C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
C07D 471/04 (2006.01) A61K 31/519 (2006.01) A61P 3/10 (2006.01) A61P 9/12 (2006.01) A61P 11/00 (2006.01) A61P 15/10 (2006.01)
Patent
CA 2438294
The present invention is directed to a pyridopyrimidine or a naphthyridine derivative of the formula (I): (see formula I) wherein R1 is an optionally substituted nitrogen-containing heterocyclic group, an optionally substituted amino group or an optionally substituted alkoxy group; R2 is a hydrogen atom or a lower alkyl group; R3 is a hydrogen atom, an optionally substituted lower alkyl group or an optionally substituted heteroaryl group; R4 is a hydrogen atom, a lower alkyl group, or an optionally esterified or amidated carboxyl group; R5 is a lower alkyl group which may be optionally substituted by a group selected from an optionally substituted aryl group, an optionally substituted heteroaryl group and a di-lower alkylamino group; and one of X and Y is a group of the formula: =CH- and the other is nitrogen atom, or X and Y are both nitrogen atoms, or a pharmaceutically acceptable salt thereof. These compounds exhibit excellent P DEV inhibitory activities, and are useful in the prophylaxis or treatment of penile erectile dysfunction and other functional disorders of cGMP-signaling.
L'invention concerne un dérivé de pyridopyrimidine ou naphthyridine représenté par la formule générale (I), dans laquelle R<1> est éventuellement un groupe hétérocyclique azoté substitué, etc. ; R<2> est hydrogène ou alkyle inférieur ; R<3> est hydrogène, alkyle inférieur éventuellement substitué, etc. ; R<4> est hydrogène, alkyle inférieur, COOH, etc. ; R<5> est hydrogène, aryle éventuellement substitué, etc. ; et un élément parmi X et Y représente CH et l'autre azote ou bien X et Y représentent tous deux azote, ou un sel pharmaceutiquement acceptable dudit dérivé. Ledit dérivé et son sel présentent une excellente activité inhibitrice de la PDE V et sont utiles en tant que traitement préventif/remède contre la dysérection.
Hikota Masataka
Kikkawa Kohei
Koga Yuichi
Omori Kenji
Yamada Koichiro
Kirby Eades Gale Baker
Mitsubishi Tanabe Pharma Corporation
Tanabe Seiyaku Co. Ltd.
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