(19)
(11) EP 1 342 788 B8

(12) CORRECTED EUROPEAN PATENT SPECIFICATION
Note: Bibliography reflects the latest situation

(15) Correction information:
Corrected version no 1 (W1 B1)

(48) Corrigendum issued on:
17.01.2007 Bulletin 2007/03

(45) Mention of the grant of the patent:
31.05.2006 Bulletin 2006/22

(21) Application number: 01270617.2

(22) Date of filing: 11.12.2001
(51) International Patent Classification (IPC): 
C12P 41/00(2006.01)
(86) International application number:
PCT/JP2001/010861
(87) International publication number:
WO 2002/048383 (20.06.2002 Gazette 2002/25)

(54)

PROCESS FOR PRODUCING OPTICALLY ACTIVE (4R)-1,3-THIAZOLIDINE-4-CARBOXYLIC ACID

VERFAHREN ZUR HERSTELLUNG VON OPTISCH AKTIVER (4R)-1,3-THIAZOLIDIN-4-CARBOXYLSÄURE

PROCEDE DE PRODUCTION D'ACIDE (4R)-1,3-THIAZOLIDINE-4-CARBOXYLIQUE ACTIF AU NIVEAU OPTIQUE

(84) Designated Contracting States:
DE GB IE NL

(30) Priority: 11.12.2000 JP 2000375805
19.02.2001 JP 2001041385
28.05.2001 JP 2001158363

(43) Date of publication of application:
10.09.2003 Bulletin 2003/37

(73) Proprietor: MITSUBISHI GAS CHEMICAL COMPANY, INC.
Tokyo 100-0005 (JP)

(72) Inventors:
  • TAMURA, Yutaka, Niigata Resch Lab. Mitsubishi Co
    Niigata 950-3112 (JP)
  • KATO, Takahiro, Niigata Resch Lab. Mitsubishi Co
    Niigata 950-3112 (JP)
  • NAKAMURA, Go, Niigata Resch Lab. Mitsubishi Co
    Niigata 950-3112 (JP)
  • KONDO, Toshio, Niigata Resch Lab. Mitsubishi Co
    Niigata-shi, Niigata 950-3112 (JP)

(74) Representative: Bannerman, David Gardner et al
Withers & Rogers LLP Goldings House, 2 Hays Lane
London SE1 2HW
London SE1 2HW (GB)


(56) References cited: : 
EP-A- 0 193 113
EP-A1- 0 574 135
 EP-A1- 0 344 044
EP-A2- 0 494 716
   
  • KALLEN R G: "The mechanism of reactions involving Schiff base intermediates. Thiazolidine formation from L-cysteine and formaldehyde." JOURNAL OF THE AMERICAN CHEMICAL SOCIETY. UNITED STATES NOV 1971, vol. 93, no. 23, November 1971 (1971-11), pages 6236-6248, XP002275889 ISSN: 0002-7863
   
Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention).