Structural Requirements for the Antifungal Activities of Natural Drimane Sesquiterpenes and Analogues, Supported by Conformational and Electronic Studies
potential vanilloid 1 (TRPV1). Our group recently reported the synthesis and anticancer effects of polygodial and its derivatives, and showed that these compounds retain activity against apoptosis- and multidrug-resistant cancer cells. Herein, we tested the inhibitory effect of these compounds on the activity of the enzyme Na+/K+-ATPase (NKA) from kidney (α1 isoform) and brain (α2 and α3 isoforms) guinea
倍半萜多角体是瞬时受体电位香草酸1(TRPV1)的激动剂。我们的小组最近报道了多果体及其衍生物的合成和抗癌作用,并表明这些化合物保留了抗凋亡和耐多药癌细胞的活性。本文中,我们测试了这些化合物对豚鼠肾(α1亚型)和脑(α2和α3亚型)提取物Na + / K + -ATPase(NKA)酶的抑制作用。Polygodial(1)对肾脏和大脑纯化的NKA制剂均表现出剂量依赖性抑制作用,对脑亚型的敏感性更高。Polygo-11,12-二醇(2)和C11,C12-哒嗪衍生物(3)被证明是较弱的抑制剂。不饱和酯(4)和9-上颌骨(5)抑制了脑和肾脏的NKA制剂,具有相同的抑制效力。然而,即使在更高的浓度下,它们也没有达到最大的抑制作用。比较粗制匀浆和纯化的NKA制剂中的抑制能力,化合物4和5显示出对肾脏酶的选择性程度。动力学研究表明,化合物1、4和5对Na +和K +的非竞争性抑制,以及化合物1和4对A
Polygodial analog induces apoptosis in LNCaP prostate cancer cells
lead to side effects. Hence, there is an urgent need to identify novel chemotherapeutic agents. The aim of this study was to synthesize and evaluate the therapeutic effects of a synthetic analog of polygodial (PG), a pungent constituent abundantly present in mountain pepper, water pepper and dorrigo pepper, on LNCaP PCa cell line and its anti-cancer mechanisms in a preclinical study. We evaluated the
Partial Synthesis of (−)-11,12-Dinordriman-8-one and the (−)-Enantiomer of Polywood†
作者:Manuel Cortés、Luis Moreno、José López
DOI:10.1039/a702743e
日期:——
A chiral sequiterpene diol 6, readily available from the natural product polygodial (4), has been used for the first partialsynthesis of the title compounds.
Synthetic and Biological Studies of Sesquiterpene Polygodial: Activity of 9-Epipolygodial against Drug-Resistant Cancer Cells
作者:Ramesh Dasari、Annelise De Carvalho、Derek C. Medellin、Kelsey N. Middleton、Frédéric Hague、Marie N. M. Volmar、Liliya V. Frolova、Mateus F. Rossato、Jorge J. De La Chapa、Nicholas F. Dybdal-Hargreaves、Akshita Pillai、Véronique Mathieu、Snezna Rogelj、Cara B. Gonzales、João B. Calixto、Antonio Evidente、Mathieu Gautier、Gnanasekar Munirathinam、Rainer Glass、Patricia Burth、Stephen C. Pelly、Willem A. L. van Otterlo、Robert Kiss、Alexander Kornienko
DOI:10.1002/cmdc.201500360
日期:2015.12
In this investigation a series of polygodial analogues were prepared and investigated for TRPV1‐agonist and anticancer activities. These experiments led to the identification of 9‐epipolygodial, which has antiproliferative potency significantly exceeding that of polygodial. 9‐Epipolygodial was found to maintain potency against apoptosis‐resistant cancer cells as well as those displaying the multidrug‐resistant
The three possible isomers of polygodial, epimers at C-9, cis and trans fused, are described. Controlled kinetic and thermodynamic epimerizations allow preparation of all stereoisomers from the same key intermediate.