C[C@H]1CN([C@@H](C)CO)C(=O)Cc2cc(NS(=O)(=O)c3ccc(Cl)cc3)ccc2O[C@@H]1CN(C)C(=O)Nc1cccc2ccccc12
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?