Using COC(=O)CCCC(=O)Nc1c(C(=O)Nc2ccc(Cl)cn2)oc2ccccc12 to produce O=C(O)CCCC(=O)Nc1c(C(=O)Nc2ccc(Cl)cn2)oc2ccccc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.