COc1cc(NS(=O)(=O)c2ccc(NC(=O)/C(=C/c3ccccc3Cl)NC(=O)c3ccccc3)cc2)nc(OC)n1
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?