COc1ccc(NC(=O)CN2C(=O)NC3(CC(C)CC(C)(C)C3)C2=O)cc1S(=O)(=O)N1CCCCC1
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?