COc1cccc(-c2cc(C(F)(F)F)n3nc(C(=O)Nc4c(C)n(C)n(-c5ccccc5)c4=O)cc3n2)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?