Cc1ccc(S(=O)(=O)N2CCC(C(=O)N[C@H](C(=O)NC3CCS(=O)(=O)C3)C(C)C)CC2)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?