You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Name the molecular formula for the molecule established as (3S,4S)-1-[(2-methoxypyrimidin-5-yl)methyl]-3-methyl-4-phenoxypiperidin-3-ol using the IUPAC nomenclature.
user
C18H23N3O3
assistant