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。