(19)

(11)

EP 0 758 236 A1

(12)

(43) Date of publication: 19.02.1997 Bulletin 1997/08 (21) Application number: 94916628.0 (22) Date of filing: 29.04.1994

(51) International Patent Classification (IPC):  A61K 31/ 465( . ) (86) International application number: PCT/US1994/004795 (87) International publication number: WO 1995/029676 (09.11.1995 Gazette 1995/48)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE Designated Extension States: SI (71) Applicant: PHARMACO BEHAVIORAL ASSOCIATES, INC. Bloomington, MN 55420 (US)	(72) Inventor: KEENAN, Robert M., Apartment 209 Baltimore, MD 21224 (US) (74) Representative: Maiwald, Walter, Dr. Dipl.-Chem., et al  Maiwald & Partner, Poccistrasse 11 80336 München 80336 München (DE)