Using COC(CCCNc1nc(NCCCC(OC)OC)nc(NCCCC(OC)OC)n1)OC to produce OC1CCCN1c1nc(N2CCCC2O)nc(N2CCCC2O)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.