Cc1sc(NC(=O)C2C3CCC(C3)C2C(=O)O)c(C(N)=O)c1-c1ccc(C(C)(C)C)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?