CC(=O)OCC(=O)[C@@]1(OC(C)=O)[C@H](C)C[C@H]2[C@@H]3C[C@H](F)C4=CC(=O)C=C[C@@]4(C)[C@]3(F)[C@H](O)C[C@@]21C
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?