You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-chloro-4-(3-chloropyridin-2-yl)sulfanylphthalazine The above is the IUPAC name of a molecule. Write its SMILES notation.
user
ClC1=CC=CN=C1SC1=NN=C(Cl)C2=CC=CC=C12
assistant