Using Brc1cccnc1, CCOC(=O)N1CCc2cc(I)c3c(c2CC1)C(=O)CC3 to produce CCOC(=O)N1CCc2cc(I)c3c(c2CC1)C(O)(c1cccnc1)CC3, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.