Synthesis and Reactions of Some Heterocyclic Candidates Based on 2-Amino-4,5,6,7-tetrahydrobenzo[b]thiophene Moiety as Anti-Arrhythmic Agents
作者:Mohamed G. Assy、Mohamed H. Sherif、Abd El-Galil E. Amr、Osama I. Abdelsalam、Mohamed A. Al-Omar、Mohamed M. Abdalla、Islam Ragab
DOI:10.1002/jhet.1554
日期:2013.7
In continuation of our previous work, a series of novel thiophene derivatives 4, 5, 6, 8, 9, 9a, 9b, 9c, 9d, 9e, 10, 10a, 10b, 10c, 10d, 10e, 11, 12, 13, 14, 15, 16 were synthesized by the reaction of ethyl 2‐amino‐4,5,6,7‐tetrahydrobenzo[b]thiophene‐3‐carboxylate (1) or 2‐amino‐4,5,6,7‐tetrahydrobenzo[b]thiophene‐3‐carbonitrile (2) with different organic reagents. Fusion of 1 with ethylcyanoacetate
在我们以前的工作中,一系列新的噻吩衍生物的延续4,5,6,8,9,图9a,图9b,图9c,图9d,图9e,10,10A,10B,10C,10D,10E,11,12,13,14,15,16是由2-氨基-4,5,6,7-四氢苯并[b]噻吩-3-羧酸乙酯的反应(合成1)或使用不同有机试剂的2-氨基-4,5,6,7-四氢苯并[b]噻吩-3-腈(2)。1与氰基乙酸乙酯或顺丁烯二酸酐的融合分别得到相应的噻吩恶嗪酮衍生物4和N-噻吩基苹果酰亚胺衍生物5。用氯乙酰氯将1酰化,得到酰胺6,将其与硫氰酸铵环化,得到相应的N-噻吩基噻唑衍生物8。另一方面,1与取代的芳基异硫氰酸酯衍生物的反应得到相应的硫脲衍生物9a,9b,9c,9d,9e,它们在乙醇钠的作用下环化,得到相应的N-取代的硫代嘧啶衍生物10a,10b,10c,10d,10e。的缩合2与回流,得到腈衍生物相应的酰亚胺乙酸酸酐11,12,13。类似地,