Efficient Regioselective Synthesis and Potential Antitumor Evaluation of Isoxazolo[5,4-<i>b</i>]pyridines and Related Annulated Compounds
作者:Wafaa S. Hamama、Mona E. Ibrahim、Hanafi H. Zoorob
DOI:10.1002/ardp.201100258
日期:2012.6
the corresponding isoxazolo[5,4‐b]pyridines. Treatment of 1 with 2,6‐dibenzylidenecyclohexanone or 2‐benzylidenedimedone afforded the corresponding isoxazolo[5,4‐b]quinoline derivatives. 4,6,8,9‐Tetrahydroisoxazolo[5,4‐b]quinolin‐5‐one derivative was also obtained by multicomponent condensation reaction of 1 with dimedone and benzaldehyde. Heterocyclic annulation of the isoxazolo[5,4‐b]pyridine system