Using CCOC(=O)CC(C=CCCCCc1ccc2c(n1)N(C(C)=O)CC2)c1cnc(C)nc1 to produce CCOC(=O)CC(CCCCCCc1ccc2c(n1)N(C(C)=O)CC2)c1cnc(C)nc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.