You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule [(3R)-3-(4-ethyl-1,3-thiazol-2-yl)piperidin-1-yl]-(2-methyl-1H-imidazol-5-yl)methanone ?
user
C15H20N4OS
assistant