One-Pot Enantioselective Synthesis of Functionalized Pyranocoumarins and 2-Amino-4H-chromenes: Discovery of a Type of Potent Antibacterial Agent
2012
Zhang, Gen | Zhang, Yaohu | Yan, Jiexi | Chen, Ru | Wang, Shoulei | Ma, Yunxia | Wang, Rui
Function-oriented design and synthesis of chiral small molecules with novel activity is a key goal in modern organic chemistry. As multiple antibiotic-resistant pathogens are emerging and causing serious diseases, the need for practical routes for the development of new types of antibacterial agents is very urgent. Herein, we present a highly efficient process for the synthesis of optically active pyranocoumarins and 2-amino-4H-chromenes through an organocatalytic Knoevenagel/Michael/cyclization sequence, and the preliminary biological studies of these new heterocyclic compounds revealed potent antibacterial activity. This study provides a novel strategy for further research and development of new types of antibacterial agents effective against human pathogens.
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