Using CC(C)(C)OC(=O)OC(=O)OC(C)(C)C, CCOC(=O)c1cccc(Nc2ncc(Br)n3ncnc23)c1 to produce CCOC(=O)c1cccc(N(C(=O)OC(C)(C)C)c2ncc(Br)n3ncnc23)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.