Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Having -c- – wherein x is chalcogen – bonded directly to...
Reexamination Certificate
2001-12-04
2004-01-13
McKane, Joseph K. (Department: 1626)
Drug, bio-affecting and body treating compositions
Designated organic active ingredient containing
Having -c-, wherein x is chalcogen, bonded directly to...
C548S235000
Reexamination Certificate
active
06677364
ABSTRACT:
FIELD OF THE INVENTION
This invention is in the field of antiinflammatory pharmaceutical agents and specifically relates to compounds, compositions and methods for treating disorders mediated by cyclooxygenase-2 or 5-lipoxygenase, such as inflammation and allergic conditions such as asthma.
BACKGROUND OF THE INVENTION
Prostaglandins play a major role in the inflammation process, and the inhibition of prostaglandin production, especially production of PGG
2
, PGH
2
and PGE
2
, has been a common target of antiinflammatory drug discovery. However, common non-steroidal antiinflammatory drugs (NSAIDs) that are active in reducing the prostaglandin-induced pain and swelling associated with the inflammation process are also active in affecting other prostaglandin-regulated processes not associated with the inflammation process. Thus, use of high doses of most common NSAIDs can produce severe side effects, including life threatening ulcers, that limit their therapeutic potential. An alternative to NSAIDs is the use of cortiscosteroids, which have even more drastic side effects, especially when long term therapy is involved.
Previous NSAIDs have been found to prevent the production of prostaglandins by inhibiting enzymes in the human arachidonic acid/prostaglandin pathway including the enzyme cyclooxygenase (COX). The recent discovery of an inducible enzyme associated with inflammation (named “cyclooxygenase-2 (COX-2)” or “prostaglandin G/H synthase II”) provides a viable target of inhibition which more effectively reduces inflammation and produces fewer and less drastic side effects.
In another portion of the arachidonic acid pathway, physiologically active leukotrienes, such as leukotriene B
4
(LTB
4
), leukotriene C
4
(LTC
4
) and leukotriene D
4
(LTD
4
) and other metabolites, are produced by the 5-lipoxygenase-mediated (5-LO) oxidation of arachidonic acid. These leukotrienes have been implicated in various inflammation-related disorders and allergic diseases, and thus compounds which inhibit 5-lipoxygenase are useful in the treatment of disease states in which leukotrienes play an important role.
It is believed that selective dual inhibitors of both cyclooxygenase-2 and 5-lipoxygenase, which affect the two enzymes at low concentrations, will more completely and permanently affect the damage caused by the various diseases and disorders mediated by cyclooxygenase-2 and 5-lipoxygenase but without the gastrointestinal side effects associated with traditional NSAIDs.
The references below that disclose antiinflammatory activity, show continuing efforts to find a safe and effective antiinflammatory agent. The novel compounds disclosed herein are such safe and also effective antiinflammatory agents furthering such efforts. The invention's compounds are found to show usefulness in vivo as antiinflammatory agents with minimal side effects. The compounds disclosed herein preferably selectively inhibit cyclooxygenase-2 over cyclooxygenase-1.
Compounds which selectively inhibit cyclooxygenase-2 have been described in U.S. Pat. Nos. 5,380,738, 5,344,991, 5,393,790 and WO documents WO94/15932, WO94/27980, WO95/00501, WO94/13635, WO94/20480, and WO94/26731.
Compounds which inhibit 5-lipoxygenase have been described in U.S. Pat. Nos. 5,364,877, 5,302,603, 5,234,950, 5,098,932 and 5,334, 865, among others.
Compounds which inhibit cyclooxygenase and 5-lipoxygenase have been described in U.S. Pat. Nos. 5,298,521, 5,242,940, 5,234,939, and 5,356,898, among others. However, these previous mixed inhibitors do not selectively inhibit cyclooxygenase-2 and therefore still cause the gastrointestinal side effects which substantially reduce their usage and effectiveness.
The invention's compounds are found to show usefulness in vivo as dual inhibitors of cyclooxygenase-2 and 5-lipoxygenase with minimal side effects.
