Using COC1=CC(OC)=NN(Cl)N1, O=C(O)c1c(O)cccc1Cl to produce COC1=CC(OC)=NN(Oc2cccc(Cl)c2C(=O)O)N1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.