The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 10, 1995
Filed:
Apr. 20, 1994
Pfizer Inc., New York, NY (US);
Abstract
##STR1## Compounds of formula (I) or a biolabile ester thereof, or a pharmaceutically acceptable salt of either, wherein R.sup.l, R.sup.2, R.sup.3 and R.sup.4 are each independently selected from H or C.sub.1 -C.sub.4 alkyl; R.sup.5 is (CH.sub.2).sub.m SO.sub.2 R.sup.6, (CH.sub.2).sub.m NHSO.sub.2 R.sup.6 or (CH.sub.2).sub.m NHCOR.sup.7 ; R.sup.6 and R.sup.7 are C.sub.1 -C.sub.6 alkyl, C.sub.1 -C.sub.3 perfluoroalkyl(CH.sub.2).sub.n, C.sub.3 -C.sub.6 cycloalkyl(CH.sub.2).sub.n, aryl(CH.sub.2).sub.n or heteroaryl(CH.sub.2).sub.n ; or R.sup.6 is NR.sup.8 R.sup.9 ; R.sup.8 is H or C.sub.1 -C.sup.4 alkyl; R.sup.9 is C.sub.1 -C.sub.6 alkyl, C.sub.3 -C.sub.6 cycloalkyl(CH.sub.2).sub.n, aryl(CH.sub.2).sub.n or heteroaryl(CH.sub.2).sub.n ; or R.sup.8 and R.sup.9 together with the nitrogen atom to which they are attached form a 5- to 7-membered heterocyclic ring which may optionally incorporate a carbon-carbon double bond or a further hetero atom linkage selected from O, S, NH, N(C.sub.1 -C.sub.4 alkyl) and N(C.sub.1 -C.sub.5 alkanoyl), and which may optionally be substituted with one to three substituents each independently selected from C.sub.1 -C.sub.4 alkyl and C.sub.1 -C.sub.4 alkoxy, and which may optionally be benzo-fused; X is CH.sub.2, CHCH.sub.3, C(OH)CH.sub.3, C.dbd.CH.sub.2 or O; m is 0 or 1; n is 0, 1, 2 or 3; and Het is 3- or 4-pyridyl or 1-imidazolyl; with the proviso that when Het is 1-imidazolyl then X is CH.sub.2 or CHCH.sub.3, are combined thromboxane A.sub.2 synthetase inhibitors and thromboxane A.sub.2 /endoperoxide antagonists of utility in the treatment of disease conditions in which thromboxane A.sub.2 is a causative agent.