摘要:
The present invention is directed to processes for the synthesis of morphinans. In particular, a process for coupling a carboxylic acid compound with an amine compound to form an amide product that can then be isolated or the crude amide product can be cyclized to form a 3,4-dihydroisoquinoline. In one embodiment, the carboxylic acid contains a phenol moiety protected with a labile protecting group. The protected phenol reduces reaction times, simplifies work-up of the product, and reduces the amount of cyclizing agent, POCl3 that is necessary to form the 3,4-dihydroisoquinoline.
摘要:
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.
摘要:
The invention generally provides processes and intermediate compounds useful for the production of sinomenine derivatives. In particular, the process may encompass synthetic routes for the production of (+)-sinomenine derivatives and their intermediates.
摘要:
The invention generally provides processes for the production of buprenophine and derivatives of buprenorphine. In particular, the process may encompass synthetic routes for the production of buprenorphine or derivatives of buprenorphine from norhydromorphone or derivatives of norhydromorphone.
摘要:
The present invention provides sustained-release opiate compositions. In particular, the present invention provides sustained-release opiate compositions that include an opiate attached to a blood albumin binder. The present invention also relates to methods of administering an opiate with a sustained release pharmacokinetic profile.
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 (+)-morphinanium compounds comprising substituted 6-hydroxy or 6-amine groups. The invention also provides methods for inhibiting microglial activation by administering the compounds of the invention.
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 processes for the synthesis of morphinans. In particular, a process for coupling a carboxylic acid compound with an amine compound to form an amide product that can then be isolated or the crude amide product can be cyclized to form a 3,4-dihydroisoquinoline. In one embodiment, the carboxylic acid contains a phenol moiety protected with a labile protecting group. The protected phenol reduces reaction times, simplifies work-up of the product, and reduces the amount of cyclizing agent, POCl3 that is necessary to form the 3,4-dihydroisoquinoline.