Using COc1c(OCCCN2CCOCC2)ccc2c1N=C(N)N1CCN=C21, Nc1ncc(C(=O)O)s1 to produce COc1c(OCCCN2CCOCC2)ccc2c1N=C(NC(=O)c1cnc(N)s1)N1CCN=C21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.