Using CCNCC, CCCCCCOP(=O)(CP(=O)(OCCCCCC)OCCCCCC)OCCCCCC to produce C=C(P(=O)(OCCCCCC)OCCCCCC)P(=O)(OCCCCCC)OCCCCCC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.