You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3-[3-[(5R)-3-(4-methylphenyl)-6-oxo-4,5-dihydro-1H-pyridazin-5-yl]indol-1-yl]propanenitrile is the IUPAC name of a molecule. Please give its SMILES representation.
user
CC1=CC=C(C2=NNC(=O)C(C3=CN(CCC#N)C4=CC=CC=C34)C2)C=C1
assistant