Using Cn1c2c(c(Cc3cccc(N)c3)c1-c1ccnc(N)n1)C(=O)N(C(=O)OC(C)(C)C)CC2 to produce Cn1c2c(c(Cc3cccc(N)c3)c1-c1ccnc(N)n1)C(=O)NCC2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.