Synthesis and Antitumor Activity of a Series of Novel 1-Oxa-4-azaspiro[4,5]deca-6,9-diene-3,8-dione Derivatives
作者:Ze Yang、Qiu Zhong、Shilong Zheng、Guangdi Wang、Ling He
DOI:10.3390/molecules24050936
日期:——
A series of novel 1-oxa-4-azaspiro[4.5]deca-6,9-diene-3,8-diones were designed and synthesized by using 4-aminophenol and α-glycolic acid or lactic acid as starting materials in three or four steps. The key step is the metal-catalyzed oxidative cyclization of the amide to 1-oxa-4-azaspiro[4.5]deca-6,9-diene-3,8-diones (10a and 10b), the reaction conditions of which are investigated and optimized. The
以4-氨基苯酚和α-乙醇酸或乳酸为起始原料,采用三种或三种方法设计合成了一系列新型1-oxa-4-azaspiro[4.5]deca-6,9-diene-3,8-dioones。四个步骤。关键步骤是酰胺的金属催化氧化环化为 1-oxa-4-azaspiro[4.5]deca-6,9-diene-3,8-diones (10a 和 10b),研究了其反应条件并优化。评估了 17 1-oxa-4-azaspiro[4.5]deca-6,9-diene-3,8-dione 衍生物的抗癌活性。初步结果表明,15 种化合物对人肺癌 A549、人乳腺癌 MDA-MB-231 和人宫颈癌 HeLa 癌细胞系具有中度至强效活性。其中,化合物 11b 和 11h 对 A549 细胞系最有效,IC50 分别为 0.18 和 0.19 µM;化合物 11d、11h、和 11k 对 MDA-MB-231 细胞系的细胞毒性最强,IC50