Using O=C(O)c1ccc2c(n1)CCCC2NCCc1cc(F)ccc1O, CCO to produce CCOC(=O)c1ccc2c(n1)CCCC2NCCc1cc(F)ccc1O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.