CCOC(=O)c1c(C)nc2sc(C(=O)Nc3ccc(C(C)=O)cc3)c(N)c2c1-c1ccc(OC)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?