The present invention provides compounds of formula (I) and pharmaceutically acceptable salts thereof, wherein R.sup.1 and R.sup.2 are as defined in the specification, processes for their preparation, pharmaceutical compositions containing them and their use in therapy. ##STR00001##

The present invention provides compounds of formula (I) and pharmaceutically acceptable salts thereof, wherein R.sup.1 and R.sup.2 are as defined in the specification, processes for their preparation, pharmaceutical compositions containing them and their use in therapy. ##STR00001##

The present invention generally relates to methods and system for the synthesis of imaging agents, and precursors thereof. The methods may exhibit improved yields and may allow for the large-scale synthesis of imaging agents, including imaging agents comprising a radioisotope (e.g., .sup.18F). Various embodiments of the invention may be useful as sensors, diagnostic tools, and the like. In some cases, methods for evaluating perfusion, including myocardial perfusion, are provided. Synthetic methods of the invention have also been incorporated into an automated synthesis unit to prepare and purify imaging agents that comprise a radioisotope. In some embodiments, the present invention provides a novel methods and systems comprising imaging agent 1, including methods of imaging in a subject comprising administering a composition comprising imaging agent 1 to a subject by injection, infusion, or any other known method, and imaging the area of the subject wherein the event of interest is located.

The present invention generally relates to methods and system for the synthesis of imaging agents, and precursors thereof. The methods may exhibit improved yields and may allow for the large-scale synthesis of imaging agents, including imaging agents comprising a radioisotope (e.g., .sup.18F). Various embodiments of the invention may be useful as sensors, diagnostic tools, and the like. In some cases, methods for evaluating perfusion, including myocardial perfusion, are provided. Synthetic methods of the invention have also been incorporated into an automated synthesis unit to prepare and purify imaging agents that comprise a radioisotope. In some embodiments, the present invention provides a novel methods and systems comprising imaging agent 1, including methods of imaging in a subject comprising administering a composition comprising imaging agent 1 to a subject by injection, infusion, or any other known method, and imaging the area of the subject wherein the event of interest is located.

Provided herein are dUTPase inhibitors, compositions comprising such compounds and methods of using such compounds and compositions.

Provided herein are dUTPase inhibitors, compositions comprising such compounds and methods of using such compounds and compositions.

Described are negative allosteric modulators of metabotropic glutamate receptor 3 (mGlu3), pharmaceutical compositions including the compounds, and methods of using the compounds and compositions for treating depression, cognitive disorders, schizophrenia, Alzheimer's disease, or cancer in a subject.

Described are negative allosteric modulators of metabotropic glutamate receptor 3 (mGlu3), pharmaceutical compositions including the compounds, and methods of using the compounds and compositions for treating depression, cognitive disorders, schizophrenia, Alzheimer's disease, or cancer in a subject.

Pyridazine compounds for inhibiting NaV1.8 and methods for treating a condition, disease, or disorder associated with an increased NaV1.8 activity or expression are disclosed.

Pyridazine compounds for inhibiting NaV1.8 and methods for treating a condition, disease, or disorder associated with an increased NaV1.8 activity or expression are disclosed.