[EN] SUBSTITUTED BRIDGED UREA ANALOGS AS SIRTUIN MODULATORS<br/>[FR] ANALOGUES D'URÉE PONTÉS SUBSTITUÉS EN TANT QUE MODULATEURS DE SIRTUINE
申请人:GLAXOSMITHKLINE IP NO 2 LTD
公开号:WO2016079709A1
公开(公告)日:2016-05-26
The present invention relates to novel substituted bridged urea analog compounds of Formula (I) or pharmaceutically acceptable salts thereof, corresponding pharmaceutical compositions, processes for making and use of such compounds, alone or in combination with other therapeutic agents, as Sirtuin Modulators useful for increasing lifespan of a cell, and for use in treating and/or preventing a wide variety of diseases and disorders, which include, but are not limited to, for example, diseases or disorders related to aging or stress, diabetes, obesity, neurodegenerative diseases, cardiovascular disease, blood clotting disorders, inflammation, cancer, and/or flushing as well as diseases or disorders that would benefit from increased mitochondrial activity.
ω-transaminases were tested for the synthesis of enantiomerically pure amines from the corresponding ketones employing D- or L-alanine as amino donor and lactate dehydrogenase to remove the side-product pyruvate to shift the unfavourable reaction equilibrium to the product side. Both enantiomers, (R)- and (S)-amines, could be prepared with up to 99% ee and >99% conversions within 24 h at 50 mM substrate concentration
测试了各种ω-转氨酶,以D-或L-丙氨酸为氨基供体和乳酸脱氢酶从相应的酮合成对映体纯的胺,以除去副产物丙酮酸,从而将不利的反应平衡转移至产物侧。(R)-和(S)-胺这两种对映异构体均可以在50 mM底物浓度下于24小时内以高达99%ee和> 99%的转化率制备。胺化反应的活性和立体选择性取决于所用的ω-转氨酶和底物。此外,助溶剂显着影响转氨酶的立体选择性和活性。通过使用ATA-117获得(R对映体和ATA-113或ATA-103,以15%v v -1 DMSO进入(S)对映体。
Enzymatic Racemization of Amines Catalyzed by Enantiocomplementary ω-Transaminases
作者:Dominik Koszelewski、Barbara Grischek、Silvia M. Glueck、Wolfgang Kroutil、Kurt Faber
DOI:10.1002/chem.201001602
日期:2011.1.3
A strategy for the biocatalytic racemization of primary α‐chiral amines was developed by employing a pair of stereocomplementary PLP‐dependent ω‐transaminases. The interconversion of amine enantiomers proceeded through reversible transamination by a prochiral ketone intermediate, either catalyzed by a pair of stereocomplementary ω‐transaminases or by a single enzyme possessing low stereoselectivity
Stereoselectivity of Four (R)-Selective Transaminases for the Asymmetric Amination of Ketones
作者:Francesco G. Mutti、Christine S. Fuchs、Desiree Pressnitz、Johann H. Sattler、Wolfgang Kroutil
DOI:10.1002/adsc.201100558
日期:2011.11
Four (R)-ω-transaminases originating from Hyphomonas neptunium (HN-ωTA), Aspergillus terreus (AT-ωTA) and Arthrobacter sp. (ArR-ωTA), as well as an evolved transaminase (ArRmut11-ωTA) were successfully employed for the amination of prochiral ketones leading to optically pure (R)-amines. The first three transaminases displayed perfect stereoselectivity for the amination of all substrates tested (ee