Using O=C(O)C(=NO)c1ccco1, CC(C)(C)OC(=O)C(C)(C)Br to produce CC(C)(C)OC(=O)C(C)(C)ON=C(C(=O)O)c1ccco1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.