COc1ccc(OC)c(NS(=O)(=O)c2ccc3nc(C)n(NS(=O)(=O)c4cc(OC)ccc4OC)c(=O)c3c2)c1
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?