O=C1C(c2ccccc2)=C(c2ccccc2)[C@H](c2ccccc2)[C@]1(Cc1nnn(-c2ccc([N+](=O)[O-])cc2)c1N1CCOCC1)c1ccccc1
Drug-like molecules usually have no more than 5 Hydrogen bond donor. How many hydrogen bond donor does the molecule have?