Using COc1cc(N2CCNCC2)c2ncccc2c1, O=C1CCN(c2cccc3cccnc23)CC1 to produce COc1cc(N2CCN(C3CCN(c4cccc5cccnc45)CC3)CC2)c2ncccc2c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.