Using COCCOCOc1c(C/C=C(\C)CBr)c(OC)c(C)c2c1C(=O)OC2, CCOC(=O)CP(=O)(OC)OC to produce CCOC(=O)C(C/C(C)=C/Cc1c(OC)c(C)c2c(c1OCOCCOC)C(=O)OC2)P(=O)(OC)OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.