A series of fluoxetine, where the N-methylamino group was replaced and then simplified, were synthesized and their inhibitory effect was tested for nitric oxide (NO) production and inducible NO synthase (iNOS) expression in lipopolysaccharide (LPS)-induced BV2 cells. Although the synthesized compounds generally revealed weaker activity or greater cytotoxicity than fluoxetine, compound 10a, in which the N-methylamino group in fluoxetine was replaced by morpholine, and the trifluoromethylphenyl ring was substituted with simple oxo group, suppressed NO production dose-dependently at 10, 20 and 40 μM concentrations with less cytotoxicity than fluoxetine, and inhibited iNOS mRNA and protein expression at the same concentrations in LPS-induced BV2 cells. The results suggested that the trifluoromethylphenyl ring moiety in fluoxetine is not necessary for the suppression of NO production and that 10a has the potential as a potent inhibitor of NO production.
合成了一系列
氟西汀,替换并简化了N-甲基
氨基团,并测试了它们对脂
多糖(LPS)诱导的BV2细胞中
一氧化氮(NO)产生和诱导性NO合酶(iNOS)表达的抑制作用。尽管合成的化合物一般显示出比
氟西汀弱的活性或更大的细胞毒性,但化合物10a中
氟西汀的N-甲基
氨基团被莫尔夫啉替换,且三
氟甲基苯环被简单的氧基取代,在10、20和40μM浓度下以剂量依赖的方式抑制了NO的产生,且其细胞毒性低于
氟西汀,在同样浓度下抑制了LPS诱导的BV2细胞中的iNOS mRNA和蛋白表达。结果表明,
氟西汀中的三
氟甲基苯环结构对于抑制NO产生并不是必需的,且10a具备作为NO产生强效
抑制剂的潜力。