Using CCCCCCCCc1ccsc1Br, Cc1c(Br)sc2sc(Br)c(C)c12 to produce CCCCCCCCc1ccsc1-c1sc2sc(-c3sccc3CCCCCCCC)c(C)c2c1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.