Titanium(II)-Mediated Cyclizations of (Silyloxy)enynes: A Total Synthesis of (−)-7-Demethylpiericidin A<sub>1</sub>
作者:Katie A. Keaton、Andrew J. Phillips
DOI:10.1021/ja057434k
日期:2006.1.1
A concise totalsynthesis of 7-demethylpiericidin A1 has been completed. The synthesis features a titanium(II)-mediated cyclization of a (silyloxy)enyne as the key step and proceeds in nine steps from tiglic aldehyde.
7-去甲基哌啶酮A1的简明全合成已完成。该合成以钛 (II) 介导的 (甲硅烷氧基) 烯炔环化为关键步骤,并从 tiglic 醛分九步进行。
Total synthesis of 4-epi-atpenin A5 as a potent nematode complex II inhibitor
elucidation of complex II functionality and that they could act as lead compounds for the development of novel helminth complex II-specific inhibitors. Recently, we discovered 4-epi-atpenin A5 as a potent nematode complex II inhibitor during our SAR studies of atpenin A5. This result led us to embark on a concise totalsynthesis of 4-epi-atpenin A5. In this study, we describe the totalsynthesis of 4-epi-atpenin
Synthesis and Antineoplastic Evaluation of Mitochondrial Complex II (Succinate Dehydrogenase) Inhibitors Derived from Atpenin A5
作者:Hezhen Wang、Bader Huwaimel、Kshitij Verma、James Miller、Todd M. Germain、Nihar Kinarivala、Dimitri Pappas、Paul S. Brookes、Paul C. Trippier
DOI:10.1002/cmdc.201700196
日期:2017.7.6
Mitochondrial complex II (CII) is an emerging target for numerous human diseases. Sixteen analogues of the CII inhibitor natural product atpenin A5 were prepared to evaluate the structure-activity relationship of the C5 pyridine side chain. The side chain ketone moiety was determined to be pharmacophoric, engendering a bioactive conformation. One analogue, 1-(2,4-dihydroxy-5,6-dimethoxypyridin-3-yl)hexan-1-one
[EN] METHOD OF TREATING CANCER WITH ATPENIN A5 DERVIATIVES<br/>[FR] MÉTHODE DE TRAITEMENT DU CANCER AVEC DES DÉRIVÉS D'ATPENIN A5
申请人:UNIV TEXAS TECH SYSTEM
公开号:WO2019217631A1
公开(公告)日:2019-11-14
The present invention includes molecules, composition, and methods for making and using a molecule having the formula (I), wherein R' is selected from H, methoxy, or methoxymethyl; X is selected from H, OH, methoxy, or methoxymethyl or O- methoxymethyl; Y is O; and R" is selected from H, OH, 2-furan, ethyl, propyl, pentyl, hexyl, heptyl, octyl, nonly, decyl, or dodecyl, that are saturated or unsaturated.
Synthetic atpenin analogs: Potent mitochondrial inhibitors of mammalian and fungal succinate-ubiquinone oxidoreductase
作者:Thomas P. Selby、Kenneth A. Hughes、James J. Rauh、Wayne S. Hanna
DOI:10.1016/j.bmcl.2010.01.066
日期:2010.3
Atpenins and harzianopyridone represent a unique class of penta-substituted pyridine-based natural products that are potent inhibitors of complex II (succinate-ubiquinone oxidoreductase) in the mitochondrial respiratory chain. These compounds block electron transfer in oxidative phosphorylation by inhibiting oxidation of succinate to fumarate and the coupled reduction of ubiquinone to ubiquinol. From our investigations of complex II inhibitors as potential agricultural fungicides, we report here on the synthesis and complex II inhibition for a series of synthetic atpenin analogs against both mammalian and fungal forms of the enzyme. Synthetic atpenin 2e provided optimum mammalian and fungal inhibition with slightly higher potency than natural occurring atpenin A5. (C) 2010 Elsevier Ltd. All rights reserved.