(19)

(11)

EP 0 630 377 A1

(12)

(43) Date of publication: 28.12.1994 Bulletin 1994/52 (21) Application number: 93917370.0 (22) Date of filing: 26.01.1993

(51) International Patent Classification (IPC):  A01N 43/ 90( . ) C07D 305/ 08( . ) C07D 249/ 12( . ) C07D 487/ 04( . ) (86) International application number: PCT/EP1993/000171 (87) International publication number: WO 1993/016079 (19.08.1993 Gazette 1993/20)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 07.02.1992 CH 19920000379 (71) Applicant: CIBA-GEIGY AG CH-4002 Basel (CH)	(72) Inventor: TOBLER, Hans CH-4123 Allschwil (CH)