(19)

(11)

EP 0 703 903 A1

(12)

(43) Date of publication: 03.04.1996 Bulletin 1996/14 (21) Application number: 94918395.0 (22) Date of filing: 16.06.1994

(51) International Patent Classification (IPC):  C07D 233/ 64( . ) C07D 233/ 54( . ) C07B 57/ 00( . ) C07D 233/ 58( . ) (86) International application number: PCT/FI1994/000263 (87) International publication number: WO 1995/000492 (05.01.1995 Gazette 1995/02)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 18.06.1993 GB 19930012669 (71) Applicant: ORION-YHTYMÄ OY SF-02200 Espoo (FI)

(72) Inventors: KARJALAINEN, Arto, Johannes FIN-90650 Oulu (FI) VIRTANEN, Raimo, Einari FIN-21290 Rusko (FI) KARJALAINEN, Arja, Leena FIN-90650 Oulu (FI) PARHI, Seppo, Sulevi, Lennart FIN-90810 Kiviniemi (FI) ELORANTA, Maire, Marjatta FIN-90240 Oulu (FI) HAAPALINNA, Antti, Sakari FIN-20360 Turku (FI) (74) Representative: Sexton, Jane Helen, et al  J.A. KEMP & CO. 14 South Square Gray's Inn London WC1R 5LX London WC1R 5LX (GB)