Using COc1cc(CC=O)c(Cl)cc1C#N, O=C1OCc2cc(CCN3CCNCC3)ccc21 to produce COc1cc(CCN2CCN(CCc3ccc4c(c3)COC4=O)CC2)c(Cl)cc1C#N, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.