PYRIDAZINONE-, PYRAZOLONE- AND PYRIDONE-NAPHTHERIDINONE COMPOUNDS, CARDIOTONIC COMPOSITIONS INCLUDING SAME, AND THEIR USES - Patent 0438446

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EP 0 438 446 A1

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(43)	Date of publication:
	31.07.1991 Bulletin 1991/31

(21)	Application number: 89911189.0

(22)	Date of filing: 28.09.1989

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International Patent Classification (IPC):

A61K 31/ 435^{( . )}
A61K 31/ 505^{( . )}
A61P 9/ 00^{( . )}
C07D 471/ 04^{( . )}
C07D 487/ 04^{( . )}

A61K 31/ 495^{( . )}
A61K 31/ 55^{( . )}
A61P 9/ 04^{( . )}
C07D 471/ 10^{( . )}

(86)	International application number:
	PCT/US1989/004265

(87)	International publication number:
	WO 1990/003790 (19.04.1990 Gazette 1990/09)

(84)	Designated Contracting States:
	AT BE CH DE FR GB IT LI LU NL SE

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Priority:

11.10.1988 US 19880255728
11.10.1988 US 19880255749

(71)	Applicant: RORER INTERNATIONAL (OVERSEAS) INC
	Wilmington, DE 19810 (US)

(72)	Inventors:
	SPADA, Alfred, Paul Ambler, PA 19002 (US) STUDT, William, Lyon Harleysville, PA 19438 (US) CAMPBELL, Henry, Flud North Wales, PA 19454 (US) KUHLA, Donald, Ernest Doylestown, PA 18901 (US) TUCKER, Thomas North Wales, PA 19454 (US)

(74)	Representative: Le Pennec, Magali, et al
	RHONE-POULENC RORER SA, Direction des Brevets, 20 Avenue Raymond Aron F-92160 Antony F-92160 Antony (FR)

(54)	PYRIDAZINONE-, PYRAZOLONE- AND PYRIDONE-NAPHTHERIDINONE COMPOUNDS, CARDIOTONIC COMPOSITIONS INCLUDING SAME, AND THEIR USES