Using O=C(NC1CCNCC1)C(O)(c1ccccc1)C1CCCC1, O=CC1CCCCCC1 to produce O=C(NC1CCN(CC2CCCCCC2)CC1)C(O)(c1ccccc1)C1CCCC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.