C[C@@H](C(=O)Nc1ccc2ccccc2c1)[C@H]1C[C@]1(C)[C@H](NS(=O)(=O)c1ccc(-c2ccccc2)cc1)c1ccccc1
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?