NCCCC[C@@H]1NC(=O)c2cc([N+](=O)[O-])cc(F)c2NCCCC[C@@H](C(N)=O)NC(=O)[C@H](CCC(N)=O)NC1=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?