Claims for Patent: 5,474,995

Summary for Patent: 5,474,995

Title:	Phenyl heterocycles as cox-2 inhibitors
Abstract:	The invention encompasses the novel compound of Formula I useful in the treatment of cyclooxygenase-2 mediated diseases, ##STR1## The invention also encompasses certain pharmaceutical compositions for treatment of cyclooxygenase-2 mediated diseases comprising compounds of Formula I.
Inventor(s):	Ducharme; Yves (Montreal, CA), Gauthier; Jacques Y. (Laval, CA), Prasit; Petpiboon (Kirkland, CA), Leblanc; Yves (Kirkland, CA), Wang; Zhaoyin (Pierrefond, CA), Leger; Serge (Dollard Des Ormeaux, CA), Therien; Michel (Laval, CA)
Assignee:	Merck Frosst Canada, Inc. (Kirkland, CA)
Application Number:	08/179,467
Patent Claims:	1. A compound of the formula XXXIII ##STR216## or a pharmaceutically acceptable salt thereof wherein: R.sup.1 is selected from the group consisting of (a) S(O).sub.2 CH.sub.3, (b) S(O).sub.2 NH.sub.2, (c) S(O).sub.2 NHC(O)CF.sub.3, (d) S(O)(NH)CH.sub.3, (e) S(O)(NH)NH.sub.2, (f) S(O)(NH)NHC(O)CF.sub.3, (g) P(O)(CH.sub.3)OH, and (h) P(O)(CH.sub.3)NH.sub.2, R.sup.2 is selected from the group consisting of (a) C.sub.1-6 alkyl, (b) C.sub.3, C.sub.4, C.sub.5, C.sub.6, and C.sub.7, cycloalkyl, (c) mono-, di- or tri-substituted phenyl wherein the substituent is selected from the group consisting of (1) hydrogen, (2) halo, (3) C.sub.1-6 alkoxy, (4) C.sub.1-6 alkylthio, (5) CN, (6) CF.sub.3, (7) C.sub.1-6 alkyl, (8) N.sub.3, (9) --CO.sub.2 H, (10) --CO.sub.2 --C.sub.1-4 alkyl, (11) --C(R.sup.5)(R.sup.6)--OH, (12) --C(R.sup.5)(R.sup.6)--O--C.sub.1-4 alkyl, and (13) --C.sub.1-6 alkyl--CO.sub.2 --R.sup.5 ; (d) mono-, di- or tri-substituted heteroaryl wherein the heteroaryl is a monocyclic aromatic ring of 5 atoms, said ring having one hetero atom which is S, O, or N, and optionally 1, 2, or 3 additional N atoms; or the heteroaryl is a monocyclic ring of 6 atoms, said ring having one hetero atom which is N, and optionally 1, 2 or 3 additional N atoms; said substituents are selected from the group consisting of (1) hydrogen, (2) halo, including fluoro, chloro, bromo and iodo, (3) C.sub.1-6 alkyl, (4) C.sub.1-6 alkoxy, (5) C.sub.1-6 alkylthio, (6) CN, (7) CF.sub.3, (8) N.sub.3, (9) --C(R.sup.5)(R.sup.6)--OH, (10) --C(R.sup.5)(R.sup.6)--O--C.sub.1-4 alkyl; R.sup.5 and R.sup.6 are each independently selected from the group consisting of (a) hydrogen, (b) C.sub.1-6 alkyl, or R.sup.5 and R.sup.6 together with the carbon to which they are attached form a monocyclic saturated carbon ring of 3, 4, 5, 6 or 7 atoms. 2. A compound according to claim 1 wherein R.sup.1 is selected from the group consisting of (a) S(O).sub.2 CH.sub.3, (b) S(O).sub.2 NH.sub.2, (c) S(O).sub.2 NHC(O)CF.sub.3, (d) S(O)NHCH.sub.3, (e) S(O)NHNH.sub.2, and (f) S(O)NHNHC(O)CF.sub.3 ; R.sup.2 is selected from the group consisting of (a) C.sub.1-4 alkyl, (b) C.sub.3, C.sub.4, C.sub.5, C.sub.6, and C.sub.7, cycloalkyl, (c) mono- or di-substituted phenyl wherein the substituent is selected from the group consisting of (1) hydrogen, (2) fluoro, chloro, and bromo, (3) C.sub.1-4 alkoxy, (4) C.sub.1-4 alkylthio, (5) CN, (6) CF.sub.3, (7) C.sub.1-4 alkyl, (8) N.sub.3, (9) --CO.sub.2 H, (10) --CO.sub.2 --C.sub.1-3 alkyl, (11) --C(R.sup.5)(R.sup.6)--OH, and (12) --C(R.sup.5)(R.sup.6)--O--C.sub.1-3 alkyl. 