Using O=C(Nc1nccs1)C(CC1CCC2(C1)OCCCO2)c1ccc(Cl)c(Cl)c1 to produce O=C1CCC(CC(C(=O)Nc2nccs2)c2ccc(Cl)c(Cl)c2)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.