Abstract: Disclosed are novel compounds of Chemical Formula 1, optical isomers of the compounds, and pharmaceutically acceptable salts of the compounds or the optical isomers. The compounds, isomers, and salts exhibit excellent activity as GLP-1 receptor agonists. In particular, they, as GLP-1 receptor agonists, exhibit excellent glucose tolerance, thus having a great potential to be used as therapeutic agents for metabolic diseases. Moreover, they exhibit excellent pharmacological safety for cardiovascular systems.

Abstract: Disclosed herein are a touch panel including: a transparent substrate; an interface layer formed on one surface of the transparent substrate; and a metal mesh type electrode pattern formed on the interface layer, and a method of manufacturing the same. In the case in which the interface layer is formed on the transparent substrate, a mirror surface property of the interface is decreased, thereby making it possible to provide a black oxidation property in which reflectivity of a bonded interface and a color feeling unique to a metal are decreased. Therefore, visibility of the electrode pattern is decreased to suppress a phenomenon that the electrode pattern is viewed by user's eyes, such that visibility of the touch panel is improved, thereby making it possible to improve quality of the touch panel.