摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
The present invention is directed to the conversion of a 6-keto morphinan to a 6-alpha-hydroxy morphinan in the presence of a ruthenium, rhodium, or iridium asymmetric catalyst and a hydrogen source.
摘要:
The present invention is directed to the preparation of 6-hydroxy morphinans having formula (II) or N-alkylated 6-hydroxy morphinans having formula (III).
摘要:
The present invention is directed to the preparation of 6-hydroxy morphinans having formula (II) or N-alkylated 6-hydroxy morphinans having formula (III).
摘要:
The present invention is directed to the conversion of a 6-keto morphinan to a 6-alpha-hydroxy morphinan in the presence of a ruthenium, rhodium, or iridium asymmetric catalyst and a hydrogen source.