3. A compound according to claim 2 wherein R.sup.2 is selected from the group consisting of (a) cyclohexyl, and (b) mono- or di-substituted phenyl, and wherein the substitutents are selected from the group consisting of (1) hydrogen, (2) halo, (3) C.sub.1-4 alkoxy, (4) C.sub.1-4 alkylthio, (5) CN, (6) CF.sub.3, (7) C.sub.1-4 alkyl, (8) N.sub.3, and (9) --C(R.sup.5)(R.sup.6)--OH; R.sup.5 and R.sup.6, are each independently selected from the group consisting of (a) hydrogen, (b) methyl or ethyl, or R.sup.5 and R.sup.6 together with the carbon to which they are attached form a saturated carbon ring of 4, 5 or 6 atoms. 4. A compound according to claim 3 wherein R.sup.1 is selected from the group consisting of (a) S(O).sub.2 CH.sub.3, (b) S(O).sub.2 NH.sub.2, (c) S(O)NHCH.sub.3, and (d) S(O)NHNH.sub.2 ; R.sup.2 is selected from the group consisting of mono or di-substituted phenyl wherein the substitutents are selected from the group consisting of (1) hydrogen, (2) halo, selected from the group consisting of fluoro, chloro and bromo, (3) C.sub.1-3 alkoxy, (4) C.sub.1-3 alkylthio, (5) CN, and (6) C.sub.1-3 alkyl. 5. A compound according to claim 4 wherein R.sup.1 is selected from the group consisting of (a) S(O).sub.2 CH.sub.3, (b) S(O).sub.2 NH.sub.2, (c) S(O)NHCH.sub.3, and (d) S(O)NHNH.sub.2 ; R.sup.2 is mono or di-substituted phenyl wherein the substitutents are selected from the group consisting of (1) hydrogen, (2) halo, selected from the group consisting of fluoro, chloro and bromo, (3) methoxy, and (4) methyl. 6. A compound according to claim 5 wherein R.sup.1 is selected from the group consisting of (a) S(O).sub.2 CH.sub.3, and (b) S(O).sub.2 NH.sub.2, R.sup.2 is mono or di-substituted phenyl wherein the substitutents are selected from the group consisting of (1) hydrogen, (2) halo, selected from the group consisting of fluoro, chloro and bromo. 7. A compound according to claim 2 wherein R.sup.2 is a mono- or di-substituted heteroaryl wherein heteroaryl is selected from the group consisting of (1) furanyl, (2) diazinyl, triazinyl, tetrazinyl, (3) imidazolyl, (4) isooxazolyl, (5) isothiazolyl, (6) oxadiazolyl, (7) oxazolyl, (8) pyrazolyl, (9) pyrrolyl, (10) thiadiazolyl, (11) thiazolyl, (12) thienyl, (13) triazolyl, and (14) tetrazolyl, wherein the substitutents are selected from the group consisting of (a) hydrogen, (b) fluoro or chloro, (c) C.sub.1-3 alkoxy, (d) C.sub.1-6 alkylthio, (e) CN, (5) CF.sub.3, (6) C.sub.1-3 alkyl, (7) --C(R.sup.5)(R.sup.6)--OH; (8) --C(R.sup.5)(R.sup.6)--O--C.sub.1-4 alkyl. 