(19)

(11)

EP 0 127 636 A1

(12)

(43) Date of publication: 12.12.1984 Bulletin 1984/50 (21) Application number: 83903559.0 (22) Date of filing: 10.11.1983

(51) International Patent Classification (IPC):  C07D 503/ 00( . ) (86) International application number: PCT/GB1983/000283 (87) International publication number: WO 1984/002134 (07.06.1984 Gazette 1984/14)

(84) Designated Contracting States: CH DE FR GB LI NL (30) Priority: 25.11.1982 GB 19820033626 16.04.1983 GB 19830010346 (71) Applicant: BEECHAM GROUP PLC Brentford Middlesex TW8 9BD (GB)	(72) Inventors: DAVIES, John, Sydney Surrey (GB) HUNTER, Pamela, Ann Horsham Sussex (GB)