Pfizer Corporation

Takashi Mano

Rodney W Stevens

Yoshiyuki Okumura

Masami Nakane

Fumitaka Ito

Kazuo Ando

Kazunari Nakao

Akiyoshi Kawai

Takafumi Ikeda

Yoshinori Murata

Kunio Satake

Kaoru Shimada

Nobuko Asai

Benzimidazole cyclooxygenase-2 inhibitors

This invention provides a compound of the following formula:

Certain novel hydroxamic acid derivatives having the structure

Hydroxamic acid and N-hydroxyurea derivatives and their use

Novel compounds having the ability to inhibit 5-lipoxygenase enzyme and having the following formula I: ##STR1## and the pharmaceutically acceptable salts thereof, wherein Ar.sup.1 is a heterocyclic moiety which is selected from imidazolyl, pyrrolyl, pyrazolyl, 1,2,3-triazolyl, 1,2,4-triazolyl, indolyl, indazolyl and benzimidazolyl, which is bonded to X.sup.1 through a ring nitrogen atom, and which may be optionally substituted with one or two substituents selected from halo, hydroxy, cyano, amino, C.sub.1-4 alkyl and the like; X.sup.1 is a direct bond or C.sub.1-4 alkylene; Ar.sup.2 is phenylene optionally substituted with halo, hydroxy, cyano, amino and the like; X.sup.2 is --A--X-- or --X--A-- wherein A is a direct bond or C.sub.1-4 alkylene and X is oxy, thio, sulfinyl or sulfonyl; Ar.sup.3 is phenylene, pyridylene, thienylene, furylene, oxazolylene or thiazolylene optionally substituted with one or two substituents selected from halo, hydroxy, cyano, amino, C.sub.1-4 alkyl and the like; R.sup.1 and R.sup.2 are each C.sub.1-4 alkyl, or together they form a group of formula --D.sup.1 --Z--D.sup.2 -- which together with the carbon atom to which it is attached defines a ring having 3 to 8 atoms, wherein D.sup.1 and D.sup.2 are C.sub.1-4 alkylene and Z is a direct bond or oxy, thio, sulfinyl, sulfonyl, or vinylene, and D.sup.1 and D.sup.2 may be substituted by C.sub.1-3 alkyl; and Y is CONR.sup.3 R.sup.4, CN, C(R.sup.3).dbd.N--OR.sup.4, COOR.sup.3, COR.sup.3 or CSNR.sup.3 R.sup.4, wherein R.sup.3 and R.sup.4 are each H or C.sub.1-4 alkyl. These compounds are useful in the treatment or alleviation of inflammatory diseases, allergy and cardiovascular diseases in mammals and as the active ingredient in pharmaceutical compositions for treating such conditions.

5-lipoxygenase inhibitors

Imidazole lipoxygenase inhibitors

Novel compounds having the ability to inhibit 5-lipoxygenase enzyme and having the following formula I: ##STR1## and the pharmaceutically acceptable salts thereof, wherein Ar.sup.1 is a heterocyclic moiety which is selected from imidazolyl, pyrrolyl, pyrazolyl, 1,2,3-triazolyl, 1,2,4-triazolyl, indolyl, indazolyl and benzimidazolyl, which is bonded to X.sup.1 through a ring nitrogen atom, and which may be optionally substituted with one or two substituents selected from halo, hydroxy, cyano, amino, and C.sub.1-4 alkyl; X.sup.1 is a direct bond or C.sub.1-4 alkylene; Ar.sup.2 is phenylene optionally substituted with halo, hydroxy, cyano, and amino X.sup.2 is --A--X-- or --X--A-- wherein A is a direct bond or C.sub.1-4 alkylene and X is oxy, thio, sulfinyl or sulfonyl; Ar.sup.3 is phenylene, pyridylene, thienylene, furylene, oxazolylene or thiazolylene optionally substituted with one or two substituents selected from halo, hydroxy, cyano, amino and C.sub.1-4 alkyl; R.sup.1 and R.sup.2 are each C.sub.1-4 alkyl, or together they form a group of formula --D.sup.1 --Z--D.sup.2 -- which together with the carbon atom to which it is attached defines a ring having 3 to 8 atoms, wherein D.sup.1 and D.sup.2 are C.sub.1-4 alkylene and Z is a direct bond or oxy, thio, sulfinyl, sulfonyl, or vinylene, and D.sup.1 and D.sup.2 may be substituted by C.sub.1-3 alkyl; and Y is CONR.sup.3 R.sup.4, CN, C(R.sup.3).dbd.N--OR.sup.4, COOR.sup.3, COR.sup.3 or CSNR.sup.3 R.sup.4, wherein R.sup.3 and R.sup.4 are each H or C.sub.1-4 alkyl. These compounds are useful in the treatment or alleviation of inflammatory diseases, allergy and cardiovascular diseases in mammals and as the active ingredient in pharmaceutical compositions for treating such conditions.

Cycloalkyl hydroxyureas

Cyclopropyl N-hydroxyurea and N-hydroxyacetamides which inhibit

Compounds of formula I ##STR1## or salts thereof, where R is alkyl, phenyl, phenoxy or substituted phenyl and phenoxy; X is S or O; n is an integer of 1 or 2; A is --CH.sub.2 -- or --CH(CH.sub.3)--; and B is hydrogen or methyl, useful as antiallergy and antiinflammatory agents.

N-hydroxyurea derivatives as antiallergy and antiinflammatory agents

This invention relates to certain benzoxazolinones which inhibit lipoxygenase and/or cyclooxygenase enzymes. Such compounds are useful in inhibiting such enzymes, per se, and are useful in treating allergic and inflammatory conditions in a mammal. This invention also relates to methods of inhibiting lipoxygenase and/or cyclooxygenase in a mammal with such benzoxazolinones; methods of treating an allergic condition in a mammal with such compounds; methods of treating an inflammatory condition in a mammal with such compounds; and pharmaceutical compositions comprising the benzoxazolinones hereof.

Antiallergy and antiinflammatory benzoxazolinones

Certain 6-aryl- or 6-heteroaryl- alkylaminobenzoxazolones, and their pharmaceutically-acceptable salts, are dual inhibitors of lipoxygenase and cyclooxygenase enzymes, and so are useful as antiallergy and antiinflammatory agents.

Growing community of inventors

Handa, Japan

Takashi Mano