CC(C)(O)C#Cc1cccc(-c2nc(C(=O)NCCCN3CCOCC3)cc3c2[C@H](CCO)N([S+]([O-])C(C)(C)C)C3)c1
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?