(19)
(11) EP 1 756 055 A1

(12)

(43) Date of publication:
28.02.2007 Bulletin 2007/09

(21) Application number: 05740139.0

(22) Date of filing: 18.03.2005
(51) International Patent Classification (IPC): 
C07D 209/20(2006.01)
(86) International application number:
PCT/EP2005/051271
(87) International publication number:
WO 2005/090306 (29.09.2005 Gazette 2005/39)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

(30) Priority: 19.03.2004 IT FI20040063

(71) Applicant: Biosphere S.p.A.
47023 Cesena (Forli') (IT)

(72) Inventors:
  • BONOMI, Luca
    I-47023 CESENA (IT)
  • MELDOLI, Maurizio
    I-47023 CESENA (IT)
  • MERIGHI, Roberto
    I-45025 FRATTA POLESINE (IT)

(74) Representative: Gervasi, Gemma et al
NOTARBARTOLO & GERVASI Srl, Corso di Porta Vittoria, 9
20122 Milano
20122 Milano (IT)

   


(54) PROCESS FOR THE PURIFICATION OF TRYPTOPHAN