Using Nc1cccc(O)c1, COCC(=O)Nc1cn2nc(I)ccc2n1 to produce COCC(=O)Nc1cn2nc(Oc3cccc(N)c3)ccc2n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.