8. A compound according to claim 7 wherein R.sup.2 is a mono- or di-substituted heteroaryl wherein heteroaryl is selected from the group consisting of (1) 2-furanyl, (2) 3-furanyl, (3) 2-thienyl, (4) 3-thienyl, (5) 3-isoxazolyl, (6) 4-isoxazolyl, (7) 5-isoxazolyl, (8) 3-isothiazolyl, (9) 4-isothiazolyl, (10) 5-isothiazolyl, (11) 2-oxazolyl, (12) 4-oxazolyl, (13) 5-oxazolyl, (14) 2-thiazolyl, (15) 4-thiazolyl, (16) 5-thiazolyl, (17) 1,2,3-thiadiazol-4-yl, (18) 1,2,3-thiadiazol-5-yl, (19) 1,2,4-thiadiazol-3-yl, (20) 1,2,4-thiadiazol-5-yl, (21) 1,3,4-thiadiazol-2-yl, (22) 1,2,5-thiadiazol-3-yl, (23) 1,2,3-oxadiazol-4-yl, (24) 1,2,3-oxadiazol-5-yl, (25) 1,2,4-oxadiazol-3-yl, (26) 1,2,4-oxadiazol-5-yl, (27) 1,3,4-oxadiazol-2-yl, (28) 1,2,5-oxadiazol-3-yl, (29) pyrazol-4-yl, (30) pyrazol-5-yl, (31) 1,2,3-triazol-4-yl, (32) 1,2,3-triazol-5-yl, (33) 1,2,4-triazol-3-yl, (34) 1,2,4-triazol-5-yl, (35) 1,2-diazinyl, (36) 1,3-diazinyl, (37) 1,4-diazinyl, (38) 1,2,3,4-tetrazin-5-yl, (39) 1,2,4,5-tetrazin-4-yl, (40) 1,3,4,5-tetrazin-2-yl,and (41) 1,2,3,5-tetrazin-4-yl. 9. A compound according to claim 8 wherein the heteroaryl is selected from the group consisting of (1) 3-isoxazolyl, (2) 4-isoxazolyl, (3) 5-isoxazolyl, (4) 3-isothiazolyl, (5) 4-isothiazolyl, (6) 5-isothiazolyl, (7) 2-oxazolyl, (8) 4-oxazolyl, (9) 5-oxazolyl, (10) 2-thiazolyl, (11) 4-thiazolyl, (12) 5-thiazolyl, (13) 1,2,3-thiadiazol-4-yl, (14) 1,2,3-thiadiazol-5-yl, (15) 1,2,4-thiadiazol-3-yl, (16) 1,2,4-thiadiazol-5-yl, (17) 1,3,4-thiadiazol-2-yl, (18) 1,2,5-thiadiazol-3-yl, (19) 1,2,3-oxadiazol-4-yl, (20) 1,2,3-oxadiazol-5-yl, (21) 1,2,4-oxadiazol-3-yl, (22) 1,2,4-oxadiazol-5-yl, (23) 1,3,4-oxadiazol-2-yl, (24) 1,2,5-oxadiazol-3-yl, (25) 1,2-diazinyl, (26) 1,3-diazinyl, and (27) 1,4-diazinyl. 10. A compound according to claim 9 wherein the heteroaryl is selected from the group consisting of (1) 3-isothiazolyl, (2) 4-isothiazolyl, (3) 5-isothiazolyl, (4) 2-oxazolyl, (5) 4-oxazolyl, (6) 5-oxazolyl, (7) 2-thiazolyl, (8) 4-thiazolyl, (9) 5-thiazolyl, (10) 1,2-diazinyl, (11) 1,3-diazinyl, and (12) 1,4-diazinyl, and wherein the substitutents are selected from the group consisting of (1) hydrogen, (2) fluoro or chloro, (3) C.sub.1-3 alkoxy, (4) C.sub.1-3 alkylthio, (5) CN, (6) C.sub.1-3 alkyl, and (7) --C(R.sup.5)(R.sup.6)--OH, wherein R.sup.5 and R.sup.6 are each independently hydrogen, methyl or ethyl. 11. A compound according to claim 10 wherein R.sup.1 is selected from the group consisting of (a) S(O).sub.2 CH.sub.3, (b) S(O).sub.2 NH.sub.2, (c) S(O)NHCH.sub.3, and (d) S(O)NHNH.sub.2. 12. A compound according to claim 11 wherein the hetereooaryl is selected from the group consisting of (1) 3-isothiazolyl, (2) 4-isothiazolyl, (3) 5-isothiazolyl, (4) 2-oxazolyl, (5) 4-oxazolyl, (6) 5-oxazolyl, (7) 2-thiazolyl, (8) 4-thiazolyl, (9) 5-thiazolyl, (10) 1,2-diazinyl, (11) 1,3-diazinyl, and (12) 1,4-diazinyl, and wherein the substitutents are selected from the group consisting of (1) hydrogen, (2) fluoro or chloro, (3) methoxy, (4) methylthio, (5) CF.sub.3, (6) methyl. 