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Vitamin K2 Intermediates - EP3018116

The patent EP3018116 was granted to Kappa Bioscience on Oct 28, 2020. The application was originally filed on Sep 24, 2009 under application number EP15193746A. The patent is currently recorded with a legal status of "Revoked".

EP3018116

KAPPA BIOSCIENCE
Application Number
EP15193746A
Filing Date
Sep 24, 2009
Status
Revoked
Aug 4, 2023
Publication Date
Oct 28, 2020
External Links
Slate, Register, Google Patents

Patent Summary

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Patent Oppositions (2)

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LESAFFREJul 27, 2021BANDPAY & GREUTERADMISSIBLE
NATTOPHARMA ASAJul 27, 2021WEICKMANN & WEICKMANN PARTMBBADMISSIBLE

Patent Citations (11) New

Patent citations refer to prior patents cited during different phases such as opposition or international search.

Citation PhasePublication Number
OPPOSITIONJPS5795932
OPPOSITIONUS4089873
OPPOSITIONUS4199531
OPPOSITIONUS4270003
OPPOSITIONUS4388312
OPPOSITIONUS5229385
OPPOSITIONWO2014058330
OTHERUS4089873
OTHERWO2010035000
SEARCHUS4089873
SEARCHUS4199531

Non-Patent Literature (NPL) Citations (10) New

NPL citations refer to non-patent references such as research papers, articles, or other publications cited during examination or opposition phases.

Citation PhaseReference Text
OPPOSITION- Alexander Linwood Simmons, "Quinone Formation via Ceric Ammonium Nitrate Oxidations of 2-Alkyl-1,4-dialkoxybenzenes", Thesis East Carolina University, (20160401), ISBN 978-1-339-98714-9, pages 1 - 106, XP055933883
OPPOSITION- Jacob et al., "A Convenient Synthesis of Quinones from Hydroquinone Dimethyl Ethers, Oxidative Demethylation with Ceric Ammonium Nitrate", J. Org. Chem., (19760101), vol. 41, no. 22, pages 3627 - 3629, XP055933648
OPPOSITION- Y. MASAKI et al., "Synthetic Studies on Isoprenoidquinones. II. Syntheses of Ubiquinone-10, Phylloquinone, and Menaquinone-4 by a Chain-Extending Method Utilizing Terminally Functionalized Isoprenoidhydroquinones", Chem. Pharm. Bull, (19840000), pages 3959 - 3967, XP008057512
OPPOSITION- O. ISLER et al., "94. Synthese und Isolierung von Vitamin K2 und isoprenologen Verbindungen", H elvetica Chimica Acta., (19580000), doi:10.1002/hlca.660410323, pages 786 - 807, XP008161462
OPPOSITION- Syper et al., "Synthesis of ubiquinone and menaquinone analogues by oxidative demethylation of alkenylhydroquinone ethers with argentic oxide or ceric ammonium nitrat", Tetrahedron, AMSTERDAM, NL , (19800101), vol. 36, no. 1, doi:10.1016/0040-4020(80)85034-4, ISSN 0040-4020, pages 123 - 129, XP028087074
OPPOSITION- SUHARA et al., "Method for the determination of vitamin K homologues in human plasma using high-performance liquid chromatography-tandem mass spectrometry", Analytical Chemistry, (20050000), vol. 77, doi:10.1021/ac0489667, pages 757 - 763, XP055441579
OPPOSITION- J.-H. MIN et al., "The Friedel-Crafts Allylation of a Prenyl Group Stabilized by a Sulfone Moiety: Expeditious Syntheses of Ubiquinones and Menaquinones", J. Org. Chem., (20030000), doi:10.1021/jo0350155, pages 7925 - 7927, XP002342639
OPPOSITION- B. C. BRINDABAN et al., "Dealkylation of ethers. A review", Organic Preparation and Procedures International, (19960000), vol. 28, no. 4, doi:10.1080/00304949609356549, page 387, XP009515416
OPPOSITION- RANU et al., "Dealkylation of Ethers. A Review", Organic Preparations and Procedures International, (19960000), vol. 28, doi:10.1080/00304949609356549, pages 371 - 409, XP009515416
OPPOSITION- Jarrahpour et al., "Synthesis of Novel N-(4-Ethoxyphenyl) Azetidin-2-ones and Their Oxidative N-Deprotection by Ceric Ammonium Nitrate", Molecules, (20070101), vol. 12, no. 10, doi:10.3390/12102364, pages 2364 - 2379, XP055933601

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