New fused pyrazines. Synthesis of pyrido[3′,2′:4,5]-thieno[2,3-<i>e</i>]pyrrolo[1,2-<i>a</i>]pyrazine derivatives
作者:H. S. El-Kashef、A. M. Kamal El-Dean、A. A. Geies、J. C. Lancelot、P. Dallemagne、S. Rault
DOI:10.1002/jhet.5570370618
日期:2000.11
The synthesis of the title compounds was achieved using the key intermediate ethyl 4,6-dimethyl-3-(pyrrol-1-yl)thieno[2,3-b]pyridine-2- carboxylate 2. This latter compound was obtained via the interaction of the thienopyridine amino ester 1 with 2,5 dimethoxytetrahydrofuran in acidic medium.
使用关键中间体乙基4,6-二甲基-3-(吡咯-1-基)噻吩并[2,3-达到的标题化合物的合成b吡啶-2-羧酸乙酯2.获得本后者化合物通过在噻吩并吡啶氨基酯1与2,5二甲氧基四氢呋喃在酸性介质中的相互作用