Patent number: 6683107
Abstract: This invention provides compounds of Formula I having the structure
wherein
R1 and R2 are each, independently, hydrogen, alkyl of 1-6 carbon atoms, halogen, perfluoroalkyl of 1-6 carbon atoms, cycloalkyl of 3-8 carbon atoms, thienyl, furyl, phenyl or phenyl substituted with trifluoromethyl, chloro, methoxy, or trifluoromethoxy;
R3 and R4 are each, independently, hydrogen, carboxyl, hydroxyl, hydoxyalkyl of 1-6 carbon atoms, alkoxy of 1-6 carbon atoms, perfluoroalkoxy of 1-6 carbon atoms, alkanoyloxy of 2-7 carbon atoms, perfluoroalkanoyloxy of 2-7 carbon atoms, arylalkoxy of 7-15 carbon atoms, aryloxy of 6-12 carbon atoms, aroyloxy of 6-12 carbon atoms, aryloxycarbonyl of 7-13 carbon atoms, alkoxycarbonyl of 2-7 carbon atoms, perfluoroalkoxycarbonyl of 2-7 carbon atoms, alkyl of 1-6 carbon atoms, perfluoroalkyl of 1-6 carbon atoms, alkylamino of 1-6 carbon atoms, dialkylamnino of 1-6 carbon atoms per alkyl group, tetrazolyl, mercapto, nitrile, nitro, amino, —NHSO2CF3, carbamoyl, carb
Type:
Grant
Filed:
August 8, 2002
Date of Patent:
January 27, 2004
Assignee:
Wyeth
Inventors:
Paul J. Dollings, Robert E. McDevitt, Folake O. Adebayo
Patent number: 6451845
Abstract: This invention provides compounds of Formula I having the structure
wherein
R1 and R2 are each, independently, hydrogen, alkyl of 1-6 carbon atoms, halogen, perfluoroalkyl of 1-6 carbon atoms, cycloalkyl of 3-8 carbon atoms, thienyl, furyl, phenyl or phenyl substituted with trifluoromethyl, chloro, methoxy, or trifluoromethoxy;
R3 and R4 are each, independently, hydrogen, carboxyl, hydroxyl, hydoxyalkyl of 1-6 carbon atoms, alkoxy of 1-6 carbon atoms, perfluoroalkoxy of 1-6 carbon atoms, alkanoyloxy of 2-7 carbon atoms, perfluoroalkanoyloxy of 2-7 carbon atoms, arylalkoxy of 7-15 carbon atoms, aryloxy of 6-12 carbon atoms, aroyloxy of 6-12 carbon atoms, aryloxycarbonyl of 7-13 carbon atoms, alkoxycarbonyl of 2-7 carbon atoms, perfluoroalkoxycarbonyl of 2-7 carbon atoms, alkyl of 1-6 carbon atoms, perfluoroalkyl of 1-6 carbon atoms, alkylamino of 1-6 carbon atoms, dialkylamino of 1-6 carbon atoms per alkyl group, tetrazolyl, mercapto, nitrile, nitro, amino, —NHSO2CF3, carbamoyl, carbo
Type:
Grant
Filed:
April 23, 2001
Date of Patent:
September 17, 2002
Assignee:
Wyeth
Inventors:
Paul J. Dollings, Robert E. McDevitt, Folake O. Adebayo