Using S=C=Nc1ccc(Cl)cc1Cl, COC(=O)c1ccc(Cl)c(N)c1NCCCO to produce COC(=O)c1ccc(Cl)c(NC(=S)Nc2ccc(Cl)cc2Cl)c1NCCCO, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.