Using CC1=C(CCCC(=O)O)C(=O)c2ccccc2C1=O, NCCN to produce CC1=C(CCCC(=O)NCCN)C(=O)c2ccccc2C1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.