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 (5R)-N-[(1-methylpyrazol-4-yl)methyl]-2,3,4,5-tetrahydrobenzo[i][1]benzoxepin-5-amine using the IUPAC nomenclature.
user
C19H21N3O
assistant