Using O=C1CCc2cc3c(cc2C1)OCO3, c1cnc(N2CCNCC2)nc1 to produce C1=C(N2CCN(c3ncccn3)CC2)CCc2cc3c(cc21)OCO3, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.