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