CC(=O)c1cccc(N(C(=O)Cn2nnc3ccccc32)C(C(=O)NCc2ccccc2)c2ccc(F)cc2)c1
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?