Cc1c(NC(=O)c2ccc(C(C)(C)C)cc2)cccc1-c1cc(Nc2ccc(C(=O)N3CCOCC3)cn2)c(=O)n(C)c1
Hydrogen bond acceptor is the chemical compound which contains the lone electron pairs that participate in the hydrogen bond formation. How many hydrogen bond acceptors does the molecule contain?