Using COC(=O)C1(COc2cc3nccc(Oc4ccc5[nH]c(C)cc5c4F)c3cc2OC)CC1 to produce COc1cc2c(Oc3ccc4[nH]c(C)cc4c3F)ccnc2cc1OCC1(C(=O)O)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.