(19)

(11)

EP 1 165 574 A1

(12)

(43) Date of publication: 02.01.2002 Bulletin 2002/01 (21) Application number: 00907776.9 (22) Date of filing: 03.03.2000

(51) International Patent Classification (IPC)7: C07F 9/653, C07F 15/00, C07B 53/00, C07D 263/06 (86) International application number: PCT/GB0000/758 (87) International publication number: WO 0061/589 (19.10.2000 Gazette 2000/42)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE Designated Extension States: AL LT LV MK RO SI (30) Priority: 08.04.1999 GB 9907895 (71) Applicant: THE TEXAS A&M UNIVERSITY SYSTEM College Station, TX 77843-3369 (US)	(72) Inventor: BURGESS, Kevin Bryan, TX 77802 (US) (74) Representative: Wishart, Ian Carmichael  Patents Department Johnson Matthey Technology Centre Blount's Court Sonning Common Reading, RG4 9NH Reading, RG4 9NH (GB)