Zirconium-hydride-catalyzed site-selective hydroboration of amides for the synthesis of amines: Mechanism, scope, and application
作者:Bo Han、Jiong Zhang、Haijun Jiao、Lipeng Wu
DOI:10.1016/s1872-2067(21)63853-6
日期:2021.11
diverse amines. Various readily reducible functional groups, such as esters, alkynes, and alkenes, were well tolerated. Furthermore, the methodology was extended to the synthesis of bio- and drug-derived amines. Detailed mechanistic studies revealed a reaction pathway entailing aldehyde and amido complex formation via an unusual C–N bond cleavage-reformation process, followed by C–O bondcleavage.
A novel class of compounds, which act to antagonize the action of the glucagon hormone on the glucagon receptor. Owing to their antagonizing effect of the glucagon receptor the compounds may be suitable for the treatment and/or prevention of any diseases and disorders, wherein a glucagon antagonistic action is beneficial, such as hyperglycemia, Type 1 diabetes, Type 2 diabetes, disorders of the lipid metabolism and obesity.
The present invention provides compounds of formula (I) and pharmaceutically acceptable salts thereof,
wherein R
1
, X, m, R
2
, Y, R
3
, Z, n, R
4
, A and B are as defined in the specification, processes for their preparation, pharmaceutical compositions containing them and their use in therapy.
[EN] AMIDE DERIVATIVES AS LYSOPHOSPHATIDIC ACID RECEPTOR ANTAGONISTS<br/>[FR] DÉRIVÉS AMIDES UTILISÉS EN TANT QU'ANTAGONISTES DES RÉCEPTEURS DE L'ACIDE LYSOPHOSPHATIDIQUE
申请人:TAKEDA PHARMACEUTICAL
公开号:WO2015025164A1
公开(公告)日:2015-02-26
The present invention provides compounds of formula (I) and pharmaceutically acceptable salts thereof, formula (I) wherein R1. X, m. R2, Y, R3, Z, n, R4. A and B are as defined in the specification, processes for their preparation, pharmaceutical compositions containing them and their use in therapy.