EP2272840 - Bibliographic data

Intermediate compound for the preparation of halichondrin analogs

Last update 03/06/2025
Legal status Brevet déchu
Origin Européen

(73) Holder

EISAI R&D MANAGEMENT CO., LTD.

6-10, Koishikawa 4-chome, Bunkyo-ku
Tokyo 112-8088
Japon
(72) Inventors

Zheng, Wanjun

14 Devonshire Lane
Londonderry, NH 03053
États-Unis d'Amérique

Yu, Melvin J.

21 Candlewood Drive
Andover MA 01810
États-Unis d'Amérique
(74) Agent

Mail recipient

STANSFIELD, KEVIN

Eisai Europe Limited Legal - IP Department European Knowledge Centre Mosquito Way
Hatfield, Herts AL10 9SN
Royaume-Uni

(21) Request number EP10010774.7
(22) Request date 16/06/1999

(11) Publication number EP2272840
Publication date 22/08/2012

(54) Title of the invention Intermediate compound for the preparation of halichondrin analogs
(51) International classification C07D 313/00C07D 323/00C07D 325/00C07D 493/22A61K 31/35G01N 33/48G01N 33/50
International classification (before reform) None

Claimed priority

(31) Number: 89682 P
(32) Date: 17/06/1998
(33) Country: US

Initial application None
Divisional application None

Expected annuity Annuity: 15 - Amount: 290 € - Due date 01/07/2013
Surtax: 15 - Amount: 58 € - Due date 02/01/2014
Last annuity None

Publication

BREVETS D'INVENTION DESIGNANT MC DELIVRES PAR l'OEB - bulletin 2012/3, of 30/09/2012

History

Publication de la délivrance du brevet européen - Legal date 22/08/2012


Entrée en période de grâce du brevet d'invention - Legal date 01/07/2013


Déchéance du brevet d'invention après période de grâce - Legal date 01/07/2013