Preparation of leukotriene B4 inhibitory active 2- and 3-(2-aminothiazol-4-yl)benzo[b]furan derivatives and their growth inhibitory activity on human pancreatic cancer cells
作者:Mari Kuramoto、Yoko Sakata、Kumi Terai、Ikuo Kawasaki、Jun-ichi Kunitomo、Takahiro Ohishi、Takehiko Yokomizo、Seiichi Takeda、Shuichi Tanaka、Yoshitaka Ohishi
DOI:10.1039/b803313g
日期:——
A series of 2-(2-aminothiazol-4-yl)benzo[b]furan and 3-(2-aminothiazol-4-yl)benzo[b]furan derivatives were prepared, and their leukotriene B4 inhibitory activity and growth inhibitory activity in cancer cell lines were evaluated. Several compounds showed strong inhibition of calcium mobilization in CHO cells overexpressing human BLT1 and BLT2 receptors and growth inhibition to human pancreatic cancer cells MIA PaCa-2. 3-(4-Chlorophenyl)-2-[5-formyl-2-[(dimethylamino)methyleneamino]thiazol-4-yl]-5-methoxybenzo[b]furan 8b showed the most potent and selective inhibition for the human BLT2receptor, and its IC50 value was smaller than that of the selected positive control compound, ZK-158252. 3-(4-Chlorophenyl)-2-[2-[(dimethylamino)methyleneamino]-5-(2-hydroxyethyliminomethyl)thiazol-4-yl]-5-methoxybenzo[b]furan 9a displayed growth inhibitory activity towards MIA PaCa-2.
一系列2-(2-氨基噻唑-4-基)苯并[b]呋喃和3-(2-氨基噻唑-4-基)苯并[b]呋喃衍生物被合成,并评估了它们对白三烯B4的抑制活性及对癌细胞系的生长抑制活性。几个化合物在过表达人类BLT1和BLT2受体的CHO细胞中显示出对钙动员的强抑制作用,并对人类胰腺癌细胞MIA PaCa-2表现出生长抑制。3-(4-氯苯基)-2-[5-甲酰基-2-[(二甲氨基)亚甲基氨基]噻唑-4-基]-5-甲氧基苯并[b]呋喃8b对人类BLT2受体显示出最强且选择性的抑制,其IC50值小于选定的阳性对照化合物ZK-158252。3-(4-氯苯基)-2-[2-[(二甲氨基)亚甲基氨基]-5-(2-羟基乙基亚氨基甲基)噻唑-4-基]-5-甲氧基苯并[b]呋喃9a对MIA PaCa-2显示出生长抑制活性。