<p>The Severe acute respiratory
syndrome coronavirus 2 (SARS-CoV-2) has caused coronavirus disease-2019 (COVID-19)
pandemic. Despite the intensive research currently, there are no therapeutics
and vaccines available. As the main protease (M<sup>Pro</sup>) plays a vital
role in SARS-CoV-2, it is an attractive drug target. Herein we report,
potential inhibitors form natural products and synthetic drugs against M<sup>Pro</sup>. In detail, we studied the interaction of
inhibitors (Curcumin, Theaflavin, Deserpidine, Betulinic acid, Sinigrin, Emodin,
Leptodactylone, Synthetic drugs, Lopinavir, Ritonavir, Indinavir, Amprenavir, Darunavir,
Nelfinavir, Remdesivir, Saquinavir, Sivelestat, Galidesivir, and Favipiravir) with
the catalytic site of M<sup>Pro</sup>. Lastly, ADME (Absorption, Distribution,
Metabolism, and Excretion) properties of Natural products and synthetic drugs
are explored. We identified eight potential inhibitors against M<sup>Pro</sup>.
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