Using CCOP(=O)(COCCCBr)OCC, COCCOc1nc(N)nc2nc[nH]c12 to produce CCOP(=O)(COCCCn1cnc2c(OCCOC)nc(N)nc21)OCC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.