Using COC(=O)c1cnc(-c2ccc(O)cn2)s1, O=C1NCC[C@@H]1O to produce COC(=O)c1cnc(-c2ccc(O[C@@H]3CCNC3=O)cn2)s1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.