Process and compounds for the production of (+)opiates
申请人:Wang Peter X.
公开号:US20090156818A1
公开(公告)日:2009-06-18
The invention generally provides processes and intermediate compounds useful for the production of (+)-opiates. Non-limiting examples of (+) opiates that may be derived from one or more compounds of the invention include (+)-noroxymorphone, (+)-naltrexone, (+)-naloxone, (+)-N-cyclopropylmethylnorhydrocodone, (+)-N-cycloproylmethylnorhydromorphone, (+)-N-allylnorhydrocodone, (+)-N-allylnorhydromorphone, (+)-noroxycodone, (+)-naltrexol, (+)-naloxol, and (+)-3-O-methyl-naltrexone.
Remove Amination of 6-Keto Normorphinans by Catalytic Hydrogen Transfer
申请人:Grote Christopher W.
公开号:US20100317861A1
公开(公告)日:2010-12-16
The present invention provides processes for the stereoselective synthesis of 6-alpha-amino morphinans. In particular, the invention provides processes for the reductive amination of 6-keto normorphinans by catalytic transfer hydrogenation.
Process for the Preparation of Hexahydroisoquinolines from 1,2,3,4-Tetrahydroisoquinolines
申请人:Cantrell Gary L.
公开号:US20090247756A1
公开(公告)日:2009-10-01
The present invention is directed to processes for the synthesis of morphinans. In particular, a process for the asymmetric reduction of an imine moiety in a 3,4-dihydroisoquinoline to produce a tetrahydroisoquinoline, followed by a Birch reduction to produce a hexahydroisoquinoline. In various embodiments, the 3,4-dihydroisoquinoline contains a phenol moiety protected with a labile protecting group. In other embodiments, the imine reduction reaction mixture contains silver tetrafluoroborate.
Preparation of Hexahydroisoquinolines from Dihydroisoquinolines
申请人:Cantrell Gary L.
公开号:US20100022776A1
公开(公告)日:2010-01-28
The present invention is directed to processes for the synthesis of morphinans. In particular, a process for the asymmetric reduction of an imine moiety in a 3,4-dihydroisoquinoline to produce a tetrahydroisoquinoline, followed by a Birch reduction to produce a hexahydroisoquinoline. In various embodiments, the 3,4-dihydroisoquinoline contains a phenol moiety protected with a labile protecting group. In other embodiments, the imine reduction reaction mixture contains silver tetrafluoroborate.