(19)

(11)

EP 0 190 123 A1

(12)

(43) Date of publication: 13.08.1986 Bulletin 1986/33 (21) Application number: 84903011.0 (22) Date of filing: 20.07.1984

(51) International Patent Classification (IPC):  C07D 473/ 00( . ) (86) International application number: PCT/US1984/001168 (87) International publication number: WO 1986/000901 (13.02.1986 Gazette 1986/04)

(84) Designated Contracting States: AT BE CH DE FR GB LI LU NL SE (71) Applicants: GAUNTT, Charles, O. San Antonio, TX 78284 (US) OGILVIE, Kelvin, K. Quebec J5R 3M8 (CA)	(72) Inventors: GAUNTT, Charles, O. San Antonio, TX 78284 (US) OGILVIE, Kelvin, K. Quebec J5R 3M8 (CA) (74) Representative: Eyles, Christopher Thomas  BATCHELLOR, KIRK & CO. 2 Pear Tree Court Farringdon Road London, EC1R 0DS London, EC1R 0DS (GB)