New heterocyclic chalcones. Part 6. Synthesis and cytotoxic activities of 5- or 6-(3-aryl- 2-propenoyl)-2(3<i>H</i>)-benzoxazolones
作者:Yordanka B. Ivanova、Georgi T. Momekov、Ognyan I. Petrov
DOI:10.1515/hc-2012-0081
日期:2013.3.1
Abstract A number of chalcones bearing an oxazole cycle were synthesized by Claisen-Schmidt condensation of 5-acetyl-2(3H)-benzoxazolone or 6-acetyl-2(3H)-benzoxazolone and the appropriate aldehydes. The chalcones were evaluated for cytotoxic activity against several tumor cell lines – BV-173 (human B cell precursor leukemia), MCF-7 and MDA-MB-231 (human breast adenocarcinoma) using the MTT-dye reduction
摘要 通过 5-乙酰基-2(3H)-苯并恶唑酮或 6-乙酰基-2(3H)-苯并恶唑酮与适当的醛类的 Claisen-Schmidt 缩合,合成了许多带有恶唑环的查耳酮。使用 MTT 染料还原测定法评估了查耳酮对几种肿瘤细胞系 - BV-173(人 B 细胞前体白血病)、MCF-7 和 MDA-MB-231(人乳腺癌)的细胞毒性活性。测试的化合物在微摩尔浓度下表现出浓度依赖性细胞毒作用。将 BV-173 肿瘤细胞系暴露于化合物 3f 会导致基因组 DNA 的强烈单核小体和寡核小体片段化,正如“细胞死亡检测”ELISA 试剂盒所证明的那样,这明确表明细胞毒性模式涉及细胞凋亡的诱导受试化合物的作用。