Using CC(=N)NC(=O)c1cn2c(n1)-c1ccc(Br)cc1OCC2, CC(C)NN to produce Cc1nc(-c2cn3c(n2)-c2ccc(Br)cc2OCC3)n(C(C)C)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.