COC(=O)CCN(C(=O)C1CCN(S(=O)(=O)c2c(C)noc2/C=C/c2ccccc2F)CC1)c1ccccc1
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?