(19)
(11) EP 1 438 328 A1

(12)

(43) Date of publication:
21.07.2004 Bulletin 2004/30

(21) Application number: 02802077.4

(22) Date of filing: 25.10.2002
(51) International Patent Classification (IPC)7: C07K 1/14, C07C 7/10
(86) International application number:
PCT/SE2002/001892
(87) International publication number:
WO 2003/035672 (01.05.2003 Gazette 2003/18)
(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: 25.10.2001 SE 0103558

(71) Applicant: Lundonia Biotech AB
223 70 Lund (SE)

(72) Inventors:
  • NILSSON, Ulf
    S-229 94 Lund (SE)
  • BERGH, Anders
    S-431 49 Mölndal (SE)

(74) Representative: Henriksson, Dan Ragnar Mikael 
Awapatent ABP.O. Box 5117
200 71 Malmö
200 71 Malmö (SE)

   


(54) NOVEL METHOD FOR RECOVERY OF SQUARIC ACID MONO ESTERS IN BIOCONJUGATION CHEMISTRY