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