Using C[O-], Clc1cccc(Cc2nc(Cl)c3c(n2)CCN(Cc2ccccc2)CC3)c1 to produce COc1nc(Cc2ccccc2)nc2c1CCN(Cc1ccccc1)CC2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.