COc1ccc(/C=C2\C[C@H]3[C@@H]4CCC5=C[C@@H](N6CCCC6)CC[C@]5(C)[C@H]4CC[C@]3(C)[C@H]2O)cc1
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?