Using O=C(c1ccccc1)N1CCN2C[C@@H](c3ccccc3)c3ccccc3[C@@H]2C1 to produce c1ccc(CN2CCN3C[C@@H](c4ccccc4)c4ccccc4[C@@H]3C2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.