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Extract from the Register of European Patents

EP About this file: EP3917935

EP3917935 - SYNTHETIC PROCESS AND NOVEL INTERMEDIATES [Right-click to bookmark this link]
StatusThe application has been withdrawn
Status updated on  22.12.2023
Database last updated on 17.05.2024
FormerRequest for examination was made
Status updated on  05.11.2021
FormerThe international publication has been made
Status updated on  08.08.2020
Most recent event   Tooltip22.12.2023Withdrawal of applicationpublished on 24.01.2024  [2024/04]
Applicant(s)For all designated states
Avista Pharma Solutions, Inc.
3501 Tricenter Blvd.
Suite C
Durham, NC 27713 / US
[2021/49]
Inventor(s)01 / SPEAKE, Jason, D.
1714 Woodstone Drive
Winston-Salem, NC 27127 / US
02 / PERALES, Joe, B.
507 North Waters Edge Drive
Durham, NC 27703 / US
03 / BECK, Brent, Christopher
1910 Park Stream Court
Apex, NC 27502 / US
04 / PANDI, Bharathi
112 Deer Isle Court
Cary, NC 27519 / US
[N/P]
Former [2021/49]01 / SPEAKE, Jason, D.
Winston-Salem, NC 27127 / US
02 / PERALES, Joe, B.
Durham, NC 27703 / US
03 / BECK, Brent, Christopher
Apex, NC 27502 / US
04 / PANDI, Bharathi
Cary, NC 27519 / US
Representative(s)Potter Clarkson
Chapel Quarter
Mount Street
Nottingham NG1 6HQ / GB
[N/P]
Former [2021/49]Potter Clarkson
The Belgrave Centre
Talbot Street
Nottingham NG1 5GG / GB
Application number, filing date20748460.129.01.2020
[2021/49]
WO2020US15556
Priority number, dateUS201962798735P30.01.2019         Original published format: US 201962798735 P
[2021/49]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2020160074
Date:06.08.2020
Language:EN
[2020/32]
Type: A1 Application with search report 
No.:EP3917935
Date:08.12.2021
Language:EN
The application published by WIPO in one of the EPO official languages on 06.08.2020 takes the place of the publication of the European patent application.
[2021/49]
Search report(s)International search report - published on:KR06.08.2020
(Supplementary) European search report - dispatched on:EP14.10.2022
ClassificationIPC:C07F5/02, C07D487/04, A61K31/69, A61K31/4985, A61P19/02, A61P29/00
[2021/49]
CPC:
C07D487/04 (EP,US); C07F5/025 (EP)
Designated contracting statesAL,   AT,   BE,   BG,   CH,   CY,   CZ,   DE,   DK,   EE,   ES,   FI,   FR,   GB,   GR,   HR,   HU,   IE,   IS,   IT,   LI,   LT,   LU,   LV,   MC,   MK,   MT,   NL,   NO,   PL,   PT,   RO,   RS,   SE,   SI,   SK,   SM,   TR [2021/49]
TitleGerman:SYNTHETISCHER PROZESS UND NEUARTIGE ZWISCHENPRODUKTE[2021/49]
English:SYNTHETIC PROCESS AND NOVEL INTERMEDIATES[2021/49]
French:PROCÉDÉ DE SYNTHÈSE ET NOUVEAUX INTERMÉDIAIRES[2021/49]
Entry into regional phase02.08.2021National basic fee paid 
02.08.2021Search fee paid 
02.08.2021Designation fee(s) paid 
02.08.2021Examination fee paid 
Examination procedure02.08.2021Examination requested  [2021/49]
17.03.2023Amendment by applicant (claims and/or description)
18.12.2023Application withdrawn by applicant  [2024/04]
Fees paidRenewal fee
27.01.2022Renewal fee patent year 03
27.01.2023Renewal fee patent year 04
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Patent Court
See the Register of the Unified Patent Court for opt-out data
Responsibility for the accuracy, completeness or quality of the data displayed under the link provided lies entirely with the Unified Patent Court.
Documents cited:Search[A]WO2006019768  (SCHERING CORP [US], et al) [A] 1-8* the method disclosed on page 113, method B: reacting 3-iodo-7-pyridin-4-yl-imidazo[l,2-a]pyridine and 2-[4-(4,4,5, 5-tetramethyl-[l,3,2]dioxaborolan-2-yl)-phenyl]-N-(3-trifluoromethyl-phenyl)-acetamide to give the C-C-coupled product *;
 [A]WO2006091671  (LILLY CO ELI [US], et al) [A] 1-8 * C-C coupling reaction between 1004B and 1004C on page 114 *;
 [T]WO2019245590  (AVISTA PHARMA SOLUTIONS INC [US]) [T] 1 * method for C-C coupling with a 3-halo-imidazo-pyrazine on page 23: *;
 [T]WO2020160075  (AVISTA PHARMA SOLUTIONS INC [US]) [T] 1-8
International search[A]WO03087061  (PFIZER PHARMA [JP], et al) [A] 1-8;
 [A]WO2011041713  (GLAXOSMITHKLINE LLC [US], et al) [A] 1-8;
 [A]CN104649945  (UNIV CHINA AGRICULTURAL) [A] 1-8;
 [A]  - Kazunari Nakao, Et Al, "CJ-023,423, a Novel, Potent and Selective Prostaglandin EP4 Receptor Antagonist with Antihyperalgesic Properties", THE JOURNAL OF PHARMACOLOGY AND EXPERIMENTAL THERAPEUTICS, (20070101), vol. 322, no. 2, doi:10.1124/jpet.107.122010, pages 686 - 694, XP055358062 [A] 1-8

