[EN] 2-OXO-2,3-DIHYDRO-1H-IMIDAZO[4,5-B]PYRIDIN-6-YL)-4-METHYLBENZAMIDE DERIVATIVES AND SIMILAR COMPOUNDS AS RIPK2 INHIBITORS FOR TREATING E.G. AUTOIMMUNE DISEASES [FR] DÉRIVÉS DE 2-OXO-2,3-DIHYDRO-1H-IMIDAZO[4,5-B]PYRIDIN-6-YL)-4-MÉTHYLBENZAMIDE ET COMPOSÉS SIMILAIRES UTILISÉS EN TANT QU'INHIBITEURS DE RIPK2 POUR TRAITER PAR EXEMPLE DES MALADIES AUTO-IMMUNES
Autoinductive conversion of α,α-diiodonitroalkanes to amides and esters catalysed by iodine byproducts under O<sub>2</sub>
作者:Jing Li、Martin J. Lear、Yujiro Hayashi
DOI:10.1039/c8cc03191f
日期:——
Studies to convert nitroalkanes into amides and esters using I2 and O2 revealed in situ-generated iodine species facilitate the homolytic C–I bond cleavage of α,α-diiodonitroalkanes, arguably in an autoinductive or autocatalytic manner. Consequently, we devised a rapid and economical I2/O2-based method to synthesise stericallyhinderedesters directly from primary nitroalkanes.
使用I 2和O 2将硝基烷烃转化为酰胺和酯的研究表明,原位生成的碘可促进α,α-二碘硝基烷烃的均质C–I键裂解,可以说是自感应或自催化方式。因此,我们设计了一种快速且经济的基于I 2 / O 2的方法,直接从伯硝基烷烃中合成位阻酯。
Discovery of carboxypeptidase Y as a catalyst for the incorporation of sterically demanding α-fluoroalkyl amino acids into peptides
作者:Sven Thust、Beate Koksch
DOI:10.1016/j.tetlet.2003.12.007
日期:2004.2
The first example of a direct enzymatic coupling of two different, sterically demanding C-alpha-fluoroalkyl amino acids to amino acid nucleophiles is reported. N-Protected Ala methyl ester derivatives bearing a methyl-, difluoromethyl-, or trifluoromethyl group, respectively, instead of the alpha-proton were accepted as substrates by carboxypeptidase Y and could, therefore, be coupled directly to various nucleophiles. (C) 2003 Published by Elsevier Ltd.
Sharma, N.K.; Anteunis, M.J.O., Bulletin des Societes Chimiques Belges, 1987, vol. 96, # 6, p. 467 - 472