(19)
(11) EP 2 229 397 A2

(12)

(88) Date of publication A3:
27.08.2009

(43) Date of publication:
22.09.2010 Bulletin 2010/38

(21) Application number: 08857936.2

(22) Date of filing: 24.11.2008
(51) International Patent Classification (IPC): 
C07F 9/58(2006.01)
(86) International application number:
PCT/KR2008/006912
(87) International publication number:
WO 2009/072769 (11.06.2009 Gazette 2009/24)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
Designated Extension States:
AL BA MK RS

(30) Priority: 07.12.2007 KR 20070126592

(71) Applicant: Dongwoo Syntech Co., Ltd.
Chungcheongbuk-do 369-900 (KR)

(72) Inventors:
  • SHIN, Jae-Yeon
    Yongin-si Gyeonggi-do 449-788 (KR)
  • KIM, Young-Deuck
    Suwon-si Gyeonggi-do 441-350 (KR)

(74) Representative: Schrell, Andreas et al
Gleiss Grosse Schrell & Partner Patentanwälte Rechtsanwälte Leitzstrasse 45
70469 Stuttgart
70469 Stuttgart (DE)

   


(54) PROCESS FOR PREPARING RISEDRONATE SODIUM AS ANHYDROUS AND HYDRATE FORMS