Using CCOC(=O)/C=C/c1cnc(-c2ccc(C(CC3CCOCC3)c3ccc(S(=O)(=O)C4CC4)cc3)[nH]2)s1 to produce CCOC(=O)CCc1cnc(-c2ccc(C(CC3CCOCC3)c3ccc(S(=O)(=O)C4CC4)cc3)[nH]2)s1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.