The present invention relates to: a compound selected from the group consisting of a tricyclic compound having the structure of formula I, a pharmaceutically acceptable salt, an isomer, a solvate and a precursor thereof; and a use thereof. The compound effectively controls GPR40, and thus, can be effectively used for the prophylaxis or treatment of diseases associated with GPR40, for example, diabetes and many other diseases.

The present invention relates to: a compound selected from the group consisting of a tricyclic compound having the structure of formula I, a pharmaceutically acceptable salt, an isomer, a solvate and a precursor thereof; and a use thereof. The compound effectively controls GPR40, and thus, can be effectively used for the prophylaxis or treatment of diseases associated with GPR40, for example, diabetes and many other diseases.

A photoresist composition comprising a resin having an acid-labile group; a salt represented by the formula (I); and a salt represented by the formula (B1). ##STR00001##

A photoresist composition comprising a resin having an acid-labile group; a salt represented by the formula (I); and a salt represented by the formula (B1). ##STR00001##

Disclosed are compounds, compositions, and methods useful for treating neuronal and mitochondrial diseases.

Disclosed are compounds, compositions, and methods useful for treating neuronal and mitochondrial diseases.