Using O=C1c2ccccc2C(=O)N1c1ncnc2c1ncn2O, CCOP(=O)(/C=C\CCO)OCC to produce CCOP(=O)(/C=C\CCOn1cnc2c(N3C(=O)c4ccccc4C3=O)ncnc21)OCC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.