Using O=Cc1ccccc1Cl, CSc1nccc(-c2c(I)c(=O)n3n2CCC3)n1 to produce CSc1nccc(-c2c(C(O)c3ccccc3Cl)c(=O)n3n2CCC3)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.