Catalytic asymmetric hydrogenation of heterocyclic ketone-derived hydrazones, pronounced solvent effect on the inversion of configuration
摘要:
An enantioselective hydrogenation of hydrazones derived from heterocyclic ketones was developed with up to 85% ee. The enantiomeric purity was enriched to >99% ee by crystallization from EtOAc in >80% yield. Optimization studies have revealed a notable solvent effect that resulted in inversion of enantioselectivity from 85% ee in MeOH to -27% ee in DCE. The hydrazone geometry and possible hydrogenation via endocyclic alkene were examined as possible factors for the inversion of enantioselectivity. (C) 2011 Elsevier Ltd. All rights reserved.
[EN] SMALL MOLECULE ACTIVATORS OF NICOTINAMIDE PHOSPHORIBOSYLTRANSFERASE (NAMPT) AND USES THEREOF<br/>[FR] ACTIVATEURS À PETITES MOLÉCULES DE NICOTINAMIDE PHOSPHORIBOSYLTRANSFÉRASE (NAMPT) ET LEURS UTILISATIONS
申请人:SANFORD BURNHAM PREBYS MEDICAL DISCOVERY INST
公开号:WO2018132372A1
公开(公告)日:2018-07-19
Provided herein are small molecule activators of Nicotinamide Phosphoribosyltransferase (NAMPT), compositions comprising the compounds, and methods of using the compounds and compositions.
[EN] PYRROLO [2, 3-B] PYRIDINES OR PYRROLO [2, 3-B] PYRAZINES AS HPK1 INHIBITOR AND THE USE THEREOF<br/>[FR] PYRROLO [2, 3-B] PYRIDINES OU PYRROLO [2, 3-B] PYRAZINES COMME INHIBITEUR DE HPK1 ET LEUR UTILISATION
申请人:BEIGENE LTD
公开号:WO2019238067A1
公开(公告)日:2019-12-19
Disclosed herein is a compound of Formula (AIII) or (III), or a stereoisomer thereof, or a pharmaceutically acceptable salt thereof, and pharmaceutical compositions comprising thereof. Also disclosed is a method of treating HPK1 related disorders or diseases by using the compound disclosed herein.
Processes for the Manufacture of Chiral and Racemic Forms of 3-Aminotetrahydrofurans, Their Salts and Derivatives
申请人:Majeed Muhammed
公开号:US20080255377A1
公开(公告)日:2008-10-16
A novel process for the synthesis of (S)-3-Amino-tetrahydrofuran and (R)-3-Amino-tetrahydrofuran is described. The process is applicable for substituted chiral-3-aminotetrahydrofuran derivatives.
[EN] COMPOUNDS DERIVED FROM AN AMINE NUCLEUS THAT ARE INHIBITORS OF IMPDH ENZYME<br/>[FR] COMPOSES DERIVES D'UN NOYAU AMINE INHIBITEURS DE L'ENZYME IMPDH
申请人:BRISTOL MYERS SQUIBB CO
公开号:WO2000025780A1
公开(公告)日:2000-05-11
The present invention discloses the identification of the novel inhibitors of IMPDH (inosine-5'-monophosphate dehydrogenase). The compounds and pharmaceutical compositions disclosed herein are useful in treating or preventing IMPDH mediated diseases, such as transplant rejection and autoimmune diseases.