Using O=C1c2ccccc2C(=O)c2c(O)ccc(O)c21, CCN(CC)CCN to produce CCN(CC)CCNc1ccc(NCCN(CC)CC)c2c1C(=O)c1ccccc1C2=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.