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Xanthine phosphodiesterase V inhibitors

InactiveUS20020169174A1Good metabolic stabilityEffective treatmentBiocideSenses disorderPhosphodiesterase V InhibitorsXanthine
A xanthine phosphodiesterase V inhibitor having the formula (I), with the variables defined herein, which is especially useful for treating male (erectile) and female sexual dysfunction and other physiological disorders: For example, a representative compound of the invention is:
Owner:MERCK SHARP & DOHME CORP

C6-aryl and heteroaryl substituted pyrido[2,3-D] pyrimidin-7-ones

The present invention provides substituted 2-aminopyridines of formula I, wherein R1, A1, W, X, and Y are as defined in the specification, useful in treating cell proliferative disorders. The novel compounds of the present invention are potent inhibitors of cyclin-dependent kinases 4 (Cdk4).
Owner:PFIZER INC

Selective inhibition of aggrecanase in osteoarthritis treatment

This invention relates to a method of treatment for osteoarthritis involving inhibitors of aggrecanase that demonstrate IC50s of less than 20 nM and demonstrate differential potency against matrix metalloproteinases (MMPs) and a disintegrin and metalloproteinases (ADAMs or reprolysins). This invention also relates to compounds, methods of treatment and composition of Formula I: or a therapeutically acceptable salt thereof, whereinX is carbon or nitrogen;R1 and R2 are independently selected from the group consisting of hydrogen, hydroxy, and methyl, wherein at least one of R1 and R2 is methyl;R3 and R4 are independently selected from the group consisting of hydrogen, hydroxy, and methyl, or R3 and R4 may be taken together to form a carbonyl group; andR5 and R6 are independent substituents in the ortho, meta, or para positions and are independently selected from the group consisting of hydrogen, halogen, cyano, methyl, and ethyl;with the provisos:when X is carbon, then R7 and R8 are both hydrogen and at least one of R1, R2, R3, and R4 is hydroxy;when X is carbon and R5 is para-halo, then at least one of R6, R3, and R4 is not hydrogen;when X is nitrogen, then R8 is not present and R7 is hydrogen or a group of the formula: wherein, Y is —CH2—NH2 or —NH—CH3; andwhen X is nitrogen and R7 is H, then R3 and R4 are taken together to form a carbonyl group.
Owner:PFIZER INC +1

Selective inhibition of aggrecanase in osteoarthritis treatment

InactiveUS20050227997A1Ease of preparation and delectabilityGood metabolic stabilityAntibacterial agentsSenses disorderProteoglycanaseDisintegrin
This invention relates to a method of treatment for osteoarthritis involving inhibitors of aggrecanase that demonstrate IC50s of less than 20 nM and demonstrate differential potency against matrix metalloproteinases (MMPs) and a disintegrin and metalloproteinases (ADAMs or reprolysins). This invention also relates to compounds, methods of treatment and composition of Formula I: or a therapeutically acceptable salt thereof, wherein X is carbon or nitrogen; R1 and R2 are independently selected from the group consisting of hydrogen, hydroxy, and methyl, wherein at least one of R1 and R2 is methyl; R3 and R4 are independently selected from the group consisting of hydrogen, hydroxy, and methyl, or R3 and R4 may be taken together to form a carbonyl group; and R5 and R6 are independent substituents in the ortho, meta, or para positions and are independently selected from the group consisting of hydrogen, halogen, cyano, methyl, and ethyl; with the provisos: when X is carbon, then R7 and R8 are both hydrogen and at least one of R1, R2, R3, and R4 is hydroxy; when X is carbon and R5 is para-halo, then at least one of R6, R3, and R4 is not hydrogen; when X is nitrogen, then R8 is not present and R7 is hydrogen or a group of the formula: wherein, Y is —CH2—NH2 or —NH—CH3; and when X is nitrogen and R7 is H, then R3 and R4 are taken together to form a carbonyl group.
Owner:PFIZER INC +1

Treatment of autoimmune disorders

The present invention relates to the use of a compound of formula I wherein R2 is R-NH wherein R is a branched or unbranched alkyl radical, a piperidinyl group or pyrrolidinyl group, each of which may be optionally substituted by one or more -OH, halogen, amino or hydroxyalkyl groups; R6 is phenylamino, benzylamino or pyridyl-methylamino, indan-5-amino, where in each case the aryl group may be unsubstituted or substituted by one or more -OR'', halogen, NO2, amino or COOR' groups, wherein R' and R'' are each independently H or a branched or unbranched alkyl group; and R9 is a branched or unbranched alkyl group or a cycloalkyl group; in the treatment of an autoimmune disorder. The invention further relates to a method of treating an autoimmune disorder comprising administering to a subject in need thereof a therapeutically effective amount of a compound of formula I.
Owner:CYCLACEL

Pyrrolopyrimidine derivatives

The invention relates to compounds of the formula 1 or a pharmaceutically acceptable salt, prodrug or hydrates thereof, wherein Q, A, L, R1, R2 and R3 are as defined herein. The invention also relates to pharmaceutical compositions containing the compounds of formula 1 and to methods of treating hyperproliferative disorders in a mammal by administering the compounds of formula 1.
Owner:PFIZER INC
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