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Last Updated: May 5, 2024

Details for Patent: 11,261,198


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Which drugs does patent 11,261,198 protect, and when does it expire?

Patent 11,261,198 protects XOFLUZA and is included in two NDAs.

This patent has twenty-six patent family members in seventeen countries.

Summary for Patent: 11,261,198
Title:Process for preparing substituted polycyclic pyridone derivative and crystal thereof
Abstract: The present invention provides a process for preparing a compound of the formula (II): ##STR00001## wherein R.sup.2 is unsubstituted alkyl, characterized by reacting a compound of the formula (I): ##STR00002## wherein R.sup.1 is hydrogen or a protecting group other than unsubstituted alkyl, with a compound of the formula: R.sup.2--OH, wherein R.sup.2 is as defined above, in the presence of a sodium salt and/or a magnesium salt.
Inventor(s): Shibahara; Setsuya (Amagasaki, JP), Anan; Kosuke (Toyonaka, JP)
Assignee: SHIONOGI & CO., LTD. (Osaka, JP)
Application Number:16/310,897
Patent Claim Types:
see list of patent claims
Compound; Process;

Drugs Protected by US Patent 11,261,198

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Genentech Inc XOFLUZA baloxavir marboxil FOR SUSPENSION;ORAL 214410-001 Nov 23, 2020 RX Yes Yes ⤷  Try a Trial ⤷  Try a Trial Y ⤷  Try a Trial
Genentech Inc XOFLUZA baloxavir marboxil TABLET;ORAL 210854-001 Oct 24, 2018 DISCN Yes No ⤷  Try a Trial ⤷  Try a Trial Y ⤷  Try a Trial
Genentech Inc XOFLUZA baloxavir marboxil TABLET;ORAL 210854-002 Oct 24, 2018 RX Yes No ⤷  Try a Trial ⤷  Try a Trial Y ⤷  Try a Trial
Genentech Inc XOFLUZA baloxavir marboxil TABLET;ORAL 210854-003 Mar 18, 2021 RX Yes Yes ⤷  Try a Trial ⤷  Try a Trial Y ⤷  Try a Trial
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Patented / Exclusive Use >Submissiondate

Foreign Priority and PCT Information for Patent: 11,261,198

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
JapanJP2016-121453Jun 20, 2016
PCT Information
PCT FiledJune 19, 2017PCT Application Number:PCT/JP2017/022478
PCT Publication Date:December 28, 2017PCT Publication Number: WO2017/221869

International Family Members for US Patent 11,261,198

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Argentina 108812 ⤷  Try a Trial
Australia 2017282305 ⤷  Try a Trial
Brazil 112018076600 ⤷  Try a Trial
Canada 3027840 ⤷  Try a Trial
China 109311911 ⤷  Try a Trial
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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