Pyridopyrimidinone antianginal agents

US5591742A · kind A · utility

Assignee

• PFIZER INC. · US

Inventors

• Andrew Simon Bell · London, GB
• Nicholas K. Terrett · Brookline, US

Key dates

• Filing date: Jan 31, 1995
• Grant date: Jan 7, 1997
• Expiry date: Jan 31, 2015

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61P43/00
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Compounds of the formula ##STR1## and pharmaceutically acceptable salts thereof, wherein R.sup.1 is H, C.sub.1 -C.sub.4 alkyl CN or CONR.sup.4 R.sup.5 ; R.sup.2 is C.sub.2 -C.sub.4 alkyl; R.sup.3 is SO.sub.2 NR.sup.6 R.sup.7, NO.sub.2, NH.sub.2, NHCOR.sup.8 NHSO.sub.2 R.sup.8 or N(SO.sub.2 R.sup.8).sub.2 ; R.sup.4 and R.sup.5 are each independently selected from H and C.sub.1 -C.sub.4 alkyl; R.sup.6 and R.sup.7 are each independently selected from H and C.sub.1 -C.sub.4 alkyl optionally substituted with CO.sub.2 R.sup.9, OH, pyridyl 5-isoxazolin-3-onyl, morpholino or 1-imidazolidin-2-onyl; or together with the nitrogen atom to which they are attached form a pyrrolidino, piperidino, morpholino, 1-pyrazolyl or 4-(NR.sup.10)-1-piperazinyl group wherein any of said groups may optionally be substituted with one or two substituents selected from C.sub.1 -C.sub.4 alkyl, CO.sub.2 R.sup.9, NH.sub.2 and OH; R.sup.8 is C.sub.1 -C.sub.4 alkyl or pyridyl; R.sup.9 is H or C.sub.1 -C.sub.4 alkyl; and R.sup.10 is H, C.sub.1 -C.sub.4 alkyl or (hydroxy) C.sub.2 -C.sub.3 alkyl; are selected cGMP PDE inhibitors useful in the treatment of, inter alia, cardiovascular disorders such as angina, hypertensi…