You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance 3-(3-methoxy-1,2-oxazol-5-yl)-1-[2-(2-methoxyphenyl)piperazin-1-yl]propan-1-one .
user
C18H23N3O4
assistant