Using c1ccc2c(c1)NCCN2C1CC1, O=C(O)c1cccnc1Oc1cc(Cl)ccc1Cl to produce O=C(c1cccnc1Oc1cc(Cl)ccc1Cl)N1CCN(C2CC2)c2ccccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.