synthesized and its bromination was investigated in different conditions. Nine new products (bromophenol derivatives) were isolated in the reactions. These bromophenol derivatives were obtained by selectiveO-demethylation in its bromination with bromine. The products and their formations were discussed.
(HCO3−). The inhibitoryeffects of diphenylmethanonederivatives 5–18 were tested on human CA (hCA, EC 4.2.1.1) isoenzymes (hCA I and hCA II) and they inhibited both isoenzymes at micromolar levels. Compounds 5 and 10 were found to be the best inhibitors against both CA isoenzymes. According to our data, compound 10 was the best inhibitor for isoenzyme hCA I (IC50 = 3.48 µM, Ki = 2.19 µM) whereas compound
合成了已知的和新颖的衍生物,包括 CO、Br 和 OH(苄基和酚基),以及相应的(3,4-二甲氧基苯基)(2,3,4-二甲氧基苯基)甲酮的苄醇,及其对碳酸的抑制作用。研究了脱水酶 (CA) 同工酶 I 和 II。CA 是催化二氧化碳 (CO2) 可逆水合为碳酸氢盐 (HCO3-) 的金属酶。二苯甲酮衍生物 5-18 对人类 CA(hCA,EC 4.2.1.1)同工酶(hCA I 和 hCA II)的抑制作用进行了测试,它们在微摩尔水平上抑制了这两种同工酶。发现化合物 5 和 10 是针对这两种 CA 同工酶的最佳抑制剂。根据我们的数据,化合物 10 是同工酶 hCA I 的最佳抑制剂(IC50 = 3.48 µM,Ki = 2。19 µM) 而发现化合物 5 是同工酶 hCA II 的最佳抑制剂 (IC50 = 1.33 µM, Ki = 2.09 µM)。可能,5 和 10 的稳定构象比其他化合物更容易与