The present invention concerns deuterated catecholamine derivatives as well as pharmaceuticals containing these compounds. In addition, the invention concerns the use of deuterated catecholamine derivatives as well as physiologically acceptable salts thereof, and also pharmaceutical compositions, which contain these compounds, also in combination with enzyme inhibitors, for the treatment of dopamine deficiency diseases or diseases which are based on disrupted tyrosine transport or disrupted tyrosine decarboxylase, as well as other disorders.

Disclosed herein are compounds, compositions, and methods for treating neurodegenerative diseases, such as Alzheimer's disease.

Disclosed herein are compounds, compositions, and methods for treating neurodegenerative diseases, such as Alzheimer's disease.

Provided are compounds that can inhibit pathogenic, bacterial metabolite production and conjugates of the same. Also provided are pharmaceutical compositions comprising the same and methods of using the same.

Therapeutic compositions comprising one or more agents that inhibit CXXC5-DVL interface, and methods of administering those therapeutic compositions to model, treat, reduce resistance to treatment, prevent, and diagnose a condition/disease associated with a metabolic disease or a related clinical condition thereof, are disclosed.

Therapeutic compositions comprising one or more agents that inhibit CXXC5-DVL interface, and methods of administering those therapeutic compositions to model, treat, reduce resistance to treatment, prevent, and diagnose a condition/disease associated with a metabolic disease or a related clinical condition thereof, are disclosed.

The present invention relates to co-crystals comprising levothyroxine and a dicarboxylic acid, preferably L-tartaric acid or oxalic acid, and processes for the preparation thereof. Furthermore, the invention relates to a pharmaceutical composition comprising a co-crystal of the present invention, preferably the co-crystal comprising levothyroxine and L-tartaric acid or oxalic acid, and at least one pharmaceutically acceptable excipient. The pharmaceutical composition of the present invention can be used as a medicament, in particular for the treatment of hypothyroidism.

The present invention relates to co-crystals comprising levothyroxine and a dicarboxylic acid, preferably L-tartaric acid or oxalic acid, and processes for the preparation thereof. Furthermore, the invention relates to a pharmaceutical composition comprising a co-crystal of the present invention, preferably the co-crystal comprising levothyroxine and L-tartaric acid or oxalic acid, and at least one pharmaceutically acceptable excipient. The pharmaceutical composition of the present invention can be used as a medicament, in particular for the treatment of hypothyroidism.

The present invention provides an improved process for preparation of the L-threo-(2S,3R)-3-(3 4-dihydroxyphenyl)serine (I) or a salt thereof, which is known as Droxidopa; comprising (a) recovery of the by-product compound (V) (as described herein) from the crude compound (I), and (b) recycling and re-use it for the preparation of droxidopa. Accordingly, the present invention relates to an improved economical process for the preparation of L-threo-(2S,3R)-3-(3.4-dihydroxyphenyl)serine (I) or its pharmaceutically acceptable salts; wherein the process relates to recovery and recycling of the by-product compound (V) and also to re-use it for the preparation of droxidopa.

The present invention provides an improved process for preparation of the L-threo-(2S,3R)-3-(3 4-dihydroxyphenyl)serine (I) or a salt thereof, which is known as Droxidopa; comprising (a) recovery of the by-product compound (V) (as described herein) from the crude compound (I), and (b) recycling and re-use it for the preparation of droxidopa. Accordingly, the present invention relates to an improved economical process for the preparation of L-threo-(2S,3R)-3-(3.4-dihydroxyphenyl)serine (I) or its pharmaceutically acceptable salts; wherein the process relates to recovery and recycling of the by-product compound (V) and also to re-use it for the preparation of droxidopa.