Cc1ccc2nc(-c3ccc(NC(=O)CN4C(=O)NC(C)(c5ccc(OC(F)F)cc5)C4=O)cc3)sc2c1
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?