COc1cc(NC(=O)C2CCN(S(=O)(=O)c3c(C)noc3/C=C/c3ccccc3F)CC2)cc(OC)c1OC
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?