Using O=C(CN1CCN(C(c2ccccc2)c2ccccc2)CC1)c1ccc(O)cc1 to produce Oc1ccc(C(O)CN2CCN(C(c3ccccc3)c3ccccc3)CC2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.