CO[C@H]1COC(=O)[C@H](C)NC(=O)C/C=C\[C@@H](C)[C@@H](NS(=O)(=O)c2ccc(C)cc2)COC(=O)C/C=C\[C@@H]1C
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?