A new synthesis of the ajoene pharmacophore core is presented involving the regioselective radical addition of a thiyl radical to a terminal alkyne as the key step. The synthesis allows structural variation of the two end groups on sulfur, and a range of novel derivatives varying the R(1) group (sulfoxide end) has been prepared and tested against CT-1 transformed. broblast cells for anti-cancer activity. The results indicate comparable or even improved activity compared to the parent natural product ajoene isomers. This opens up the way to systematically studying the biology of the ajoene core. (c) 2008 Elsevier Ltd. All rights reserved.
作者:Roger Hunter、Catherine H. Kaschula、Iqbal M. Parker、Mino R. Caira、Philip Richards、Susan Travis、Francois Taute、Thozama Qwebani
DOI:10.1016/j.bmcl.2008.08.056
日期:2008.10
A new synthesis of the ajoene pharmacophore core is presented involving the regioselective radical addition of a thiyl radical to a terminal alkyne as the key step. The synthesis allows structural variation of the two end groups on sulfur, and a range of novel derivatives varying the R(1) group (sulfoxide end) has been prepared and tested against CT-1 transformed. broblast cells for anti-cancer activity. The results indicate comparable or even improved activity compared to the parent natural product ajoene isomers. This opens up the way to systematically studying the biology of the ajoene core. (c) 2008 Elsevier Ltd. All rights reserved.
Structure–activity studies on the anti-proliferation activity of ajoene analogues in WHCO1 oesophageal cancer cells
作者:Catherine H. Kaschula、Roger Hunter、Nashia Stellenboom、Mino R. Caira、Susan Winks、Thozama Ogunleye、Philip Richards、Jonathan Cotton、Kani Zilbeyaz、Yabing Wang、Vuyolwethu Siyo、Ellen Ngarande、M. Iqbal Parker
DOI:10.1016/j.ejmech.2012.01.058
日期:2012.4
organosulfur compound ajoene derived from the rearrangement of allicin found in crushed garlic can inhibit the proliferation of tumour cells by inducing G2/M cell cycle arrest and apoptosis. We report on the application of a concise four-step synthesis (Hunter et al., 2008 [1]) that allows access to ajoene analogues with the end allyl groups substituted. A library of twelve such derivatives tested for