Using COc1ccc2cc(C(C)CN3CCNCC3)ccc2c1, O=C(Cl)c1ccccc1 to produce COc1ccc2cc(C(C)CN3CCN(C(=O)c4ccccc4)CC3)ccc2c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.