Using C[S+](C)(C)=O, COc1ccc(Cn2c(=O)ccc3c(Br)cccc32)cc1 to produce COc1ccc(CN2C(=O)C3CC3c3c(Br)cccc32)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.