Fine-tuning catalytic activity and selectivity—[Rh(amino acid thioamide)] complexes for efficient ketone reduction
摘要:
Amino acid-derived thioamides are prepared and evaluated as ligands in the rhodium-catalyzed asymmetric transfer hydrogenation of ketones in 2-propanol. It is found that increasing the steric bulk at the C-terminus of the ligand had a positive impact on both activity and selectivity in the reduction reaction. In order to find the optimum catalyst, a study is performed on a series of thioamide ligands having substituents of varying size. (C) 2009 Elsevier Ltd. All rights reserved.
Fine-tuning catalytic activity and selectivity—[Rh(amino acid thioamide)] complexes for efficient ketone reduction
摘要:
Amino acid-derived thioamides are prepared and evaluated as ligands in the rhodium-catalyzed asymmetric transfer hydrogenation of ketones in 2-propanol. It is found that increasing the steric bulk at the C-terminus of the ligand had a positive impact on both activity and selectivity in the reduction reaction. In order to find the optimum catalyst, a study is performed on a series of thioamide ligands having substituents of varying size. (C) 2009 Elsevier Ltd. All rights reserved.
DIPEPTIDES AS INHIBITORS OF HUMAN IMMUNOPROTEASOMES
申请人:CORNELL UNIVERSITY
公开号:US20170121366A1
公开(公告)日:2017-05-04
The compounds of the present invention are represented by the following compounds having Formula (I) where the substituents R
1
-R
10
, X, Y, k, m, n, q, and s are as defined herein. These compounds are used in the treatment of cancer, immunologic disorders, autoimmune disorders, neurodegenerative disorders, or inflammatory disorders or for providing immunosuppression for transplanted organs or tissues.
[EN] DIPEPTIDES AS INHIBITORS OF HUMAN IMMUNOPROTEASOMES<br/>[FR] DIPEPTIDES UTILISÉS EN TANT QU'INHIBITEURS DES IMMUNOPROTÉASOMES HUMAINS
申请人:UNIV CORNELL
公开号:WO2015106200A2
公开(公告)日:2015-07-16
The compounds of the present invention are represented by the following compounds having Formula (I) where the substituents R1-R10, X, Y, k, m, n, q, and s are as defined herein. These compounds are used in the treatment of cancer, immunologic disorders, autoimmune disorders, neurodegenerative disorders, or inflammatory disorders or for providing immunosuppression for transplanted organs or tissues.