Highly convergent synthesis of a rebeccamycin analog with benzothioeno(2,3-a)pyrrolo(3,4-c)carbazole as the aglycone
作者:Jianji Wang、Nachimuthu Soundarajan、Nian Liu、Kurt Zimmermann、B. Narasimhulu Naidu
DOI:10.1016/j.tetlet.2004.12.068
日期:2005.2
A highly convergent, scalable synthesis of the rebeccamycin analog 2 was demonstrated in seven steps and 31% overall yield based on the N-protected building block dibromomaleimide 7. The practical synthesis of other two building blocks, 5,6-difluoro-3-benzothiopheneboronic acid 6 and 5,6-difluoroindole 8, is described.
的利拜卡霉素类似物的高会聚的,可扩展的合成2在基于所述七个步骤和31%的总收率证实ñ -保护的构建块dibromomaleimide 7。描述了另外两个结构单元5,6-二氟-3-苯并噻吩硼酸6和5,6-二氟吲哚8的实际合成。