(19)
(11) EP 1 404 681 A1

(12)

(43) Date of publication:
07.04.2004 Bulletin 2004/15

(21) Application number: 02745008.9

(22) Date of filing: 05.07.2002
(51) International Patent Classification (IPC)7C07D 495/04, C07D 409/04
(86) International application number:
PCT/CA2002/001017
(87) International publication number:
WO 2003/004502 (16.01.2003 Gazette 2003/03)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 06.07.2001 CA 2352520

(71) Applicant: Brantford Chemicals Inc.
Brantford,Ontario N3T 6B8 (CA)

(72) Inventors:
  • HORNE, Stephen, E.
    Burlington, Ontario L7R 1R5 (CA)
  • WEERATUNGA, Gamini
    Brantford, Ontario N3P 1R1 (CA)
  • COMANITA, Bogdan, M.
    London, Ontario N6G 3B1 (CA)
  • NAGIREDDY, Jaipal, Reddy
    Brantford, Ontario N3T 5Z1 (CA)
  • MCCONACHIE, Laura Kaye
    St. George, Ontario N0E 1N0 (CA)

(74) Representative: Howard, Paul Nicholas et al
Carpmaels & Ransford,43-45 Bloomsbury Square
London WC1A 2RA
London WC1A 2RA (GB)

   


(54) PROCESS FOR THE PREPARATION OF TETRAHYDROTHIENO [3,2-C] PYRIDINE DERIVATIVES