Approach to 3-(Cyclo)alkylpiperidines through ‘sp3–sp3 via sp2–sp3’ Coupling
摘要:
The idea of introducing (cyclo)alkyl substituents at the C-3 atom of the piperidine ring, that is, formal sp(3)-sp(3) retrosynthetic disconnection, is implemented through a two-step reaction sequence including directed ortho metalation of a pyridine derivative and the subsequent quenching with a carbonyl compound, followed by catalytic hydrogenation. This robust but very efficient method allows for multigram preparation of sp(3)-rich 3-(cyclo)alkylpiperidines, which are valuable building blocks for medicinal chemistry and other areas.
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] SPIRO-OXAZOLONES<br/>[FR] SPIRO-OXAZOLONES
申请人:HOFFMANN LA ROCHE
公开号:WO2015091411A1
公开(公告)日:2015-06-25
The present invention provides spiro-oxazolones, which act as V1a receptor modulators, and in particular as V1a receptor antagonists, their manufacture, pharmaceutical compositions containing them and their use as medicaments. The present compounds are useful as therapeutics acting peripherally and centrally in the conditions of inappropriate secretion of vasopressin, anxiety, depressive disorders, obsessive compulsive disorder, autistic spectrum disorders, schizophrenia, aggressive behavior and phase shift sleep disorders, in particular jetlag.
Scalable and Straightforward Synthesis of All Isomeric (Cyclo)alkylpiperidines
作者:Andrii I. Subota、Anton O. Lutsenko、Bohdan V. Vashchenko、Dmitriy M. Volochnyuk、Vitalina Levchenko、Yurii V. Dmytriv、Eduard B. Rusanov、Alina O. Gorlova、Sergey V. Ryabukhin、Oleksandr O. Grygorenko
DOI:10.1002/ejoc.201900450
日期:2019.6.16
C‐3, or C‐4 positions of the piperidine ring based on the formal sp3–sp3 retrosynthetic disconnection is described. Catalytic hydrogenation of these adducts could be performed selectively for the synthesis of (cyclo)alkylpiperidines or the corresponding saturated amino alcohols on up to a 0.5 kg scale.
[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:WO2011060035A1
公开(公告)日:2011-05-19
As ORL-1 receptor antagonist of the formula I, 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 migraine.