Assembling of medium/long chain-based β-arylated unnatural amino acid derivatives via the Pd(II)-catalyzed sp3 β-C-H arylation and a short route for rolipram-type derivatives
paper, we report the assembling of libraries of β-arylated short/medium/long chain-based non-α-amino acid (aminoalkanoic acid) derivatives via the Pd(II)-catalyzed, bidentate directing group 8-aminoquinoline-aided sp3 β-C-H activation/arylation method. Short/medium chain-based unnatural amino acid derivatives containing an aryl group at the β-position are promising small molecules with therapeutic
SUBSTITUTED N-ARYLETHYL-2-ARYLQUINOLINE-4-CARBOXAMIDES AND USE THEREOF
申请人:Bayer Aktiengesellschaft
公开号:US20200031775A1
公开(公告)日:2020-01-30
The present application relates to novel substituted N-arylethyl-2-arylquinoline-4-carboxamide derivatives, to processes for preparation thereof, to the use thereof alone or in combinations for treatment and/or prevention of diseases, and to the use thereof for production of medicaments for treatment and/or prevention of diseases, especially for treatment and/or prevention of fibrotic and inflammatory disorders.
Divergent Synthesis of γ‐Amino Acid and γ‐Lactam Derivatives from<i>meso</i>‐Glutaric Anhydrides
作者:Simon N. Smith、Ryan Craig、Stephen J. Connon
DOI:10.1002/chem.202003280
日期:2020.10.21
The first divergent synthesis of both γ‐amino acid and γ‐lactam derivatives from meso‐glutaric anhydrides is described. The organocatalytic desymmetrisation with TMSN3 relies on controlled generation of a nucleophilic ammonium azide species mediated by a polystyrene‐bound base to promote efficient silylazidation. After Curtius rearrangement of the acyl azide intermediate to access the corresponding
Organic photocatalysis for the radical couplings of boronic acid derivatives in batch and flow
作者:Fabio Lima、Lars Grunenberg、Husaini B. A. Rahman、Ricardo Labes、Joerg Sedelmeier、Steven V. Ley
DOI:10.1039/c8cc02169d
日期:——
We report an acridium-based organic photocatalyst as an efficient replacement for iridium-based photocatalysts to oxidise boronic acid derivatives by a single electron process. Furthermore, we applied the developed catalytic system to the synthesis of four active pharmaceutical ingredients (APIs). A straightforward scale up approach using continuous flow photoreactors is also reported affording gram