Cc1ccc(C(=O)OC[C@H]2CC[C@@H](n3cc(N(C)C4CCCCC4)c(=O)[nH]c3=O)O2)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?