Using ClCc1ccccc1, Cn1c(O)nc2cc(Cn3ccnc3)ccc21 to produce Cn1c(=O)n(Cc2ccccc2)c2cc(Cn3ccnc3)ccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.