Construction of Azaisoflavone Derivatives by Hypervalent Iodine Reagent-Mediated Oxidative Rearrangement of 2’-Nitrochalcone
摘要:
Fabrication of a synthetic azaisoflavone skeleton from 2'-nitrochalcone was done using oxidative rearrangement with a hypervalent iodine reagent. A key intermediate compound, aminoacetal, was prepared from readily available 2'-nitrochalcone via a PhI(OH)OTs-mediated rearrangement, followed by reduction of the nitro group. A variety of azaisoflavones were obtained in moderate to high yields by treatment of the intermediate compound under acidic conditions.
has been employed to synthesize a variety of aza-flavanones and their α-glucosidase inhibitory activity is evaluated using acarbose, miglitol and voglibose as reference standards. Molecular modeling studies were performed for all compounds to identify the important binding modes responsible for the inhibition activity of α-glucosidase which helped find key interactions between the enzyme and the active
Fabrication of a synthetic azaisoflavone skeleton from 2'-nitrochalcone was done using oxidative rearrangement with a hypervalent iodine reagent. A key intermediate compound, aminoacetal, was prepared from readily available 2'-nitrochalcone via a PhI(OH)OTs-mediated rearrangement, followed by reduction of the nitro group. A variety of azaisoflavones were obtained in moderate to high yields by treatment of the intermediate compound under acidic conditions.