CC(C)=CCC/C(C)=C/CO/N=C1/C[C@@H](O)[C@@H](O)[C@H]2[C@@H]1CC[C@@H]1C(=O)N(Cc3ccccc3)C(=O)[C@H]12
The electronegative atoms usually involved in hydrogen bonding are oxygen, nitrogen and fluorine. How many hydrogen bond acceptors does the molecule contain?