(19)

(11)

EP 0 389 607 A1

(12)

(43) Date of publication: 03.10.1990 Bulletin 1990/40 (21) Application number: 89910594.0 (22) Date of filing: 14.09.1989

(51) International Patent Classification (IPC):  C07D 311/ 24( . ) (86) International application number: PCT/AU1989/000399 (87) International publication number: WO 1990/002741 (22.03.1990 Gazette 1990/07)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 14.09.1988 AU 19880000419 (71) Applicant: BIOTA SCIENTIFIC MANAGEMENT PTY. LTD. Melbourne, VIC 3000 (AU)	(72) Inventors: VON ITZSTEIN, Laurence, Mark Northcote, VIC 3070 (AU) WHITE, Hume, Forrest Hawthorn, VIC 3122 (AU) (74) Representative: VOSSIUS & PARTNER  Postfach 86 07 67 D-81634 München D-81634 München (DE)