Using O=C1Nc2cccc(CCN3C(=O)c4ccccc4C3=O)c2C1Cl to produce O=C1Cc2c(CCN3C(=O)c4ccccc4C3=O)cccc2N1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.