1,6-二取代的3,4-二氢[1]苯并噻吩并[2,3- c ]吡啶衍生物(I)是通过Bischler-Napieralski环化适当的2-(-)的N-乙酰基或N-苯甲酰基衍生物制备的5-取代的3-苯并[ b ]噻吩基)乙胺。尝试制备3,4-二氢-1-(3,4-二甲氧基苄基)[1]苯并噻吩并[2,3- c通过类似的方法,通过吡啶和其6-氯类似物,分别得到1-(3,4-二甲氧基苯甲酰基)衍生物。用硼氢化钠将3,4-二氢衍生物(I)还原为相应的1,2,3,4-四氢衍生物(II),并用钯制木炭将其脱氢为完全芳族化合物(III)。也可以通过适当的2-(5-取代的3-苯并[ b ]噻吩基)乙胺与乙醛或苯甲醛的Pictet-Spengler反应制备四氢化合物(II)。
Studies on Cerebral Protective Agents. X. Synthesis and Evaluation of Anticonvulsant Activities for Novel 4,5,6,7-Tetrahydrothieno(3,2-c)pyridines and Related Compounds.
1-thienyl-1,2,3,4-tetrahydroisoquinolines and relatedcompounds, in which the benzene rings of (+)-1 (FR115427) were replaced with heteroaromatic rings such as thiophene, furan, benzothiophene and indole, were synthesized and evaluated for anticonvulsant activity against i.c.v. N-methyl-D-aspartate (NMDA)-induced seizures in mice. Among these compounds, (+)-4-methyl-4-phenyl-4,5,6,7-tetrahydrothieno[3