C#C[C@]1(O)CC[C@H]2[C@@H]3CCC4=C/C(=N/CCOC(=O)c5cccc6cc7ccccc7nc56)CC[C@@H]4[C@H]3CC[C@@]21C
Drug-like molecules usually have no more than 5 Hydrogen bond donor. How many hydrogen bond donor does the molecule have?