Using CC(=O)OC(c1cn2c(cnc3ccccc32)n1)C1(Br)C(=O)N2C(C(=O)OCc3ccc([N+](=O)[O-])cc3)=CS[C@@H]21 to produce O=Cc1cn2c(cnc3ccccc32)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.