C[C@@H]1CN([C@H](C)CO)C(=O)c2cccc(NS(=O)(=O)c3cccs3)c2O[C@H]1CN(C)Cc1ccccc1
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?