Using [OH-], Cn1c(C=O)nc2c(N3CCOCC3)nc(-n3c(C4CC4)nc4ccccc43)nc21 to produce Cn1c(C(=O)O)nc2c(N3CCOCC3)nc(-n3c(C4CC4)nc4ccccc43)nc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.