对于某些生物碱和相关药物的合成方法,β-酰胺基酯向β-烯氨基酯的转化是必不可少的步骤。用于这种转化的已知方法不仅是逐步的,而且以低原子效率进行。本文中,我们报道了一种直接且通用的方法,其特征在于用1,1,3,3-四甲基二硅氧烷(TMDS)进行Ir催化的β-酰胺基酯的化学选择性还原。另外,在某些脂环族β-烯胺酯的13 C NMR光谱中观察到缺少某些信号。这揭示了文献中长期存在但被忽略的现象。
A green H2O-promoted solvent-free hydroamination of electron-deficient terminal alkynes with amines has been developed. All secondary amines, including aliphatic and aromaticamines, gave the corresponding (E)-enamines in good to excellent yields, whereas primary aromaticamines afforded Z-configured products in moderate yields. Propiolates, propyn-1-ones, propynamides, and 1-(ethynylsulfonyl)-4-methylbenzene
[EN] IMIDAZOPYRIDAZINES AS MODULATORS OF IL-17<br/>[FR] IMIDAZOPYRIDAZINES EN TANT QUE MODULATEURS DE L'IL-17
申请人:JANSSEN BIOTECH INC
公开号:WO2021222404A1
公开(公告)日:2021-11-04
The present application discloses compounds having the following formula: (I), or pharmaceutically acceptable salts thereof, wherein R1, R2, R3, R4 and R5 are defined in the specification, as well as methods of making and using the compounds disclosed herein for treating or ameliorating an IL-17 mediated syndrome, disorder and/or disease.
ETHANEDIAMINE-HETEROCYCLE DERIVATIVES AS INHIBITORS OF PROTEIN ARGININE METHYLTRANSFERASES
申请人:Board of Regents, The University of Texas System
公开号:US20190270739A1
公开(公告)日:2019-09-05
The present invention relates to ethanediamine-heterocycle compounds that are able to act as inhibitors of PRMTs (protein arginine methyltransferases) for treating cancer and other diseases mediated by PRMTs.
[EN] PYRAZOLO[1,5a]PYRIMIDINE DERIVATIVES AS IRAK4 MODULATORS<br/>[FR] DÉRIVÉS PYRAZOLO[1,5A]PYRIMIDINE UTILISÉS EN TANT QUE MODULATEURS DE IRAK4
申请人:HOFFMANN LA ROCHE
公开号:WO2018234345A1
公开(公告)日:2018-12-27
Compounds of Formula (I), Formula (II), Formula (III), Formula (IV), Formula (V), Formula (VI), Formula (VII), Formula (VIII), and methods of use as lnterleukin-1 Receptor Associated Kinase (IRAK4) inhibitors are described herein.
[EN] PYRAZOLOPYRIMIDINE JAK INHIBITOR COMPOUNDS AND METHODS<br/>[FR] COMPOSÉS INHIBITEURS DE JAK À LA PYRAZOLOPYRIMIDINE ET PROCÉDÉS
申请人:GENENTECH INC
公开号:WO2010051549A1
公开(公告)日:2010-05-06
The invention provides JAK kinase inhibitors of Formula Ia, enantiomers, diasteriomers or pharmaceutically acceptable salts thereof, wherein R1, R2, R7 and Z are defined herein, a pharmaceutical composition that includes a compound of Formula Ia and a pharmaceutically acceptable carrier, adjuvant or vehicle, and methods of treating or lessening the severity of a disease or condition responsive to the inhibition of a JAK kinase activity in a patient. Ia