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 4-N-benzyl-6-(4-phenylpiperazin-1-yl)-4-N-pyridin-2-ylpyrimidine-4,5-diamine using the IUPAC nomenclature.
user
C26H27N7
assistant