CC(C)(C)N1C(=O)[C@H]2CC[C@@H]3/C(=N\NC(=O)OCc4ccccc4)C[C@@H](O)[C@@H](O)[C@@H]3[C@@H]2C1=O
The electronegative atoms usually involved in hydrogen bonding are oxygen, nitrogen and fluorine. How many hydrogen bond acceptors does the molecule contain?