Using CCOC(=O)CCc1cn(Cc2ccc(OCc3nc(-c4ccccc4)oc3C)nc2)nc1OCC to produce CCOc1nn(Cc2ccc(OCc3nc(-c4ccccc4)oc3C)nc2)cc1CCC(=O)O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.