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 4-imidazol-1-yl-N-[[(3R)-8-methoxy-3,4-dihydro-2H-chromen-3-yl]methyl]benzamide .
user
C21H21N3O3
assistant