(19)

(11)

EP 0 102 995 A1

(12)

(43) Date of publication: 21.03.1984 Bulletin 1984/12 (21) Application number: 83900941.0 (22) Date of filing: 08.03.1983

(51) International Patent Classification (IPC):  C07H 21/ 04( . ) C07H 21/ 00( . ) (86) International application number: PCT/GB1983/000068 (87) International publication number: WO 1983/003098 (15.09.1983 Gazette 1983/21)

(84) Designated Contracting States: AT BE CH DE FR LI LU NL SE (30) Priority: 08.03.1982 GB 19820006766 08.03.1982 GB 19820006767 02.09.1982 GB 19820025053 02.09.1982 GB 19820025054 (71) Applicant: CELLTECH LIMITED Slough Berkshire SL1 4DY (GB)	(72) Inventors: EATON, Michael Anthony William Buckinghamshire (GB) PATEL, Thakorbhai, Parshotambhai Buckinghamshire (GB) GOODERS, Alan Paul Oxfordshire (GB) (74) Representative: Votier, Sidney David, et al  CARPMAELS & RANSFORD 43, Bloomsbury Square London WC1A 2RA London WC1A 2RA (GB)