Using CCOC(=O)C(N(Cc1ccccc1)Cc1ccccc1)C1(O)CCCCC1 to produce O=C(O)C(N(Cc1ccccc1)Cc1ccccc1)C1(O)CCCCC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.