Using C=CCBr, CCCCc1nc(-c2ccc(C(F)(F)F)cc2)sc1Cn1ccc2cc(O)cnc21 to produce C=CCOc1cnc2c(ccn2Cc2sc(-c3ccc(C(F)(F)F)cc3)nc2CCCC)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.