(19)
(11) EP 0 734 374 A1

(12)

(43) Date of publication:
02.10.1996 Bulletin 1996/40

(21) Application number: 95900893.0

(22) Date of filing: 05.12.1994
(51) International Patent Classification (IPC): 
C07D 295/ 18( . )
A61K 31/ 22( . )
A61K 31/ 335( . )
A61K 31/ 535( . )
A61P 1/ 16( . )
A61P 15/ 00( . )
A61P 43/ 00( . )
C07C 229/ 16( . )
C07D 295/ 185( . )
C09K 3/ 00( . )
 A61K 31/ 215( . )
A61K 31/ 265( . )
A61K 31/ 357( . )
A61K 31/ 5375( . )
A61P 13/ 02( . )
A61P 25/ 28( . )
C07C 227/ 18( . )
C07C 235/ 06( . )
C07D 317/ 40( . )
(86) International application number:
PCT/IB1994/000388
(87) International publication number:
WO 1995/016663 (22.06.1995 Gazette 1995/26)
(84) Designated Contracting States:
AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE

(30) Priority: 16.12.1993 EP 19930810886

(71) Applicant: CIBA-GEIGY AG
4002 Basel (CH)

(72) Inventors:
  • GASPARINI, Fabrizio
    CH-4415 Lausen (CH)
  • LEUTERT, Thomas
    CH-4142 Münchenstein (CH)
  • FARLEY, David, L.
    CH-4058 Basle (CH)

   


(54) N,N'-BIS(2-HYDROXYBENZYL)ETHYLENEDIAMINE-N,N'-DIACETIC ACID DERIVATIVES AS CHELATING AGENTS