13. A compound according to claim 1 selected from (1) 3-(3-Fluorophenyl)-4-(4-(methylsulfonyl)phenyl)-2-(5H)-furanone, (2) 3-(3,4-Difluorophenyl)-4-(4-(methylsulfonyl)phenyl)-2(5H)-furanone, (3) 3-(3,4-trichlorophenyl)-4-(4-(methylsulfonyl)phenyl)-2-(5H)-furanone, (4) 3-phenyl-4-(4-(methylsulfonyl)phenyl)-2-(5H)-furanone. 14. A compound which is 3-(3,4-Difluorophenyl)-4-(4-(methylsulfonyl)phenyl)-2(5H)-furanone, (b) 3-phenyl-4-(4-(methylsulfonyl)phenyl)-2-(5H)-furanone, or a pharmaceutically acceptable salt thereof. 15. A compound according to claim 1 selected from (1) 3-(4-Fluorophenyl)-4-(4-(methylsulfonyl)phenyl)-2-(5H)-furanone, (2) 3-(4-Fluorophenyl)-4-(4-(aminosulfonyl)phenyl)-2-(5H)-furanone, (3) 3-(2,4-Difluorophenyl)-4-(4-(methylsulfonyl)phenyl)-2-(5H)-furanone, (4) 3-(3,4-Difluorophenyl)-4-(4-(methylsulfonyl)phenyl)-2-(5H)-furanone, (5) 3-(2,6-Difluorophenyl)-4-(4-(methylsulfonyl)phenyl)-2-(5H)-furanone, (6) 3-(2,5-Difluorophenyl)-4-(4-(methylsulfonyl)phenyl)-2-(5H)-furanone, (7) 3-(3,5-Difluorophenyl)-4-(4-(methylsulfonyl)phenyl)-2-(5H)-furanone, (8) 3-(4-Bromophenyl)-4-(4-(methylsulfonyl)phenyl)-2-(5H)-furanone, (9) 3-(4-Chlorophenyl)-4-(4-(methylsulfonyl)phenyl)-2-(5H)-furanone, (10) 3-(4-Methoxyphenyl)-4-(4-(methylsulfonyl)phenyl)-2-(5H)-furanone, (11) 3-(Phenyl)-4-(4-(methylsulfonyl)phenyl)-2-(5H)-furanone, (12) 3-(2-Chlorophenyl)-4-(4-(methylsulfonyl)phenyl)-2-(5H)-furanone, (13) 3-(2-Bromo-4-fluorophenyl)-4-(4-(methylsulfonyl)phenyl)2-(5H)-furanone, (14) 3-(2-Bromo-4-Chlorophenyl)-4-(4-(methylsulfonyl)phenyl)2-(5H)-furanone, (15) 3-(4-Chloro-2-fluorophenyl)-4-(4-(methylsulfonyl)phenyl)2-(5H)-furanone, (16) 3-(3-Bromo-4-fluorophenyl)-4-(4-(methylsulfonyl)phenyl)2-(5H)-furanone, (17) 3-(3-Chlorophenyl)-4-(4-(methylsulfonyl)phenyl)-2-(5H)-furanone, (18) 3-(2-Chloro-4-fluorophenyl)-4-(4-(methylsulfonyl)phenyl)2-(5H)-furanone, (19) 3-(2,4-Dichlorophenyl)-4-(4-(methylsulfonyl)phenyl)-2(5H)-furanone, (20) 3-(3,4-Dichlorophenyl)-4-(4-(methylsulfonyl)phenyl)-2(5H)-furanone, (21) 3-(2,6-Dichlorophenyl)-4-(4-(methylsulfonyl)phenyl)-2-(5H)-furanone, (22) 3-(3-Chloro-4-fluorophenyl)-4-(4-(methylsulfonyl)phenyl)2-(5H)-furanone, (23) 3-(4-Trifluoromethylphenyl)-4-(4-(methylsulfonyl)phenyl)2-(5H)-furanone, (24) 3-(3-Fluoro-4-methoxyphenyl)-4-(4-(methylsulfonyl)phenyl)-2-(5H)-furanone, (25) 3-(3-Chloro-4-methoxyphenyl)-4-(4-(methylsulfonyl)phenyl)-2-(5H)-furanone, (26) 3-(3-Fluoro-4-methoxyphenyl)-4-(4-(methylsulfonyl)phenyl)-2-(5H)-furanone, (27) 3-(2-Fluorophenyl)-4-(4-(methylsulfonyl)phenyl)-2-(5H)-furanone, (28) 3-(4-Methylthiophenyl)-4-(4-(methylsulfonyl)phenyl)-2(5H)-furanone, (29) 3-(3-Fluorophenyl)-4-(4-(methylsulfonyl)phenyl)-2-(5H)-furanone, (30) 3-(2-Chloro-6-fluorophenyl)-4-(4-(methylsulfonyl)phenyl)-2-(5H)-furanone, (31) 3-(3-Bromo-4-methylphenyl)-4-(4-(methylsulfonyl)phenyl)2-(5H)-furanone, (32) 3-(4-Bromo-2-fluorophenyl)-4-(4-(methylsulfonyl)phenyl)2-(5H)-furanone, (33) 3-(3,4-Dibromophenyl)-4-(4-(methylsulfonyl)phenyl)-2(5H)-furanone, (34) 3-(4-Chloro-3-fluorophenyl)-4-(4-(methylsulfonyl)phenyl)2-(5H)-furanone, (35) 3-(4-Bromo-3-fluorophenyl)-4-(4-(methylsulfonyl)phenyl)2-(5H)-furanone, an (36) 3-(4-Bromo-2-chlorophenyl)-4-(4-(methylsulfonyl)phenyl)2-(5H)-furanone. 