Using O=C1NCC2CCC1N2, CC(C)n1ncnc1-c1cn2c(n1)-c1cnc(O)cc1OCC2 to produce CC(C)n1ncnc1-c1cn2c(n1)-c1cnc(N3C4CCC3C(=O)NC4)cc1OCC2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.