N#C/C(=C/c1cn(-c2ccccc2)nc1-c1cccc(S(=O)(=O)N2CCCC2)c1)C(=O)NCc1ccco1
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?