Br.Cc1c(F)c(N)c2c(=O)cc(-c3ccc(NC(=O)C(N)CCCNC(=N)N)c(F)c3)oc2c1F
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?