Synthesis of 2,2,6-Trisubstituted 5-Methylidene-tetrahydropyran-4-ones with Anticancer Activity
作者:Tomasz Bartosik、Jacek Kędzia、Joanna Drogosz-Stachowicz、Anna Janecka、Urszula Krajewska、Marek Mirowski、Tomasz Janecki
DOI:10.3390/molecules25030611
日期:——
In our continuous search for new, relatively simple 2-alkylidene-1-oxoheterocycles as promising anticancer drug candidates, herein we report an efficient synthesis of 2,2,6-trisubstituted 5-methylidenetetrahydropyran-4-ones. These compounds were obtained in a four step reaction sequence, in which starting diethyl 2-oxopropylphosphonate was transformed into 2,2-disubstituted 5-diethoxyphosphoryldihydropyran-4-ones
在我们不断寻找新的、相对简单的 2-亚烷基-1-氧杂环作为有前景的抗癌药物候选物的过程中,我们报告了 2,2,6-三取代的 5-亚甲基四氢吡喃-4-酮的有效合成。这些化合物是在四步反应序列中获得的,其中起始的 2-氧丙基膦酸二乙酯转化为 2,2-二取代的 5-二乙氧基磷酰基二氢吡喃-4-酮,然后迈克尔加成各种格氏试剂和霍纳-沃兹沃思-埃蒙斯反应所得加合物与甲醛。还讨论了中间体迈克尔加合物的立体化学。测试了最终的 5-methylidenetetrahydropyran-4-ones 对三种癌细胞系和 6-isopropyl-2,2-dimethyl-5-methylidenetetrahydropyran-4-one (11c) 可能的抗增殖作用,其对HL-60人白血病细胞显示出非常高的细胞毒活性,并且比已知抗癌药物卡铂的活性高出三倍,被选中进行进一步的生物学评估,以揭示其作用机制。所得结果表明,11c