The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 06, 2020

Filed:

Apr. 12, 2017
Applicant:

Sinoclone Ltd., Hong Kong, CN;

Inventors:

Bojian Zheng, Vancouver, CA;

Shuofeng Yuan, Hong Kong, CN;

Yi Tsun Richard Kao, Hong Kong, CN;

Jie Zhou, Hong Kong, CN;

Assignee:

Sinoclone Ltd, Hong Kong, CN;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
A61K 31/37 (2006.01); A61K 31/196 (2006.01); A61P 31/16 (2006.01); A61K 9/00 (2006.01);
U.S. Cl.
CPC ...
A61K 31/37 (2013.01); A61K 31/196 (2013.01); A61P 31/16 (2018.01); A61K 9/0043 (2013.01);
Abstract

The present invention is a method of inhibiting the replication of an influenza virus by using an antiviral compound to inhibit the binding of an influenza-virus PB2 subunit to an RNA cap. The antiviral compound may be 5-iodo-2-[(3-methyl-4-nitrobenzoyl)amino]benzoic acid; 3,3'-[(4-methylphenyl)methylene]bis(4-hydroxy-2H-chromen-2-one); or 7-(4-hydroxy-2-oxo-2H-chromen-3-yl)-6H,7H,8Hchromeno[3,4′:5,6]pyrano[3,2-c]chromene-6,8-dione. The aforementioned antiviral compounds have successfully inhibited the replication of influenza virus in vitro and in vivo in mouse models.


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