DESCRIPTION OF THE INVENTION
A class of compounds useful in treating cyclooxygenase-2 and 5-lipoxygenase-mediated disorders is defined by Formula I:
wherein A is a 5- or 6-member ring substituent selected from partially unsaturated or unsaturated heterocyclo and carbocyclic rings, wherein A is optionally substituted with a radical selected from acyl, halo, alkyl, haloalkyl, cyano, nitro, carboxyl, alkoxy, oxo, aminocarbonyl, alkoxycarbonyl, carboxyalkyl, cyanoalkyl, and hydroxyalkyl,
wherein Y Is a radical selected from oxy, thio, sulfinyl, sulfonyl, alkyl, alkenyl, alkynyl, alkyloxy, alkylthio, alkylcarbonyl, cycloalkyl, aryl, haloalkyl, hydroxyalkyl, hydroxyalkyloxy, hydroxyalkyloxyalkyl, hydroxyalkylthio, hydroxyalkylthioalkyl-, oximinoalkoxy, oximinoalkoxyalkyl, (alkyl) oximinoalkoxy, (alkyl)oximinoalkoxyalkyl, oximinoalkylthio, oximinoalkylthioalkyl, (alkyl)oximinoalkylthio, (alkyl)oximinoalkylthioalkyl, carbonylalkyloxy, carbonylalkyloxyalkyl, carbonylalkylthio, carbonylalkylthioalkyl, heterocyclo, cycloalkenyl, aralkyl, heterocycloalkyl, acyl, alkylthioalkyl, alkyloxyalkyl, alkenylthio, alkynylthio, alkenyloxy, alkynyloxy, alkenylthioalkyl, alkynylthioalkyl, alkenyloxyalkyl, alkynyloxyalkyl, arylcarbonyl, aralkylcarbonyl, aralkenyl, alkylarylalkynyloxy, alkylarylalkenyloxy, alkylarylalkynylthio, alkylarylalkenylthio, haloalkylcarbonyl, alkoxyalkyl, alkylaminocarbonylalkyl, heteroaralkoxyalkyl, heteroaryloxyalkyl, heteroarylthioalkyl, heteroaralkylthioalkyl, heteroaralkoxy, heteroaralkylthio, heteroaryloxy, heteroarylthio, arylthioalkyl, aryloxyalkyl, haloaryloxyalkyl, aralkylthioalkyl, aralkoxyalkyl, alkoxyaralkoxyalkyl, alkoxycarbonylalkyl, alkoxycarbonylcyanoalkenyl, aminocarbonylalkyl, N-alkylaminocarbonyl, N-arylaminocarbonyl, N,N-dialkyaminocarbonyl, N-alkyl-N-arylaminocarbonyl, cycloalkylaminocarbonyl, heterocycloaminocarbonyl, carboxyalkylaminocarbonyl, alkylcarbonylalkyl, aralkoxycarbonylalkylaminocarbonyl, haloaralkyl, carboxyhaloalkyl, alkoxycarbonylhaloalkyl, aminocarbonylhaloalkyl, alkylaminocarbonylhaloalkyl, N-alkylamino, N,N-dialkylamino, N-arylamino, N-aralkylamino, N-alkyl-N-aralkylamino, N-alkyl-N-arylamino, aminoalkyl, N-alkylaminoalkyl, N,N-dialkylaminoalkyl, N-arylaminoalkyl, N-aralkylaminoalkyl, N-alkyl-N-aralkylaminoalkyl, N-alkyl-N-arylaminoalkyl, aminoalkoxy, aminoalkoxyalkyl, aminoalkylthio, aminoalkylthioalkyl, cycloalkyloxy, cycloalkylalkyloxy, cycloalkythio, cycloalkylalkylthio, aryloxy, aralkoxy, arylthio, aralkylthio, alkylsulfinyl, alkylsulfonyl, aminosulfonyl, N-alkylaminosulfonyl, N-arylaminosulfonyl, arylaminosulfonyl, arylsulfonyl, N,N-dialkylaminosulfonyl, N-alkyl-N-arylaminosulfonyl,
wherein Ar is selected from aryl and heteroaryl, wherein Ar is optionally substituted with one or two substituents selected from halo, hydroxyl, mercapto, amino, nitro, cyano, carbamoyl, alkyl, alkenyloxy, alkoxy, alkylthio, alkylsulfinyl, alkylsulfonyl, alkylamino, dialkylamino, haloalkyl, alkoxycarbonyl, N-alkylcarbamoyl, N,N-dialkylcarbamoyl, alkanoylamino, cyanoalkoxy, carbamoylalkoxy, alkoxycarbonylalkoxy and
wherein R
1
is one or more substituents selected from heterocyclo, cycloalkyl, cycloalkenyl and aryl, wherein R
1
is optionally substituted at a substitutable position with one or more radicals selected from alkyl, haloalkyl, cyano, carboxyl, alkoxycarbonyl, hydroxyl, hydroxyalkyl, haloalkoxy, amino, alkylamino, arylamino, nitro, alkoxyalkyl, alkylsulfinyl, halo, alkoxy and alkylthio;
wherein R
2
is selected from alkyl and amino;
wherein R
3
and R
4
together form a group of the formula —B—X—B
1
which together with the carbon atom to which B and B
1
are attached, defines a ring having 6 ring atoms, wherein B and B
1
, which may be the same or different, each is alkylene and X is oxy, and which ring may bear one, two or three substituents, which may be the same or different, selected from hydroxyl, alkyl, alkoxy, alkenyloxy and alkynyloxy;
wherein R
5
is selected from hydroxyl, alkoxy, alkylcarbonyloxy, arylcarbonyloxy, carboxyl, aminocarbonyl, alkylaminocarbonyl, alkoxycarbonyl, acyl, and cyano;
wherein R
6
is selected from hydrido, alkyl, aryl and aralkyl;
wherein R
7
is selected from alkyl, alkoxy, alkenyl and alkynyl;
where
Brown David L.
Carter Jeffery S.
Devadas Balekudru
Graneto Matthew J.
Lu Hwang-Fun
G.D. Searle & Co.
McDonnell & Boehnen Hulbert & Berghoff
McKane Joseph K.
Rogers Kathy L.
Wright Sonya
LandOfFree
Substituted sulfonylphenylheterocycles as cyclooxygenase-2... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Substituted sulfonylphenylheterocycles as cyclooxygenase-2..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Substituted sulfonylphenylheterocycles as cyclooxygenase-2... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3208061