Using COCc1cnc(N2CCC([C@H]3C[C@H]3CCOc3ccc(CC(=O)O)c(Cl)c3)CC2)nc1, CNC to produce COCc1cnc(N2CCC([C@H]3C[C@H]3CCOc3ccc(CC(=O)N(C)C)c(Cl)c3)CC2)nc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.