<unk>  is<unk> e which has been hydrogenated at the 6-position and consists of a mixture of 4,5α-Epoxy-17-methylmorphinan-3,6β,14-triol and 4,5α-Epoxy-17-methylmorphinan-3,6α,14-triol (hydromorphinol). . It is produced by the human body as an active metabolite of<unk> e and some bacteria as an intermediate in turning morphine into hydromorphone. It can also be manufactured and is the subject of patents by drug companies looking for new semi-synthetic analgesics and cough suppressants. A derivative of<unk> , 8-hydroxy-6-α-oxymorphol, was discovered in the first decade of this century and the subject of a patent application by Endo for an analgesic and antitussive.
Oxymorphol
Oxymorphone
Butorphanol
Hydromorphone
Levorphanol
Lepromin
Nalorphine
Noroxycodone