Using CCOC(=O)CCc1cn(Cc2ccc(O)cc2)nc1O, ClCc1cccnc1 to produce CCOC(=O)CCc1cn(Cc2ccc(OCc3cccnc3)cc2)nc1OCc1cccnc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.