CCC(C)NC(=O)c1ccc(N2CC3CC(C2)c2cccc(=O)n2C3)c(NC(=O)c2ccc(Br)o2)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?