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 6,7-dimethoxy-2-N-(2-phenylethyl)-4-N-(1,3-thiazol-2-ylmethyl)quinazoline-2,4-diamine .
user
C22H23N5O2S
assistant