You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule (2S,3S)-N-(6-methoxypyridin-3-yl)-N,1-dimethyl-2-(1-methylimidazol-2-yl)-6-oxopiperidine-3-carboxamide .
user
C18H23N5O3
assistant