16. A compound according to claim 1 selected from (1) 3-(3,4-Dichlorophenyl)-4-(4-(aminosulfonyl)phenyl)-2-(5H)-furanone, (2) 3-(3,4-Difluorophenyl)-4-(4-(aminosulfonyl)phenyl)-2-(5H)-furanone, (3) 3-(3-Chloro-4-methoxyphenyl)-4-(4-(aminosulfonyl)phenyl)2-(5H)-furanone, a nd (4) 3-(3-Bromo-4-methoxyphenyl)-4-(4-(aminosulfonyl)phenyl)2-(5H)-furanone. 17. A compound which is 3-phenyl-4-(4-(methylsulfonyl)phenyl)-2-(5H)-furanone, or a pharmaceutically acceptable salt thereof. 18. A pharmaceutical composition for treating an inflammatory disease susceptable to treatment with an non-steroidal anti-inflammatory agent comprising: a non-toxic therapeutically effective amount of a compound according to claim 1 and a pharmaceutically acceptable carrier. 19. A pharmaceutical composition for treating cyclooxygenase mediated diseases advantageously treated by an active agent that selectively inhibits COX-2 in preference to COX-1 comprising: a non-toxic therapeutically effective amount of a compound according to claim 1 and a pharmaceutically acceptable carrier. 20. A pharmaceutical composition for treating an inflammatory disease susceptable to treatment with an non-steroidal a-ntiinflammatory agent comprising: a non-toxic therapeutically effective amount of a compound according to claim 17 and a pharmaceutically acceptable carrier. 21. A pharmaceutical composition for treating cyclooxygenase mediated diseases advantageously treated by an active agent that selectively inhibits COX-2 in preference to COX-1 comprising: a non-toxic therapeutically effective amount of a compound according to claim 17 and a pharmaceutically acceptable carrier. 22. A method of treating an inflammatory disease susceptable to treatment with an non-steroidal anti-inflammatory agent comprising: administration to a patient in need of such treatment of a non-toxic therapeutically effective amount of a compound according to claim 1 and a pharmaceutically acceptable carder. 23. A method of treating cyclooxygenase mediated diseases advantageously treated by an active agent that selectively inhibits COX-2 in preference to COX-1 comprising: administration to a patient in need of such treatment of a non-toxic therapeutically effective amount of a compound according to claim 1. 24. A method of treating an inflammatory disease susceptable to treatment with an non-steroidal anti-inflammatory agent comprising: administration to a patient in need of such treatment of a non-toxic therapeutically effective amount of a compound according to claim 17 and a pharmaceutically acceptable carrier. 25. A method of treating cyclooxygenase mediated diseases advantageously treated by an active agent that selectively inhibits COX-2 in preference to COX-1 comprising: administration to a patient in need of such treatment of a non-toxic therapeutically effective amount of a compound according to claim 17.