Department of Pharmacognosy of Pharmacy Shams University;
Department of Pharmaceutical Chemistry of Pharmacy British University in Egypt;
Department of Pharmaceutical Chemistry of Pharmacy Shams University;
Department of Biochemistry of Pharmacy Shams University;
Center for Drug Discovery and Development Research Shams University;
CORONAVIRUS; natural products; SARS-CoV-2 main protease; molecular docking; molecular dynamics; TEA;