Table 1 List of the 44 confirmed hit molecules retrieved from the HTS campaign as potential N-protein ligands.

From: Discovery and structural characterization of chicoric acid as a SARS-CoV-2 nucleocapsid protein ligand and RNA binding disruptor

Compound

IC50 (µM)

+ Error*

− Error*

Chebulinic acid

0.2

0.0

0.0

L-Chicoric acid

0.5

0.1

0.1

Punicalagin

0.7

0.1

0.0

Punicalin

0.7

0.1

0.1

Suramin

0.8

0.1

0.1

Tannic acid

1.4

0.2

0.2

Chlorophyllin B

2.2

0.2

0.3

Corilagin

2.4

0.5

0.4

4,5-Dicaffeoylquinic acid

3.0

0.5

0.3

Methyl Blue

4.2

0.3

0.3

Embelin

5.0

0.9

0.7

Linaclotide

5.5

0.6

0.5

Isochlorogenic acid A

5.5

1.0

0.8

Sennoside A

5.7

0.8

0.7

Lusutrombopag

6.0

0.6

0.5

(R)-(-)-Gossypol acetic acid

6.4

0.4

0.4

Idasanutlin

6.5

0.7

0.6

Sulfamerazine

6.5

0.9

0.8

Eltrombopag

7.1

0.9

0.9

Gossypol acetic acid

7.1

0.5

0.4

IOWH-032

7.7

0.9

0.8

Anacardic Acid

7.7

0.9

0.7

Pranlukast (hemihydrate)

7.8

1.1

1.0

Eltrombopag

8.1

1.0

0.9

Succinobucol

8.1

0.6

0.5

RNPA1000

9.6

1.8

1.4

TMC647055

10.0

1.2

1.0

Montelukast

10.3

1.1

1.0

Micafungin

10.4

0.9

0.8

Zafirlukast

10.4

1.6

1.4

Resazurin

10.5

1.7

1.4

Verteporfin

10.8

3.4

2.6

Chlorophyllin A

10.8

1.2

1.0

Surfactin

11.1

1.5

1.3

Pentagalloylglucose

11.6

1.9

1.7

Hexachlorophene

13.0

1.6

1.3

Ertapenem sodium

13.8

1.4

1.3

MK 0893

14.4

1.1

0,9

Butenafine

15.7

1.3

1.2

Oleic acid

15.7

0.9

0.8

Simeprevir

16.5

0.9

0.9

Sofalcone

18.5

1.6

1.5

Bithionol

23.0

5.6

4.6

Gallic acid

23.3

3.3

2.9

  1. Compounds are ranked by their IC50 values for blocking the N protein-RNA1 interaction. Phenyl propanoids with dicaffeoyl motif are highlighted in bold.
  2. *Reported errors are deviation from mean value for upper (+ Error) and lower (− Error) limits of 95% confidence intervals.