(19)

(11)

EP 0 027 793 A1

(12)

(43) Date of publication: 06.05.1981 Bulletin 1981/18 (21) Application number: 79901166.0 (22) Date of filing: 27.04.1979

(51) International Patent Classification (IPC):  C07K 14/ 56( . ) A61K 38/ 00( . ) (86) International application number: PCT/US1979/000268 (87) International publication number: WO 1980/002375 (13.11.1980 Gazette 1980/26)

(84) Designated Contracting States: CH DE FR GB SE (71) Applicant: HEM RESEARCH, INC. Rockville, MD 20852 (US)	(72) Inventors: CARTER, William A. Springville NY 14141 (US) JOHNSON, Frederick H., Jr. Kensington MD 20795 (US)