Using Cc1nc(-c2nc3c(s2)CCOc2cc(C4CNC4)ccc2-3)n(C(C)C)n1, C[C@H](O)C(=O)O to produce Cc1nc(-c2nc3c(s2)CCOc2cc(C4CN(C(=O)[C@H](C)O)C4)ccc2-3)n(C(C)C)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.