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-N-(1,3-benzodioxol-5-ylmethyl)-2-N-ethyl-6-methyl-2-N-phenylpyrimidine-2,4-diamine .
user
C21H22N4O2
assistant