Cc1ccc(S(=O)(=O)N2C[C@H]3n4c(=O)ccc(=O)n4C[C@H](OC(=O)Nc4cccs4)[C@@]3(O)C2)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?