Using O=C([O-])[O-], Cn1cc(-c2cnc3ccc(Cc4nnc5ccc(Cl)nn45)cc3c2)cn1 to produce COc1ccc2nnc(Cc3ccc4ncc(-c5cnn(C)c5)cc4c3)n2n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.