DOI:   http://dx.doi.org/10.1124/jpet.107.122010
 [A]  - Vito Virgina De; Saba Alessandro; Lee Hong-Ki; Owen Helen; Poapolathep Amnart; Giorgi Mario, "Detection and quantification of the selective EP4 receptor antagonist CJ-023423 (grapiprant) in canine plasma by HPLC with spectrofluorimetric detection", Journal of Pharmaceutical and Biomedical Analysis, Elsevier B.V., AMSTERDAM, NL, AMSTERDAM, NL, (20151107), vol. 118, doi:10.1016/j.jpba.2015.11.004, ISSN 0731-7085, pages 251 - 258, XP029343680 [A] 1-8

DOI:   http://dx.doi.org/10.1016/j.jpba.2015.11.004
by applicantWO0232422
 WO0232900
 WO03087061
 WO03086371
 US2004220189
 US2005009832
 WO2006019768
 WO2006091671
 WO2006095268
 WO2011041713
 WO2011102149
 WO2011113862
 WO2011151259
 US2013195848
 WO2014078813
 WO2014148053
 CN104649945
 WO2018013430
 WO2019245590
 WO2020160075
    - KAZUNARI NAKAO et al., "CJ-023,423 a Novel, Potent and Selective Prostaglandin EP4 Receptor Antagoninst with Antihyperalgesic Properties", The Journal of Pharmacology and Experimental Therapeutics, (20070101), vol. 322, no. 2, doi:10.1124/jpet.107.122010, pages 686 - 694, XP055358062

DOI:   http://dx.doi.org/10.1124/jpet.107.122010
    - DE VITO et al., "Detection and quantification of the selective EP4 receptor antagonist CJ-023423 (grapiprant) in canine plasma by HPLC with spectrofluorimetric detection", Journal of Pharmaceutical and Biomedical Analysis, (20151107), vol. 118, doi:10.1016/j.jpba.2015.11.004, pages 251 - 258, XP029343680

DOI:   http://dx.doi.org/10.1016/j.jpba.2015.11.004
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The EPO accepts no responsibility for the accuracy of data originating from other authorities; in particular, it does not guarantee that it is complete, up to date or fit for specific purposes.