Using CCOP(=O)(Cc1ccc(Cn2c(=O)[nH]c3c(N)nc(OCCOC)cc32)cc1)OCC to produce COCCOc1cc2c([nH]c(=O)n2Cc2ccc(CP(=O)(O)O)cc2)c(N)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.