Using O=C1CCc2cc(-c3cc(C4CCCN(C(=O)OCc5ccccc5)C4)oc3-c3ccncc3)ccc21 to produce O=C1CCc2cc(-c3cc(C4CCCNC4)oc3-c3ccncc3)ccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.