作者:Leonid G. Voskressensky、Svetlana Kovaleva、Tatiana N. Borisova、Alexandr B. Eresko、Valery S. Tolkunov、Sergey V. Tolkunov、Victor N. Khrustalev、Alexey V. Varlamov
DOI:10.1080/00397911.2011.581880
日期:2012.11.15
Abstract A novel domino reaction of tetrahydrobenzofuro[3,2-c] or [2,3-c]pyridines with dimethylacetylene dicarboxylate (DMAD) or methyl propiolate (MP) resulted in the formation of spirobenzofuranpyridines in moderate yields. The spirobenzofuran derivatives reported may be considered analogs of the antifungal drug griseofulvin. GRAPHICAL ABSTRACT