Cc1ccc(C(=O)N/C(=C\c2cn(S(=O)(=O)N(C)C)c3ccccc23)C(=O)NCCN2CCOCC2)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?