(19)
(11) EP 1 073 663 A1

(12)

(43) Date of publication:
07.02.2001 Bulletin 2001/06

(21) Application number: 99917237.2

(22) Date of filing: 27.04.1999
(51) International Patent Classification (IPC)7: C07D 499/12, C07D 501/06
(86) International application number:
PCT/NL9900/247
(87) International publication number:
WO 9955/709 (04.11.1999 Gazette 1999/44)
(84) Designated Contracting States:
AT BE ES FR GB IT NL

(30) Priority: 29.04.1998 EP 98201399

(71) Applicant: DSM N.V.
6411 TE Heerlen (NL)

(72) Inventors:
  • LEENDERTS, Everardus, Johannes, Anthonius, Maria
    NL-3161 LL Rhoon (NL)
  • EL SAYAD, Hassan, Aly
    Cairo (EG)
  • WALRAVEN, Hubertus, Gerardus, Maria
    NL-2284 TM Rijswijk (NL)
  • WESSELING, Jolanda
    NL-3039 RJ Rotterdam (NL)

   


(54) PREPARATION OF BETA-LACTAM ANTIBIOTICS IN THE PRESENCE OF UREA OR AMIDE