one-step synthetic protocol toward multifunctionalized m-terphenyls 5 and sulfonyl m-terphenyls 6 is developed from substituted chalcones 1 and allyl sulfone 2 in good yields via a [3C+3C] annulation. The NaH-mediated annulation features transition metal catalyst-free condition. Chalcones 1 with the functional groups tolerance are easily prepared via Claisen–Schmidt condensation of substituted benzaldehydes
quaterphenyls 3 or cyclopropanes 4 is developed from substituted chalcones 1 and sulfones 2 in good yields via a regioselective [3C+3C] or [1C+2C] annulation. The reaction features mild conditions, multisubstitution, and functional groups tolerance and is transition metal catalyst-free. The protocol provides a novel alternative to the conventional methodologies for the synthesis of quaterphenyls or
Pyrazolines as potential anti-Alzheimer's agents: DFT, molecular docking, enzyme inhibition and pharmacokinetic studies
作者:Valkiria Machado、Arthur R. Cenci、Kerolain F. Teixeira、Larissa Sens、Tiago Tizziani、Ricardo J. Nunes、Leonardo L. G. Ferreira、Rosendo A. Yunes、Louis P. Sandjo、Adriano D. Andricopulo、Aldo S. de Oliveira
DOI:10.1039/d2md00262k
日期:——
We report the synthesis and investigation of the anticholinesterase potential of pyrazolines, using experimental and theoretical techniques.