Structure–activity relationship studies of curcumin analogues
摘要:
Two series of curcumin analogues, a total of twenty-four compounds, were synthesized and evaluated. The most potent compound, compound 23, showed potent growth inhibitory activities on both prostate and breast cancer lines with IC50 values in sub-micromolar range,fifty times more potent than curcumin. Curcumin analogues might be potential anti-tumor agents for breast and prostate cancers. (C) 2009 Elsevier Ltd. All rights reserved.
Highly Enantioselective Synthesis of Spiro[cyclohexanone-oxindoles] and Spiro[cyclohexanone-pyrazolones] by Asymmetric Cascade [5+1] Double Michael Reactions
作者:Bin Wu、Jian Chen、Mei-Qiu Li、Jin-Xin Zhang、Xiao-Ping Xu、Shun-Jun Ji、Xing-Wang Wang
DOI:10.1002/ejoc.201101529
日期:2012.3
The asymmetric catalytic synthesis of naturally occurring and biologically active spiro compounds is a challenge for modern chemical methodology. Here we report the construction of spiro compounds through cascade [5+1] double Michael reactions between divinyl ketones and N-unprotectedoxindoles or N-phenyl-protected pyrazolones catalyzed by a combination of the easily available 9-amino-9-deoxy-epi-quinine
Efficient synthesis of optically active 4-nitro-cyclohexanones via bifunctional thiourea-base catalyzed double-Michael addition of nitromethane to dienones
作者:Bin Wu、Guo-Gui Liu、Mei-Qiu Li、Yong Zhang、Shao-Yun Zhang、Jun-Ru Qiu、Xiao-Ping Xu、Shun-Jun Ji、Xing-Wang Wang
DOI:10.1039/c0cc05418f
日期:——
Thiourea-modified cinchona alkaloids as bifunctional catalysts and a base could catalyze a stepwise [5+1] cyclization of divinyl ketones with nitromethane via double Michael additions, furnishing optically active 4-nitro-cyclohexanones with good yields, excellent diastereoselectivities (>20 : 1) and high enantiomeric ratios (up to 97 : 3).
Structure–activity relationship studies of curcumin analogues
作者:James R. Fuchs、Bulbul Pandit、Deepak Bhasin、Jonathan P. Etter、Nicholas Regan、Dalia Abdelhamid、Chenglong Li、Jiayuh Lin、Pui-Kai Li
DOI:10.1016/j.bmcl.2009.01.104
日期:2009.4
Two series of curcumin analogues, a total of twenty-four compounds, were synthesized and evaluated. The most potent compound, compound 23, showed potent growth inhibitory activities on both prostate and breast cancer lines with IC50 values in sub-micromolar range,fifty times more potent than curcumin. Curcumin analogues might be potential anti-tumor agents for breast and prostate cancers. (C) 2009 Elsevier Ltd. All rights reserved.