Using CCOP(OCC)OCC, ClCc1cn(C(c2ccccc2)(c2ccccc2)c2ccccc2)cn1 to produce CCOP(=O)(Cc1cn(C(c2ccccc2)(c2ccccc2)c2ccccc2)cn1)OCC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.