Preparation of New Nitrogen-Bridged Heterocycles. 35. Smooth Synthesis of 10a<i>H</i>-Pyrido[1,2-<i>d</i>][1,4]thiazepine Derivatives
作者:Akikazu Kakehi、Suketaka Ito、Jun-ichi Hakui
DOI:10.1246/bcsj.66.3475
日期:1993.11
at room temperature or at the reflux temperature in chloroform to give new heterocycles, dimethyl 10aH-pyrido[1,2-d][1,4]thiazepine-1,2-dicarboxylate derivatives, in moderate yields. Similarly, the reactions of some 3-(1-pyridinio)thiophene-2-thiolates with the same reagent afforded the corresponding dimethyl 6aH-pyrido[1,2-d]thieno[2′,3′-b][1,4]thiazepine-5,6-dicarboxylates. The structures of these
各种1-吡啶并(硫代羰基)甲基化物和2-异喹啉(硫代羰基)甲基化物与乙炔二甲酸二甲酯在室温或回流温度下在氯仿中顺利反应生成新的杂环,二甲基10aH-吡啶并[1,2-d][1, 4]thiazepine-1,2-dicarboxylate 衍生物,产率适中。类似地,一些 3-(1-pyridinio)thiophene-2-thiolates 与相同的试剂反应得到相应的二甲基 6aH-pyrido[1,2-d]thieno[2',3'-b][1,4 ]thiazepine-5,6-dicarboxylates。这些1,4-硫氮杂衍生物的结构主要基于物理和光谱检查确定,最后通过三种化合物的X射线分析得到证实。