(19)
(11)
EP 0 662 970 A1
(12)
(43)
Date of publication:
19.07.1995
Bulletin 1995/29
(21)
Application number:
93921023.0
(22)
Date of filing:
28.09.1993
(51)
International Patent Classification (IPC):
C07D
239/
50
( . )
A61P
31/
12
( . )
A61K
31/
52
( . )
C07D
473/
40
( . )
(86)
International application number:
PCT/GB1993/002027
(87)
International publication number:
WO 1994/007892
(
14.04.1994
Gazette 1994/09)
(84)
Designated Contracting States:
BE CH DE FR GB IT LI NL
(30)
Priority:
30.09.1992
GB 19920020585
(71)
Applicant:
SMITHKLINE BEECHAM PLC
Brentford, Middlesex TW8 9EP (GB)
(72)
Inventor:
HANSON, John Christopher, SmithKline Beecham Phar
Epsom, Surrey KT18 5XQ (GB)
(74)
Representative:
Tocher, Pauline
SmithKline Beecham plc Corporate Intellectual Property SB House Great West Road
Brentford, Middlesex TW8 9BD
Brentford, Middlesex TW8 9BD (GB)
(54)
PROCESS FOR THE PREPARATION OF 2-AMINO-6-CHLOROPURINE