Using CCOC(=O)c1csc(COc2ccc(I)cc2)n1, OB(O)c1ccc2c(c1)OCO2 to produce O=C(O)c1csc(COc2ccc(-c3ccc4c(c3)OCO4)cc2)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.