(19)

(11)

EP 0 542 915 A1

(12)

(43) Date of publication: 26.05.1993 Bulletin 1993/21 (21) Application number: 91916698.0 (22) Date of filing: 06.08.1991

(51) International Patent Classification (IPC):  A61K 9/ 00( . ) A61K 9/ 24( . ) A61K 9/ 22( . ) (86) International application number: PCT/US1991/005574 (87) International publication number: WO 1992/002211 (20.02.1992 Gazette 1992/05)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IT LI LU NL SE (30) Priority: 09.08.1990 US 19900565273 (71) Applicant: ENDOCON, INC. South Walpole, MA 02071 (US)	(72) Inventor: LEONARD, Robert, J. Lynnfield, MA 01940 (US) (74) Representative: Jump, Timothy John Simon, et al  Venner Shipley & Co. 20 Little Britain London EC1A 7DH London EC1A 7DH (GB)