The present invention comprises novel aromatic molecules, which can be used in the treatment of pathological conditions, such as cancer, skin diseases, muscle disorders, and immune system-related disorders such as disorders of the haematopoietic system including the haematologic system in human and veterinary medicine.

An object of the present invention is to provide a DP receptor antagonist. A compound represented by general formula (I):

##STR00001## (wherein all symbols are as shown in the specification) and a pharmaceutically acceptable salt thereof have DP receptor antagonistic activity and are also highly safe, and thus are useful as active ingredients of pharmaceuticals for DP receptor-mediated diseases. In addition, the compound represented by the general formula (I) and the pharmaceutically acceptable salt thereof also have good transferability to the central nervous system, and thus are particularly useful as a preventive and/or therapeutic agent for diseases associated with DP receptors present in the central nervous system among DP receptor-mediated diseases, that is, sleep-wake disorders.

An object of the present invention is to provide a DP receptor antagonist. A compound represented by general formula (I):

##STR00001## (wherein all symbols are as shown in the specification) and a pharmaceutically acceptable salt thereof have DP receptor antagonistic activity and are also highly safe, and thus are useful as active ingredients of pharmaceuticals for DP receptor-mediated diseases. In addition, the compound represented by the general formula (I) and the pharmaceutically acceptable salt thereof also have good transferability to the central nervous system, and thus are particularly useful as a preventive and/or therapeutic agent for diseases associated with DP receptors present in the central nervous system among DP receptor-mediated diseases, that is, sleep-wake disorders.

The invention provides capsaicinoid prodrug compounds, pharmaceutical compositions, and their use in the treatment of medical conditions, such as pain, and in agonizing TRPV1 activity.

Disclosed are a dual modulator of mGluR5 and 5-HT2AR (5-HT2A receptor), and use thereof. More specifically, disclosed are a compound which acts as modulator of mGluR5 and an antagonist of 5-HT2AR at the same time, and use thereof as therapeutic agent for pain.

Disclosed are a dual modulator of mGluR5 and 5-HT2AR (5-HT2A receptor), and use thereof. More specifically, disclosed are a compound which acts as modulator of mGluR5 and an antagonist of 5-HT2AR at the same time, and use thereof as therapeutic agent for pain.

The present invention relates to compound (I) or a salt thereof which has a RORγt inhibitory action. In the formula (I), each symbol is as defined in the specification.

##STR00001##

The present invention relates to compound (I) or a salt thereof which has a RORγt inhibitory action. In the formula (I), each symbol is as defined in the specification.

##STR00001##

Provided herein are deuterated compounds and compositions useful in increasing PPARδ activity. The compounds have a formula ##STR00001##
where L.sup.5 comprises at least one deuterium. Exemplary species include ##STR00002##
The compounds and compositions provided herein are useful for the treatment of PPARδ related diseases (e.g., muscular diseases, vascular disease, demyelinating disease, and metabolic diseases).

Provided herein are deuterated compounds and compositions useful in increasing PPARδ activity. The compounds have a formula ##STR00001##
where L.sup.5 comprises at least one deuterium. Exemplary species include ##STR00002##
The compounds and compositions provided herein are useful for the treatment of PPARδ related diseases (e.g., muscular diseases, vascular disease, demyelinating disease, and metabolic diseases).