Studies on the chemistry of thieno-anellated<i>O,N</i>- and<i>S,N</i>-containing heterocycles.<b>2</b>. Synthesis of thieno[2,3-<i>b</i>]diazepine derivatives with potential CNS activity
作者:Thomas Erker
DOI:10.1002/jhet.5570300333
日期:1993.5
to Clobazam (1) [2] and the nootropic drugs 2 and 3 [3] were synthesized. Thus, nucleophilic substitution on halogenated nitrothiophene derivatives with aniline and reaction with ethyl malonyl chloride gave after cyclisation the thieno[2,3-b]diazepinedione derivatives 7 and 14. These compounds were methylated to give the thieno-anellated heterocycles 8 and 9.
合成了类似于Clobazam (1) [2]和促智药物2和3 [3]的硫杂环戊酸。因此,在环化后,用苯胺对卤代硝基噻吩衍生物进行亲核取代,并与乙基丙二酰氯反应,得到噻吩并[2,3- b ]二氮杂二酮衍生物7和14。这些化合物被甲基化,得到硫杂环戊烷基化的杂环8和9。