Using OC1(c2ccccc2)CCN(CCc2c[nH]c3ccc(OCc4ccccc4)cc23)CC1 to produce Oc1ccc2[nH]cc(CCN3CCC(O)(c4ccccc4)CC3)c2c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.