CCC1(CC)C(=O)C2=C3C1[C@H](C(=O)OC)C=C(C(=O)OC)C[C@H]3[C@H]1C(=O)NC(=O)[C@H]1[C@H]2C
Molecules possible for drug usually have no more than 5 Hydrogen bond acceptor. How many hydrogen bond acceptors does the molecule have?