Using C[O-], Cn1nc(Cl)c2c(ncn2Cc2ccc(C(=O)c3ccc(Cl)cc3)cc2)c1=O to produce COc1nn(C)c(=O)c2ncn(Cc3ccc(C(=O)c4ccc(Cl)cc4)cc3)c12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.