Cc1ccc(S(=O)(=O)N2[C@H](c3ccc(Cl)cc3)CC=C(C(=O)O)[C@@H]2c2ccc(C(C)(C)C)cc2)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?