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 1-[4-[3-(dimethylamino)-1H-1,2,4-triazol-5-yl]piperidin-1-yl]-2-methyl-4-phenoxybutan-1-one .
user
C20H29N5O2
assistant