Studies on the chemistry of thienoannelated<i>O,N</i>- and<i>S,N</i>-containing heterocycles. 17. Preparation of 1<i>H</i>-thieno[2,3-b][1,4]thiazine-1-carboxarnides as smooth muscle relaxants
作者:Maria E. Schreder、Thomas Erker
DOI:10.1002/jhet.5570370220
日期:2000.3
A new series of substituted thieno[1,4]thiazines with an urea moiety has been designed. The synthesis and results of replacement of the quinoline and indoline moieties of lead structure 1 are described. The key step in preparation was the substitution with 4-nitrophenyl chloroformate to obtain the required reactivity for substitution with diamines. Structural modifications of the amino side chain with