Using CNO, ClCc1nnc2n1-c1ccc(Br)cc1C(c1ccccn1)=NC2 to produce CN(O)Cc1nnc2n1-c1ccc(Br)cc1C(c1ccccn1)=NC2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.