CC(C)CN(CC(C)C)S(=O)(=O)c1ccc(C(=O)Nc2sc3c(c2C(N)=O)CC(C)(C)NC3(C)C)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?