Using CSc1nc(NC[C@H](C)O)c2c(-c3ccccc3Cl)n[nH]c2n1 to produce CSc1nc(N)c2c(-c3ccccc3Cl)n[nH]c2n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.