Using O=S1(=O)CCN2C=CC=C(c3ccc(Oc4ccc5c(c4)OCC5)cc3)C2=N1 to produce O=S1(=O)CCN2CCCC(c3ccc(Oc4ccc5c(c4)OCC5)cc3)C2=N1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.