Using CCOc1c(Br)cc(Br)cc1C=O, N=C(NN)NN to produce CCOc1c(Br)cc(Br)cc1C=NNC(=N)NN=Cc1cc(Br)cc(Br)c1OCC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.