Synthesis and In vitro Evaluation of Thiadiazole Derivatives as AChE, Bu- ChE and LOX Inhibitors
作者:Mehlika Altintop、Ahmet Ozdemir、Usama Mohsen、Halide Temel、Gulsen Ciftci、Zafer Kaplancikli
DOI:10.2174/1570180811666140529004517
日期:2014.8.31
N'-Benzylidene-2-[[5-(phenylamino)-1,3,4-thiadiazol-2-yl]thio]acetohydrazide derivatives (5a-p) were synthesized
to screen for their AChE, BuChE and LOX inhibitory activity. The CCK-8 assay was also carried out to determine
their cytotoxicity against NIH/3T3 cells. The most potent AChE inhibitors were found as compounds 5m (49.79% ± 3.08)
and 5p (42.39% ± 3.19), whereas the most potent BuChE inhibitor was found as compound 5d (35.15% ± 2.21). Among
these derivatives, N'-(3-methoxybenzylidene)-2-[[5-(phenylamino)-1,3,4-thiadiazol-2-yl]thio]acetohydrazide (5p) can be
considered as the most promising AChE inhibitor due to its low cytotoxicity to NIH/3T3 cells (IC50 500 µg/mL). N'-(4-
Methoxybenzylidene)-2-[[5-(phenylamino)-1,3,4-thiadiazol-2-yl]thio]a-cetohydrazide (5n) exhibited weak inhibition on
LOX (%20.65 ± 0.08), whilst the other compounds were not active.
合成了 N'-亚苄基-2-[[5-(苯基氨基)-1,3,4-噻二唑-2-基]硫]乙酰肼衍生物(5a-p),以筛选其 AChE、BuChE 和 LOX 抑制活性。同时还进行了 CCK-8 试验,以确定它们对 NIH/3T3 细胞的细胞毒性。发现最有效的 AChE 抑制剂是化合物 5m(49.79% ± 3.08)和 5p(42.39% ± 3.19),而最有效的 BuChE 抑制剂是化合物 5d(35.15% ± 2.21)。在这些衍生物中,N'-(3-甲氧基亚苄基)-2-[[5-(苯基氨基)-1,3,4-噻二唑-2-基]硫]乙酰肼(5p)对 NIH/3T3 细胞的细胞毒性较低(IC50 500 µg/mL),因此可被视为最有希望的 AChE 抑制剂。N'-(4- Methoxybenzylidene)-2-[[5-(phenylamino)-1,3,4-thiadiazol-2-yl]thio]a-cetohydrazide (5n) 对 LOX 有微弱的抑制作用(%20.65 ± 0.08),而其他化合物则没有活性。