Using C=C(C)C(=O)O, CCCCCC1CCC(C2CCC(C(=O)OCCCBr)CC2)CC1 to produce C=C(C)C(=O)OCCCOC(=O)C1CCC(C2CCC(CCCCC)CC2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.