A rapid and efficient microwave-assisted synthesis of hydantoins and thiohydantoins
作者:Giulio G Muccioli、Jacques H Poupaert、Johan Wouters、Bernadette Norberg、Wolfgang Poppitz、Gerhard K.E Scriba、Didier M Lambert
DOI:10.1016/s0040-4020(03)00033-4
日期:2003.2
The present paper describes studies on the synthesis of the antiepileptic drug phenytoin, and of structurally related derivatives. First, the influence of the solvent has been investigated in the microwave-assisted synthesis of the drug, resulting in a yield improvement and a cleaner reaction. Second, a two-step reaction is described to synthesize selectively and in high yields phenytoin. The first
本文描述了抗癫痫药苯妥英及其结构相关衍生物的合成研究。首先,已经在微波辅助合成药物中研究了溶剂的影响,从而提高了收率,并使反应更清洁。第二,描述了两步反应以选择性地且高产率地合成苯妥英。第一步是用微波活化苯甲酰与硫脲的反应,第二步是用过氧化氢将所得的2-硫代乙内酰脲转化为苯妥英钠。此外,微波活化是合成3-烷基化苯妥英衍生物的非常方便的方法,与以前报道的使用烷基化剂的方法相比,微波活化的方法更具选择性。