Design, synthesis, and antifibrosis evaluation of 4-(benzo-[c][1,2,5]thiadiazol-5-yl)-3(5)-(6-methyl- pyridin-2-yl)pyrazole and 3(5)-(6-methylpyridin- 2-yl)-4-(thieno-[3,2,-c]pyridin-2-yl)pyrazole derivatives
作者:Wen-Jing Zhu、Ben-Wen Cui、Hui Min Wang、Ji-Xing Nan、Hu-Ri Piao、Li-Hua Lian、Cheng Hua Jin
DOI:10.1016/j.ejmech.2019.07.013
日期:2019.10
Six series of 4-(benzo[c][1,2,5]thiadiazol-5-yl)-3(5)-(6-methylpyridin-2-yl)- pyrazoles 18a–d, 19a–d, 22a–d and 3(5)-(6-methylpyridin-2-yl)-4-(thieno[3,2,-c]- pyridin-2-yl)pyrazoles 20a–d, 21a–d, 23c, 23d have been synthesized and evaluated for their activin receptor-like kinase 5 (ALK5) and p38α mitogen activated protein (MAP) kinase inhibitory activities in enzymatic assays. Among these compounds
六系列的4-(苯并[ c ] [1,2,5]噻二唑-5-基)-3(5)-(6-甲基吡啶-2-基)-吡唑18a – d,19a – d,22a – d和3(5) - (6-甲基吡啶-2-基)-4-(噻吩并[3,2, - ç ] -吡啶-2-基)吡唑类20A - d,21A - d,23C,23D一直合成并评估其激活素受体样激酶5(ALK5)和p38α丝裂原活化蛋白(MAP)激酶的抑制活性。在这些化合物中,活性最高的化合物22c,在酶促测定中抑制ALK5磷酸化,IC 50值为0.030μM。化合物22c显示出对ALK5激酶的有效活性是临床候选化合物LY-2157299的四倍。22c对p38αMAP激酶的选择性指数为235,远高于LY-2157299(4),并且与EW-7197(218)的选择性相同。化合物22c有效抑制了TGF-β诱导的LX-2人肝星状细胞(HSC)中胶原蛋白I和α-SMA的蛋