CC(=O)O[C@H]1C[C@@H](OC(C)=O)[C@@](C)(O)[C@@H]2[C@@H](OC(C)=O)[C@@]3(O)[C@H](/C=C(/CO)[C@H]4O[C@H]4[C@@H](OC(C)=O)[C@@]12C)OC(=O)[C@@H]3C
Drug-like molecules usually have no more than 5 Hydrogen bond donor. How many hydrogen bond donor does the molecule have?