(19)
(11) EP 0 259 362 A1

(12)

(43) Date of publication:
16.03.1988 Bulletin 1988/11

(21) Application number: 87900865.0

(22) Date of filing: 28.01.1987
(51) International Patent Classification (IPC): 
C07B 61/ 00( . )
C07D 253/ 10( . )
C07D 487/ 04( . )
C07D 253/ 08( . )
C07D 487/ 00( . )
(86) International application number:
PCT/GB1987/000055
(87) International publication number:
WO 1987/004432 (30.07.1987 Gazette 1987/17)
(84) Designated Contracting States:
AT BE CH DE FR GB IT LI LU NL SE

(30) Priority: 28.01.1986 GB 19860002038

(71) Applicants:
  • A.H. ROBINS COMPANY LIMITED
    West Sussex RH13 5QP (GB)
  • UNIVERSITY COLLEGE CARDIFF CONSULTANTS LTD.
    Cardiff (GB)

(72) Inventors:
  • HEWLINS, Michael, John, Edward
    Cardiff CF2 5NZ (GB)
  • JONES, Huw, Onllwyn
    Cardiff CF2 4SY (GB)

(74) Representative: Kearney, Kevin David Nicholas 
KILBURN & STRODE 30 John Street
London, WC1N 2DD
London, WC1N 2DD (GB)

   


(54) PREPARATION OF 3-DIMETHYLAMINO-7-METHYL-1,2,4-BENZOTRIAZINE-1-OXIDE AND AZAPROPAZONE