Using Cn1c(CCl)nc2ccccc21, CCOC(=O)CCc1cn(Cc2ccc(O)cc2)nc1OCC to produce CCOC(=O)CCc1cn(Cc2ccc(OCc3nc4ccccc4n3C)cc2)nc1OCC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.