Processes for the production of (+)- "NAL" morphinan compounds
申请人:Wang Peter X.
公开号:US20090156820A1
公开(公告)日:2009-06-18
The invention generally provides processes and intermediate compounds useful for the production of (+) nal morphinan compounds. In particular, the process encompasses synthetic routes for the production of (+) nal morphinan compounds or derivatives of (+) nal morphinan compounds from (+)-morphinan substrates such as (+)-hydrocodone, (+)-norhydrocodone or derivatives of either compound.
The invention provides processes for the preparation of morphinans having a tertiary amine. In particular, the present invention provides processes for the formation of tertiary amine alkaloids by direct N-alkylation of secondary amine alkaloids, the processes co-mediated by an alkylating agent and a protic solvent or a mixture of a protic solvent and an aprotic solvent.
Preparation of 6-Alpha-Amino N-Substituted Morphinans by Catalytic Hydrogen Transfer
申请人:Grote Christopher W.
公开号:US20100317683A1
公开(公告)日:2010-12-16
The present invention provides processes for the stereoselective synthesis of 6-alpha-amino N-substituted morphinans. In particular, the invention provides processes for the reductive amination of 6-keto N-substituted morphinans by catalytic hydrogen transfer.
Process for the Preparation of 6-Beta Hydroxy Morphinan Compounds
申请人:Bao Jian
公开号:US20090312552A1
公开(公告)日:2009-12-17
The invention provides processes for the conversion of a 6-keto morphinan to a 6-hydroxy morphinan. In particular, the invention provides a stereoselective process for the conversion of a 6-keto morphinan to a 6-beta-hydroxy morphinan.
Processes for the selective amination of ketomorphinans
申请人:Hudson Edumnd C.
公开号:US20100081817A1
公开(公告)日:2010-04-01
The present invention is generally directed to a process for the preparation of a ketomorphinan comprising maintaining a ketone group as unprotected and performing reductive amination using a hydrogen source and a catalyst.