Superacid synthesis of halogen containing N-substituted-4-aminobenzene sulfonamides: New selective tumor-associated carbonic anhydrase inhibitors
作者:Guillaume Compain、Agnès Martin-Mingot、Alfonso Maresca、Sebastien Thibaudeau、Claudiu T. Supuran
DOI:10.1016/j.bmc.2012.05.037
日期:2013.3
strongly favors hCA inhibition. A similar effect of the β-fluorinated alkyl substitution on the amino function has been also observed. Among the tested compounds, several chlorinated derivatives have been identified as selective nanomolar, tumor-associated isoforms inhibitors. These non-primary sulfonamides probably bind in the coumarin-binding site, at the entrance of the cavity, and not to the metal ion
使用超强酸HF / SbF 5合成了一系列新的含卤素的N-取代的4-氨基苯磺酰胺化学,并作为几种人类碳酸酐酶(hCA,EC 4.2.1.1)异构体的抑制剂进行了研究,这些异构体是胞质hCA I和II,以及与肿瘤相关的跨膜异构体hCA IX和XII。尽管磺酰胺官能团被取代,但是在磺酰胺官能团的β位置上存在氟原子强烈地促进了hCA的抑制。还已经观察到β-氟化烷基取代对氨基官能团的类似作用。在测试的化合物中,几种氯化衍生物已被确定为选择性的纳摩尔,与肿瘤相关的同工型抑制剂。这些非伯磺酰胺可能在腔入口处的香豆素结合位点结合,而不是作为伯磺酰胺抑制剂的金属离子。