Using O=C1c2ccccc2C(=O)N1CC1=c2ccccc2=Cc2ccccc2N1 to produce O=C1c2ccccc2C(=O)N1CC1Nc2ccccc2Cc2ccccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.