AN IMPROVED SYNTHESIS OF 3-HYDROXY-4-AMINO-BENZONITRILE - Patent 1107948

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EP 1 107 948 A1

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(43)	Date of publication:
	20.06.2001 Bulletin 2001/25

(21)	Application number: 99943936.7

(22)	Date of filing: 26.08.1999

(51)	International Patent Classification (IPC)⁷: C07C 273/02, C07C 275/28, C07C 255/49, C07D 213/02, C07D 263/54

(86)	International application number:
	PCT/US9919/492

(87)	International publication number:
	WO 0012/468 (09.03.2000 Gazette 2000/10)

(84)	Designated Contracting States:
	AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

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Priority:

28.08.1998 US 98249 P

(71)	Applicant: Smithkline Beecham
	Philadelphia, PA 19103 (US)

(72)	Inventors:
	BAINE, Neil, H. Merion Station, PA 19066 (US) CLARK, William, M., Jr. Hamilton Square, NJ 08690 (US) ELDRIDGE, Ann, Marie Norristown, PA 19401 (US)

(74)	Representative: Connell, Anthony Christopher et al
	GlaxoSmithKline,Two New Horizons Court Brentford, Middlesex TW8 9EP Brentford, Middlesex TW8 9EP (GB)

(54)	AN IMPROVED SYNTHESIS OF 3-HYDROXY-4-AMINO-BENZONITRILE