Compositions and methods for treating macular degeneration and other forms of retinal disease whose etiology involves the accumulation of A2E and/or lipofuscin, and, more specifically, for preventing the formation and/or accumulation of A2E are disclosed.

Compositions and methods for treating macular degeneration and other forms of retinal disease whose etiology involves the accumulation of A2E and/or lipofuscin, and, more specifically, for preventing the formation and/or accumulation of A2E are disclosed.

Disclosed are novel compounds of Formula I that are cGAS antagonists, methods of preparation of the compounds, pharmaceutical compositions comprising the compounds, and their use in medical therapy.

Disclosed are novel compounds of Formula I that are cGAS antagonists, methods of preparation of the compounds, pharmaceutical compositions comprising the compounds, and their use in medical therapy.

The present disclosure is directed to chemical compounds and to the use of such compounds in the treatment of diseases associated with an adrenergic receptor. An advantage of the compounds provided herein is that a broad range of pharmacological activities is possible, consistent with modulation of beta-adrenergic receptors. In addition, the disclosure provides methods of using the compounds described herein for the treatment of diseases associated with an adrenergic receptor, including but not limited to neurodegenerative diseases and disorders.

The present disclosure is directed to chemical compounds and to the use of such compounds in the treatment of diseases associated with an adrenergic receptor. An advantage of the compounds provided herein is that a broad range of pharmacological activities is possible, consistent with modulation of beta-adrenergic receptors. In addition, the disclosure provides methods of using the compounds described herein for the treatment of diseases associated with an adrenergic receptor, including but not limited to neurodegenerative diseases and disorders.

Provided herein are novel compounds that inhibit ribonucleotide reductase (RR) by binding to RRM2 and interfering with the activity of the RRM1/RRM2 holoenzyme, as well as methods of synthesizing these novel compounds. The compounds may be used to inhibit RR activity and to treat various conditions associated with RRM2 expression, such as for example certain cancer types, mitochondrial diseases, or degenerative diseases.

Provided herein are novel compounds that inhibit ribonucleotide reductase (RR) by binding to RRM2 and interfering with the activity of the RRM1/RRM2 holoenzyme, as well as methods of synthesizing these novel compounds. The compounds may be used to inhibit RR activity and to treat various conditions associated with RRM2 expression, such as for example certain cancer types, mitochondrial diseases, or degenerative diseases.

Compounds of the formula II:

##STR00001## wherein R.sup.1 and R.sup.2 are independently H, F or CH.sub.3; or R.sup.1 forms an ethynyl bond and R.sup.2 is H or C.sub.3-C.sub.6 cycloalkyl which is optionally substituted with one or two substituents independently selected from methyl, CF.sub.3, OMe or halo; R.sup.3 is C.sub.1-C.sub.3 alkyl or C.sub.3-C.sub.6 cycloalkyl, either of which is optionally substituted with one or two methyl and/or a fluoro, trifluoromethyl or methoxy, when R.sup.3 is C.sub.3-C.sub.6 cycloalkyl it may alternatively be gem substituted with fluoro; R.sup.4 is methyl or fluoro; m is 0, 1 or 2; E is a bond, or thiazolyl, optionally substituted with methyl or fluoro; A.sub.1 is CH or N, A.sub.2 is CR.sup.6R7 or NR.sup.6, provided at least one of A.sub.1 and A.sub.2 comprises N; R.sup.6 is H, C.sub.1-C.sub.4 alkyl, C.sub.1-C.sub.4 haloalkyl, C.sub.1-C.sub.3 alkyl-OC.sub.1-C.sub.3 alkyl, or when A.sub.2 is C, R.sup.6 can also be C.sub.1-C.sub.4 alkoxy or F; R.sup.7 is H, C.sub.1-C.sub.4 alkyl or F or a pharmaceutically acceptable salt, N-oxide or hydrate thereof, have utility in the treatment of disorders characterized by inappropriate expression or activation of cathepsin K, such as osteoporosis, osteoarthritis, rheumatoid arthritis or bone metastases.

Compounds of the formula II:

##STR00001## wherein R.sup.1 and R.sup.2 are independently H, F or CH.sub.3; or R.sup.1 forms an ethynyl bond and R.sup.2 is H or C.sub.3-C.sub.6 cycloalkyl which is optionally substituted with one or two substituents independently selected from methyl, CF.sub.3, OMe or halo; R.sup.3 is C.sub.1-C.sub.3 alkyl or C.sub.3-C.sub.6 cycloalkyl, either of which is optionally substituted with one or two methyl and/or a fluoro, trifluoromethyl or methoxy, when R.sup.3 is C.sub.3-C.sub.6 cycloalkyl it may alternatively be gem substituted with fluoro; R.sup.4 is methyl or fluoro; m is 0, 1 or 2; E is a bond, or thiazolyl, optionally substituted with methyl or fluoro; A.sub.1 is CH or N, A.sub.2 is CR.sup.6R7 or NR.sup.6, provided at least one of A.sub.1 and A.sub.2 comprises N; R.sup.6 is H, C.sub.1-C.sub.4 alkyl, C.sub.1-C.sub.4 haloalkyl, C.sub.1-C.sub.3 alkyl-OC.sub.1-C.sub.3 alkyl, or when A.sub.2 is C, R.sup.6 can also be C.sub.1-C.sub.4 alkoxy or F; R.sup.7 is H, C.sub.1-C.sub.4 alkyl or F or a pharmaceutically acceptable salt, N-oxide or hydrate thereof, have utility in the treatment of disorders characterized by inappropriate expression or activation of cathepsin K, such as osteoporosis, osteoarthritis, rheumatoid arthritis or bone metastases.