COc1cc(C2C(C(=O)Nc3cc(F)c(F)cc3F)=C(C)NC(C)=C2C(=O)Nc2cc(F)c(F)cc2F)ccc1O
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?