Using CC(C)OP(=O)(CP(=O)(OC(C)C)OC(C)C)OC(C)C, CC(C)=CCC/C(C)=C/CC/C(C)=C/CBr to produce CC(C)=CCC/C(C)=C/CC/C(C)=C/CC(P(=O)(OC(C)C)OC(C)C)P(=O)(OC(C)C)OC(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.