Using COC(=O)C(O)C(c1ccc(OC)cc1)N1CCc2ccccc21 to produce COC(=O)C(O)C(c1ccc(OC)cc1)n1ccc2ccccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.