Using O=S1(=O)N(c2ccccc2F)Cc2ccccc2N1CCCBr, CN to produce CNCCCN1c2ccccc2CN(c2ccccc2F)S1(=O)=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.