CN[C@H]1CC[C@]23C[C@]24CC[C@]2(C)[C@@H]([C@H](C)N(C)C)CC[C@@]2(C)[C@@H]4CC[C@H]3C1(C)C
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?