A compound of Formula (I), or a pharmaceutically acceptable salt thereof, is described, where the substituents are as defined herein. Pharmaceutical compositions including the same and method of using the same are also described.

##STR00001##

A JAK kinase inhibitor pharmaceutical composition, containing (3aR,5s,6aS)-N-(3-methoxy-1,2,4-thiadiazol-5-yl)-5-(methyl(7H-pyrrolo[2,3-d]pyrimidin-4-yl)amino)hexahydrocyclopenta[c]pyrrole-2(1H)-carboxamide or a pharmaceutically acceptable salt thereof and a co-processed excipient, such as cellulose-lactose. The present invention has good stability, dissolution and bioavailability, and the preparation process thereof is simple and convenient.

This disclosure describes the use of a phosphodiesterase-5 (PDE5) inhibitor to reduce an individual's desire to smoke and/or frequency of smoking. In some embodiments, the PDE5 inhibitor is sildenafil (e.g., Viagra).

The present disclosure provides pyrimidine dione compounds, and pharmaceutical compositions thereof, for treating cancer, including solid tumors. The compounds can be used alone or in combination with other anti-cancer agents.

The present disclosure provides pyrimidine dione compounds, and pharmaceutical compositions thereof, for treating cancer, including solid tumors. The compounds can be used alone or in combination with other anti-cancer agents.

The disclosure describes selective and potent CDK 4/6 inhibitors that show advantageous inhibition of cancer growth, even at low concentrations. A class of the CDK 4/6 inhibitors relates to substituted pyridopyrimidines compounds having a fatty acid moiety, and are namely derivatives of Palbociclib of general formula [2A], wherein R.sup.1 is hydrogen, aryl, alkyl, alkoxy, cycloalkyl, or heterocyclyl; R.sup.2 is hydrogen, halogen, alkyl, acyl, cycloalkyl, alkoxy, alkoxy alkyl, haloalkyl, hydroxy alkyl, alkenyl, alkynyl, nitrile, or nitro; R.sup.3 is hydrogen, halogen, alkyl, haloalkyl, hydroxy alkyl, or cycloalkyl; and n is an integer from 9 to 20. These compounds may be used as pharmaceutical compounds for anti-cancer therapies, and are useful for the treatment, prevention and/or amelioration of cancer.

##STR00001##

The disclosure describes selective and potent CDK 4/6 inhibitors that show advantageous inhibition of cancer growth, even at low concentrations. A class of the CDK 4/6 inhibitors relates to substituted pyridopyrimidines compounds having a fatty acid moiety, and are namely derivatives of Palbociclib of general formula [2A], wherein R.sup.1 is hydrogen, aryl, alkyl, alkoxy, cycloalkyl, or heterocyclyl; R.sup.2 is hydrogen, halogen, alkyl, acyl, cycloalkyl, alkoxy, alkoxy alkyl, haloalkyl, hydroxy alkyl, alkenyl, alkynyl, nitrile, or nitro; R.sup.3 is hydrogen, halogen, alkyl, haloalkyl, hydroxy alkyl, or cycloalkyl; and n is an integer from 9 to 20. These compounds may be used as pharmaceutical compounds for anti-cancer therapies, and are useful for the treatment, prevention and/or amelioration of cancer.

##STR00001##

This disclosure describes selective and potent CDK 4/6 inhibitors that show advantageous inhibition of cancer growth, even at low concentrations. This class of anti-cancer CDK 4/6 inhibitors are substituted pyrrolopyrimidine compounds of formula IA, having a fatty acid moiety. These compounds may be used as pharmaceutical compounds for anti-cancer therapies, and are useful for the treatment, prevention and/or amelioration of cancer.

##STR00001##

This disclosure describes selective and potent CDK 4/6 inhibitors that show advantageous inhibition of cancer growth, even at low concentrations. This class of anti-cancer CDK 4/6 inhibitors are substituted pyrrolopyrimidine compounds of formula IA, having a fatty acid moiety. These compounds may be used as pharmaceutical compounds for anti-cancer therapies, and are useful for the treatment, prevention and/or amelioration of cancer.

##STR00001##

Compounds and methods of using said compounds, singly or in combination with additional agents, and pharmaceutical compositions of said compounds for the treatment of viral infections are disclosed.