Cc1ccc(-n2c(=O)c3ccc(C(=O)NCc4ccco4)cc3n(CC(=O)Nc3ccc(C)c(F)c3)c2=O)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?