You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule with 1-[4-[7-acetyl-4-(3-ethylmorpholin-4-yl)-6,8-dihydro-5H-pyrido[3,4-d]pyrimidin-2-yl]phenyl]-3-ethylurea as the IUPAC name, what is the corresponding SMILES representation?
user
CCNC(=O)NC1=CC=C(C2=NC3=C(CCN(C(C)=O)C3)C(N3CCOCC3CC)=N2)C=C1
assistant