Preparation of Saturated Ketone Morphinan Compounds Having Low Metal Content
申请人:Jiang Tao
公开号:US20110269963A1
公开(公告)日:2011-11-03
The present invention provides processes for the preparation of saturated ketone morphinan compounds from a morphinan comprising an allyl alcohol ring moiety, wherein the final product has a low metal content. In particular, the invention provides processes that utilize isomerization reactions catalyzed by transition metal catalysts and the subsequent removal of the transition metal using metal scavengers.
Preparation of Saturated Ketone Morphinan Compounds by Catalytic Isomerization
申请人:Wang Peter X.
公开号:US20100261904A1
公开(公告)日:2010-10-14
The present invention provides processes for the preparation of saturated ketone morphinan compounds by catalytic isomerization. In particular, the invention provides processes for the conversion of a morphinan comprising an allyl alcohol ring moiety into a morphinan comprising a saturated ketone ring moiety by an isomerization reaction catalyzed by an allyl-transition metal catalyst.
Processes for the synthesis of opiates alkaloids with reduced impurity formation
申请人:Orr Brian
公开号:US20100081813A1
公开(公告)日:2010-04-01
The invention provides processes for the production of opiate alkaloids. In particular, the present invention provides processes for the formation of opiate alkaloids that minimizes the formation of impurities.
Processes for synthesis of opiate alkaloid derivatives
申请人:Mannino Anthony
公开号:US20100081816A1
公开(公告)日:2010-04-01
The present invention provides processes for the synthesis of opiate alkaloids. In particular, the opiate alkaloids produced by the process of the invention are typically intermediate compounds that may be utilized to produce a variety of biologically active alkaloids including buprenorphine and diprenorphine.