Unnatural α-Amino Acid Synthesized through α-Alkylation of Glycine Derivatives by Diacyl Peroxides
作者:Hao Tian、Wentao Xu、Yuxiu Liu、Qingmin Wang
DOI:10.1021/acs.orglett.0c01574
日期:2020.7.2
We have developed a protocol for catalyst- and additive-free α-alkylationreactions of glycine derivatives with diacyl peroxides, which proceed by a pathway involving addition of alkyl radicals to imine intermediates. The diacyl peroxide substrate acts as both alkylation agent and oxidizing agent, which means it is atom-economical. It was applied to various glycine derivatives, dipeptides, and a 3
[EN] 1-PROPANOL AND 1-PROPYLAMINE DERIVATIVES AND THEIR USE AS GLUCOCORTICOID LIGANDS<br/>[FR] DERIVES DE 1-PROPANOL ET 1-PROPYLAMINE ET LEUR UTILISATION EN TANT QUE LIGANDS DE GLUCOCORTICOIDE
申请人:BOEHRINGER INGELHEIM PHARMA
公开号:WO2004063163A1
公开(公告)日:2004-07-29
Compounds of Formula (I) wherein R1, R2 R3, R4, R5, R6, and X are as defiend herein for Formula (IA) and Formula (IB), or a tautomer, prodrug, solvate, or salt thereof; pharmaceutical compositions containing such compounds, and methods of modulating the glucocoricoid receptor function and methods of treating disease-states or conditions mediated by the glucocorticoid receptor function or characterized by inflammatory, allergic, or proliferative processes in a patient using these compounds.
A Combination of Visible-Light Organophotoredox Catalysis and Asymmetric Organocatalysis for the Enantioselective Mannich Reaction of Dihydroquinoxalinones with Ketones
作者:Jaume Rostoll-Berenguer、Gonzalo Blay、M. Carmen Muñoz、José R. Pedro、Carlos Vila
DOI:10.1021/acs.orglett.9b02157
日期:2019.8.2
An enantioselective photooxidative Mannich reaction of dihydroquinoxalinones with ketones by the merger of organophotoredox and asymmetric organocatalysis is described. This protocol features very mild reaction conditions using simple and cheap catalysts (Eosin Y and (S)-Proline) for the synthesis of chiral quinoxaline derivatives with good to high yields (up to 94%) and excellent enantioselectivities
[EN] INDANE DERIVATIVES USEFUL AS MODULATORS OF MGLUR7<br/>[FR] DÉRIVÉS D'INDANE UTILES EN TANT QUE MODULATEURS DE MGLUR7
申请人:TAKEDA PHARMACEUTICALS CO
公开号:WO2018047983A1
公开(公告)日:2018-03-15
The present invention provides compounds of formula (I) and pharmaceutically acceptable salts thereof, wherein n, X, Y, Z, D, R1, R2, R3, R4, R12, R15nd R16 are as defined in the specification, a process for their preparation, pharmaceutical compositions containing them and their use as modulators of mGluR7.
A new one-pot strategy for the synthesis of quinoxalin-2-ones from the tandem nitrosation/cyclization reaction of N-aryl cyanoacetamides with tert-butyl nitrite has been developed. The dehydrogenative N-incorporation is achieved through a sequence of nitrosation, tautomerization, and cyclization, affording quinoxalin-2-ones in moderate to good yields with good functional group tolerance.