Abstract
A one-pot synthetic strategy was developed for the synthesis of novel sulfamidophosphonates via a three-component Kabachnik-Fields reaction of sulfanilamide, triethyl phosphite, and various aldehyde using ultrasound irradiation. Seven organophosphorus derivatives were synthesized with high yields through this newly developed method. The target compounds were characterized by 1H, 31P, 13C NMR, and IR. The molecular structure of 4a was obtained by X-ray diffraction on the monocrystal. Crystal belongs to the orthorhombic system with space groups Pbca. Insight into the binding mode of the synthesized compounds (ligand) into the binding sites of SARS-CoV2 (PDF code: 5R80) was provided by docking studies, performed with the help of Maestro 9.0 docking software.
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