COc1ccc(COC(=O)NN=C2CC(O)C(O)C3C2CCC2C(=O)N(c4ccc(F)cc4F)C(=O)C23)cc1
Hydrogen bond acceptor: The atom, ion, or molecule component of a hydrogen bond which does not supply the bridging (shared) hydrogen atom. How many hydrogen bond acceptors does the molecule have?