C[C@H]([C@@H](N)C(=O)N[C@@H](C(=O)O)[C@@H]1O[C@H](n2ccc(=O)[nH]c2=O)[C@@H](O)[C@H]1O)[C@@H](O)c1ccc(O)cn1
Drug-like molecules usually have no more than 5 Hydrogen bond donor. How many hydrogen bond donor does the molecule have?