Cc1c2c(c(C)n1-c1ccccc1)C(=O)N(CCN1CCN(c3cccc(C(F)(F)F)c3)CC1)C2=O
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?