Therefore, there is a need remaining to provide {HEAD ~ a method} of demethylating 14 OH substituted alkaloid derivatives, and {TAIL ~ in particular, oxycodone} and oxymorphone without the need of protecting/deprotecting the 14 OH group 
Therefore , there is a need remaining to provide { HEAD ~ a method } of demethylating 14 OH substituted alkaloid derivatives , and { TAIL ~ in particular , oxycodone } and oxymorphone without the need of protecting / deprotecting the 14 OH group
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH