(19)

(11)

EP 0 207 116 A1

(12)

(43) Date of publication: 07.01.1987 Bulletin 1987/02 (21) Application number: 86900179.0 (22) Date of filing: 06.12.1985

(51) International Patent Classification (IPC):  A61K 38/ 21( . ) (86) International application number: PCT/GB1985/000555 (87) International publication number: WO 1986/003412 (19.06.1986 Gazette 1986/13)

(84) Designated Contracting States: BE CH DE FR IT LI LU NL SE (30) Priority: 06.12.1984 GB 19840030883 08.05.1985 GB 19850011658 (71) Applicant: TYRRELL, David Arthur John Salisbury, Wiltshire SP5 2RN (GB)	(72) Inventor: TYRRELL, David Arthur John Salisbury, Wiltshire SP5 2RN (GB) (74) Representative: Cardnell, Peter Harry Morley  Patent Department National Research Development Corporation 101 Newington Causeway London SE1 6BU London SE1 6BU (GB)