COc1ccc(NC(=O)CCS(=O)(=O)c2nc(-c3ccc4c(c3)OCO4)cc(C(F)(F)F)n2)c(OC)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?