(19)

(11)

EP 0 626 958 A1

(12)

(43) Date of publication: 07.12.1994 Bulletin 1994/49 (21) Application number: 93903941.0 (22) Date of filing: 09.02.1993

(51) International Patent Classification (IPC):  C07D 305/ 08( . ) C07D 405/ 12( . ) A01N 47/ 36( . ) C07D 521/ 00( . ) (86) International application number: PCT/EP1993/000316 (87) International publication number: WO 1993/017016 (02.09.1993 Gazette 1993/21)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 21.02.1992 CH 19920000539 (71) Applicant: CIBA-GEIGY AG CH-4002 Basel (CH)	(72) Inventors: JAU, Beat CH-4147 Aesch (CH) KÜHLMEYER, Rainer D-7817 Ihringen 2 (DE)