CC(C)N1CN([C@@H](C(=O)N[C@@H]2C(=O)N3C2SC(C)(C)C3C(=O)O)c2ccc(O)cc2)CSC1=S
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?