N-bromosuccinimide mediated decarboxylative sulfonylation of β-keto acids with sodium sulfinates toward β-keto sulfones: Evaluation of human carboxylesterase 1 activity
作者:Fuzhong Han、Bobo Su、Peifang Song、Yaqiao Wang、Lina Jia、Shanshan Xun、Minggang Hu、Liwei Zou
DOI:10.1016/j.tet.2018.08.024
日期:2018.10
decarboxylative sulfonylation of β-keto acids with sodium sulfinates is developed. The transformation exhibits a broad substrate scope and good functional group tolerance. Preliminary mechanistic studies showed that this reaction is likely to proceed through a nucleophilic substitution of β-keto acid with sulfonyl bromide pathway. All synthesized β-keto sulfones were evaluated the inhibitory effect against human
开发了由N-溴琥珀酰亚胺(NBS)介导的β-酮酸与亚磺酸钠的脱羧磺酰化反应。该转化表现出广泛的底物范围和良好的官能团耐受性。初步的机理研究表明,该反应很可能通过磺酰溴途径对β-酮酸进行亲核取代而进行。评价所有合成的β-酮砜对人羧酸酯酶1(CES1)的抑制作用。这项研究为有效合成广泛存在于生物活性天然产物和药物制剂中的β-酮砜提供了一种简便的策略。