(19)

(11)

EP 0 773 716 A1

(12)

(43) Date of publication: 21.05.1997 Bulletin 1997/21 (21) Application number: 96918369.0 (22) Date of filing: 07.06.1996

(51) International Patent Classification (IPC):  A61L 2/ 00( . ) C12N 7/ 06( . ) C07D 493/ 04( . ) (86) International application number: PCT/US1996/009616 (87) International publication number: WO 1996/039818 (19.12.1996 Gazette 1997/03)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 07.06.1995 US 19950486821 07.06.1995 US 19950476842 (71) Applicant: Cerus Corporation Concord, CA 94520 (US)	(72) Inventors: COOK, David Walnut Creek, CA 94595 (US) WOLLOWITZ, Susan Walnut Creek, CA 94598 (US) NERIO, Aileen Santa Clara, CA 95051 (US) (74) Representative: Glawe, Delfs, Moll & Partner  Patentanwälte Liebherrstrasse 20 80538 München 80538 München (DE)