{HEAD ~ The present invention} is directed to a method for demethylating {TAIL ~ 14 hydroxy substituted alkaloid derivatives}, in particular of 14 hydroxy 17 methyl 4,5 epoxymorphinane 6 on derivatives 
{ HEAD ~ The present invention } is directed to a method for demethylating { TAIL ~ 14 hydroxy substituted alkaloid derivatives } , in particular of 14 hydroxy 17 methyl 4,5 epoxymorphinane 6 on derivatives
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH