(19)

(11)

EP 0 712 401 A1

(12)

(43) Date of publication: 22.05.1996 Bulletin 1996/21 (21) Application number: 95921187.0 (22) Date of filing: 11.05.1995

(51) International Patent Classification (IPC):  C07D 401/ 12( . ) (86) International application number: PCT/SE1995/000519 (87) International publication number: WO 1995/032959 (07.12.1995 Gazette 1995/52)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE Designated Extension States: LT LV SI (30) Priority: 27.05.1994 WO 1994SE00511 (71) Applicant: Astra Aktiebolag 151 85 Södertälje (SE)	(72) Inventors: LINDBERG, Per, Lennart S-431 51 Mölndal (SE) SUNDEN, Gunnel, Elisabeth S-413 01 Göteborg (SE) VON UNGE, Per, Oskar, Sverker S-430 33 Fjäras (SE)