COc1ccc(C2=C(C)C(=O)N(Cc3ccc(C(=O)NCc4cccc(C)c4)cc3)S2(=O)=O)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?