Using COc1ccc2c(OCCn3nc(-c4ccc(C(=O)NCCN)c(Cl)c4)ccc3=O)ccnc2c1 to produce COc1ccc2c(OCCn3nc(-c4ccc(C5=NCCN5)c(Cl)c4)ccc3=O)ccnc2c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.