDE4B1,PDE4C1和PDE4D7酶以及其他PDE家族成员的核心催化结构域的抑制活性。鉴定出八种合成化合物的中微摩尔IC 50值在中低纳摩尔范围内。仔细分析化合物7a-1的构效关系揭示了用二氟甲氧基取代4-甲氧基改善了抑制活性。更有趣的是,4-二氟甲氧基苯甲酰胺7i和7j表现出对PDE4的偏爱,其选择性比其他PDE分别高约3333和1111倍。此外,具有出色的PDE4D7抑制活性的化合物7j抑制LPS诱导的小胶质细胞中TNF-α的产生。