CCOc1ccc(-c2nc(SC(C(C)=O)C(=O)N(C)C)c3c(=O)n(C)c(=O)n(C)c3n2)cc1
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?