Using COc1ccc2[nH]cc(C3CCN(CCCCc4c[nH]c5ccccc45)CC3)c2c1 to produce Oc1ccc2[nH]cc(C3CCN(CCCCc4c[nH]c5ccccc45)CC3)c2c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.