Synthesis of Isomeric, Oxathiolone Fused Chalcones, and Comparison of Their Activity toward Various Microorganisms and Human Cancer Cells Line
摘要:
在酸性条件下,通过将适当的乙酰苯并[1,3]氧硫杂环戊-2-酮与苯甲醛缩合,制备了同分异构的氧硫杂环戊酮融合查耳酮。利用 HeLa 细胞对合成的化合物进行了细胞毒性活性筛选,并对黄体微球菌、金黄色葡萄球菌、伤寒沙门氏菌、大肠杆菌、普通变形杆菌进行了抗菌活性筛选,对白色念珠菌进行了抗真菌活性筛选,对结核分枝杆菌 H37Rv 和堪萨斯分枝杆菌菌株进行了抗结核活性筛选。
Derivatives of (E)‐1‐(5‐alkoxybenzo[d][1,3]oxathiol‐6‐yl)‐3‐phenylprop‐2‐en‐1‐one demonstrated exceptionally high in vitro cytotoxic activity, with IC50 values of the most active derivatives in the nanomolar range. To identify structural fragments necessary for the activity, several analogs deprived of selected fragments were prepared, and their cytotoxic activity was tested. It was found that the activity depends on combined effects of (i) the heterocyclic ring, (ii) the alkoxy group at position 5 of the benzoxathiole ring, and (iii) the substituents in the phenyl ring B. Replacement of the sulfur atom by oxygen does not influence the activity. None of the listed structural fragments alone assured high cytotoxic activity.