(19)

(11)

EP 0 489 061 A1

(12)

(43) Date of publication: 10.06.1992 Bulletin 1992/24 (21) Application number: 90912565.0 (22) Date of filing: 24.08.1990

(51) International Patent Classification (IPC):  A61K 51/ 10( . ) A61K 51/ 12( . ) (86) International application number: PCT/AU1990/000372 (87) International publication number: WO 1991/002547 (07.03.1991 Gazette 1991/06)

(84) Designated Contracting States: CH DE FR GB IT LI NL (30) Priority: 24.08.1989 AU 19890005960 (71) Applicant: AUSTRALIAN NUCLEAR SCIENCE AND TECHNOLOGY ORGANISATION Lucas Heights New South Wales 2234 (AU)	(72) Inventors: LEE, Fook-Thean Gymea Bay, NSW 2227 (AU) BONIFACE, Graeme Como, NSW 2226 (AU) (74) Representative: Ben-Nathan, Laurence Albert, et al  Urquhart-Dykes & Lord 91 Wimpole Street London W1M 8AH London W1M 8AH (GB)