作者:Babak Heidary Alizadeh、Mina Saeedi、Gholamreza Dehghan、Alireza Foroumadi、Abbas Shafiee
DOI:10.1007/s13738-014-0518-3
日期:2015.4
A new series of pyrano[2,3-f]chromenone derivatives were synthesized starting from resorcinol. Resorcinol reacted with 3-chloropropanoic acid to give 7-hydroxychroman-4-one and reaction of the later compound with 2-methylbut-3-yn-2-ol led to the formation of 7-((2-methylbut-3-yn-2-yl)oxy)chroman-4-one. The obtained compound tolerated the cyclization reaction through Claisen rearrangement by heating in DMF to afford 8,8-dimethyl-2,3-dihydro-4H,8H-pyrano[2,3-f]chromen-4-one. Reaction of the later compound with various aromatic aldehydes gave the title compounds in good yields. All products were evaluated for their cytotoxic activity on the blood tumor cell line K562 and compared to reference drug, etoposide. Most of them exhibited low inhibitory activity against tumor cell line and among them, the compound possessing three methoxy groups on aromatic ring showed better cytotoxic effect.
从间苯二酚开始,合成了一系列新的吡喃并[2,3-f]色烯酮衍生物。间苯二酚与 3-氯丙酸反应生成 7-羟基苯并吡喃-4-酮,后一种化合物与 2-甲基丁-3-炔-2-醇反应生成 7-((2-甲基丁-3-炔-2-基)氧基)苯并吡喃-4-酮。通过在 DMF 中加热克莱森重排,得到的化合物可以进行环化反应,生成 8,8-二甲基-2,3-二氢-4H,8H-吡喃并[2,3-f]色烯-4-酮。将后一种化合物与各种芳香醛反应,可以得到收率很高的标题化合物。评估了所有产品对血液肿瘤细胞株 K562 的细胞毒性活性,并与参考药物依托泊苷进行了比较。其中,芳香环上有三个甲氧基的化合物显示出更好的细胞毒性效果。