Using Brc1ccc2c(c1)C(c1ccccc1)=NCc1nncn1-2, O=C1CCC(=O)N1I to produce Brc1ccc2c(c1)C(c1ccccc1)=NCc1nnc(I)n1-2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.