Reactions of 6-thiotheophylline with alkylating agents and epichlorohydrin: Isolation of<i>S</i>-alkylated 6-thiotheophylline and 7-(2,3-thioepoxypropyl)theophylline
作者:Hiroaki Hayashi、Fumio Suzuki、Toru Yasuzawa、Hideo Ueno
DOI:10.1002/jhet.5570300142
日期:1993.1
of 6-thiotheophylline (1) under the aprotic basic condition affords S-alkylated 6-thiotheophylline (3) together with an N7 -alkylated product 4. There is a tendency that the more reactive the alkylating agents are, the higher the yields of S-alkylated products are. On the other hand, treatment of 6-thiotheophylline (1) with epichlorohydrin afforded an unexpected product, 7-(2,3-thioepoxypropyl)theophylline
在非质子碱性条件下将6-硫代茶碱(1)烷基化可得到S-烷基化的6-硫代茶碱(3)和N 7-烷基化产物4。烷基化剂的反应性越强,S-烷基化产物的收率越高。另一方面,用表氯醇处理6-硫代茶碱(1)可得到意想不到的产物7-(2,3-硫代环氧丙基)茶碱(6),S-烷基化化合物3g和N 7-烷基化化合物4g均没有。。通过核磁共振光谱分析确定化学结构。