(19)

(11)

EP 0 533 753 A1

(12)

(43) Date of publication: 31.03.1993 Bulletin 1993/13 (21) Application number: 91910937.0 (22) Date of filing: 03.06.1991

(51) International Patent Classification (IPC):  C07H 23/ 00( . ) (86) International application number: PCT/US1991/003880 (87) International publication number: WO 1991/019730 (26.12.1991 Gazette 1991/29)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB IT LI LU NL SE (30) Priority: 14.06.1990 US 19900550001 05.11.1990 US 19900609497 (71) Applicant: MONSANTO COMPANY St. Louis Missouri 63167 (US)	(72) Inventors: BASHKIN, James, Keane University City, MO 63130 (US) MODAK, Anil, Shrikrishna Maryland Heights, MO 63043 (US) STERN, Michael, Keith St. Louis, MO 63130 (US) (74) Representative: Ernst, Hubert, et al  Monsanto Services International S.A. Avenue de Tervuren 270/272 B-1150 Brussels B-1150 Brussels (BE)