Synthesis of an ORL-1 Receptor Antagonist via a Radical Bromination and Deoxyfluorination to Afford a gem-Difluorospirocycle
摘要:
The development of a synthesis of an ORL-1 receptor antagonist is described. The key process improvements in the synthetic sequence include a multikilogram bromination process and the development of a convergent coupling strategy. The process improvements resulted in the production of The active pharmaceutical ingredient (API) on a multikilogram scale.
Synthesis of an ORL-1 Receptor Antagonist via a Radical Bromination and Deoxyfluorination to Afford a gem-Difluorospirocycle
摘要:
The development of a synthesis of an ORL-1 receptor antagonist is described. The key process improvements in the synthetic sequence include a multikilogram bromination process and the development of a convergent coupling strategy. The process improvements resulted in the production of The active pharmaceutical ingredient (API) on a multikilogram scale.
SPIROPIPERIDINE COMPOUNDS AS ORL-1 RECEPTOR ANTAGONISTS
申请人:BENITO COLLADO Ana Belen
公开号:US20110118251A1
公开(公告)日:2011-05-19
An ORL-1 receptor antagonist of the formula:
its uses, and methods for its preparation are described.
一个公式为ORL-1受体拮抗剂:
其用途和制备方法已被描述。
[EN] SPIROPIPERIDINE COMPOUNDS AS ORL-1 RECEPTOR ANTAGONISTS<br/>[FR] COMPOSÉS DE SPIROPIPÉRIDINE EN TANT QU'ANTAGONISTES DE RÉCEPTEUR ORL-1
申请人:LILLY CO ELI
公开号:WO2011060217A1
公开(公告)日:2011-05-19
An ORL-1 receptor antagonist of the formula: its uses, and methods for its preparation are described. ORL-1 antagonists are deemed to be useful in the treatment of depression and/or the treatment of overweight, obesity, and/or weight maintenance post treatment for overweight or obesity. Certain compounds have also demonstrated through animal models that the compounds of the present invention are useful for the treatment of migraines.
A Visible‐Light‐Mediated Radical Smiles Rearrangement and its Application to the Synthesis of a Difluoro‐Substituted Spirocyclic ORL‐1 Antagonist
作者:James J. Douglas、Haley Albright、Martin J. Sevrin、Kevin P. Cole、Corey R. J. Stephenson
DOI:10.1002/anie.201507369
日期:2015.12
systems, representing a new disconnection for the synthesis of this versatile moiety. When applied to the target compound, the photochemical step could be conducted on 15 g scale using industrially relevant [Ru(bpy)3Cl2] catalyst loadings of 0.01 mol %. This transformation is part of an overall five‐step route to the antagonist that compares favorably to the current synthetic sequence and demonstrates