COC(=O)[C@@]1(C#N)[C@@H]2C=CC(C(C)=O)=CN2[C@@H](C(N)=O)[C@@H]1c1ccc(F)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?