(19)

(11)

EP 1 198 461 A2

(12)

(88) Date of publication A3: 16.08.2001 (43) Date of publication: 24.04.2002 Bulletin 2002/17 (21) Application number: 00947487.5 (22) Date of filing: 17.07.2000

(51) International Patent Classification (IPC)7: C07D 305/00 (86) International application number: PCT/US0019/524 (87) International publication number: WO 0105/779 (25.01.2001 Gazette 2001/04)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL Designated Extension States: AL LT LV MK RO SI (30) Priority: 15.07.1999 US 143973 P 23.12.1999 US 171892 P (71) Applicant: Cytoclonal Pharmaceutics, Inc. Dallas, TX 75235 (US)	(72) Inventors: ARAD, Dorit Dallas, TX 75248 (US) BOLLON, Arthur, P. Dallas, TX 75234 (US) POLAND, Bradley, W. Dallas, TX 75287 (US) YOUNG, David, C. Flower Mound, TX 75028 (US) (74) Representative: Weber-Quitzau, Martin, Dr.  Uexküll & StolbergPatentanwälteBeselerstrasse 4 22607 Hamburg 22607 Hamburg (DE)