Using CCCc1nn(Cc2ccc(OCc3nc(-c4ccccc4)oc3C)cc2)cc1CCC(=O)OCC to produce CCCc1nn(Cc2ccc(OCc3nc(-c4ccccc4)oc3C)cc2)cc1CCC(=O)O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.