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Table 2. Binding affinity, PubChem Id, formula, binding affinity, IUPAC name, and 2D structure of selected SARS-CoV-2 Mpro inhibitors.

 

Ligand

PubChem Id

Formula

Binding Affinity

IUPAC Name

2D structure

α-ketoamide

6482451

C36H53N5O11

-7.3

(2S)-2-[[2-[[3-[[(2S)-2-[[(2S)-2-cyclohexyl-2-(2-methylpropoxycarbonylamino) acetyl] amino]-3-(1,3-dioxan-2-yl) propanoyl] amino]-2-oxohexanoyl] amino] acetyl] amino]-2-phenylacetic acid

Lupeol

259846

C30H50O

-12.5

(3b)-lup-20(29)-en-3-ol

α -amyrin

73170

C30H50O

-7.9

(3b)-urs-12-en-3-ol

Luteolin

5280445

C15H10O6

-7.4

2-(3,4-dihydroxyphenyl)-5,7-dihydroxy-4H-chromen-4-one