Using COc1ccc2nccc(CCC3CCN(C(=O)c4ccccc4)CC3)c2c1, O=C(O)c1ccccc1C(=O)OO to produce COc1ccc2c(c1)c(CCC1CCN(C(=O)c3ccccc3)CC1)cc[n+]2[O-], please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.