Efficient synthesis of lactonic and thionolactoniclignans and evaluation of their anti-oxidant, anti-inflammatory and cytotoxic activities
作者:Trimurtulu Golakoti、Hari Krishna Kancharla、Bharani Meka、Y. L. N. Murthy
DOI:10.1007/s00044-016-1709-5
日期:2016.12
treating these lignans with Lawesson’s reagent. For all the prepared compounds the antioxidant, anti-inflammatory (5-lipoxygenase inhibition) and cytotoxic (Brine shrimp lethality test) activities were tested. The compounds 5a, 5b, 5c, 5d, 5e and 5f showed good 5-lipoxygenase inhibition activity. The thiono lignan 6d showed impressive cytotoxic activity.
从廉价的材料开始,通过应用Stobbe缩合反应,然后采用硼氢化钠进行新颖的还原环化反应,已开发出一种短而通用的α,β-二苄基-γ-丁内酯合成方法。天然产物外消旋体制备了诸如甲磺酸内酯(5a),叶绿素(5b),沙维宁(5d)和脱水多酚(5f)。通过用Lawesson试剂处理这些木脂素,可以制备新的硫代内酯(6a - 6e)。对于所有制备的化合物,均测试了其抗氧化剂,抗炎药(抑制5-脂氧合酶)和细胞毒性(盐水虾杀伤力测试)的活性。化合物5a,5b,5c,5d,5e和5f显示出良好的5-脂氧合酶抑制活性。硫代木脂素6d显示出令人印象深刻的细胞毒活性。