Using NC(=O)c1ccc(OC2CCNCC2)cc1, O=CCCc1ccccc1 to produce NC(=O)c1ccc(OC2CCN(CCCc3ccccc3)CC2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.