Synthesis, in vitro and in silico enzyme (COX-1/2 & LOX-5), free radical scavenging and cytotoxicity profiling of the 2,4-dicarbo substituted quinazoline 3-oxides
作者:Malose J. Mphahlele、Eugene E. Onwu、Emmanuel N. Agbo、Marole M. Maluleka、Garland K. More、Yee Siew Choong
DOI:10.1007/s00044-021-02811-9
日期:2022.1
enzymatic assays in vitro and in silico for potential inhibitory effect against cyclooxygenase-1/2 (COX-1/2) and lipoxygenase-5 activities as well as for free radical scavenging potential and cytotoxicity. The 6-bromo (3k) and 6-iodo substituted 2-(4-chlorophenyl)-4-methylquinazoline 3-oxide (3q) exhibited significant inhibitory effect against both COX-1 (IC50 = 13.9 ± 3.21 µM and 9.7 ± 0.09 µM, respectively)
一系列 3-甲基喹唑啉 3-氧化物衍生物通过体外和计算机上的酶促测定对环氧合酶-1/2 (COX-1/2 )和脂加氧酶-5 活性的潜在抑制作用以及自由基清除能力进行了评估和细胞毒性。6-溴 ( 3k ) 和 6-碘取代的 2-(4-氯苯基)-4-甲基喹唑啉 3-氧化物 ( 3q ) 对 COX-1 均表现出显着的抑制作用 (IC 50 = 13.9 ± 3.21 µM 和 9.7 ± 0.09 µM,分别)和 COX-2(IC 50 = 6.4 ± 0.74 µM 和 4.6 ± 1.45 µM,分别)与槲皮素(IC 50 = 13.84 ± 1.57 µM 和 5.06 ± 2.60 µM,分别)。然而,与选择性 COX-2 抑制剂塞来昔布相比,它们的活性适中,对 COX-1 和 COX-2 的IC 50值分别为 7.35 ± 0.88 µM 和 0.62 ± 0.74 µM。这两种化合物对