(19)

(11)

EP 0 804 447 A1

(12)

(43) Date of publication: 05.11.1997 Bulletin 1997/45 (21) Application number: 96909514.0 (22) Date of filing: 20.02.1996

(51) International Patent Classification (IPC):  C07D 417/ 04( . ) (86) International application number: PCT/US1996/002512 (87) International publication number: WO 1996/026212 (29.08.1996 Gazette 1996/39)

(84) Designated Contracting States: CH DE ES FR GB IT LI SE (30) Priority: 07.03.1995 YU 19950000151 (71) Applicant: ICN Pharmaceuticals, Inc. Costa Mesa, CA 92626 (US)	(72) Inventors: LEWIS, Arthur, F. Houston, TX (US) RAJU, Natarajan Kendall Park, NJ 08824 (US) BHARADWAJ, Ramesh Nowalk, CA 90650 (US) PEJANOVIC, Vjera 11000 Belgrade (YU) RAMASAMY, Kandasamy Laguna Hills, CA 92653 (US) (74) Representative: Viering, Jentschura & Partner  Postfach 22 14 43 80504 München 80504 München (DE)