Synthesis, Characterization, and Antioxidant Activities of Genistein, Biochanin A, and Their Analogues
作者:Salah Hamza Sherif、BerihuTekluu Gebreyohannes
DOI:10.1155/2018/4032105
日期:——
biochanin A (4) compounds and their analogues were synthesized from phloroglucinol. The structures of all the synthesized compounds were established by the combined use of , , IR spectral data, and mass spectrometry; their antioxidantactivities were investigated. Most of the synthesized compounds show moderate-to-high activity; only two compounds exhibit no significant activity.
从间苯三酚合成了一系列天然存在的染料木黄酮 (3) 和 biochanin A (4) 化合物及其类似物。所有合成化合物的结构均由 、 、红外光谱数据和质谱联用确定;研究了它们的抗氧化活性。大多数合成的化合物表现出中到高的活性;只有两种化合物没有显着的活性。
Mixed anhydride of acetic and formic acids in the synthesis of chromones
作者:V. G. Pivovarenko、V. P. Khilya
DOI:10.1007/bf00475243
日期:1992.5
Identification of Isoflavone Derivatives as Effective Anticryptosporidial Agents in Vitro and in Vivo
作者:Andrew V. Stachulski、Neil G. Berry、A. C. Lilian Low、Shelley L. Moores、Eleanor Row、David C. Warhurst、Ipemida S. Adagu、Jean-François Rossignol
DOI:10.1021/jm050973f
日期:2006.2.1
We report the preparation and antiparasitic activity in vitro and in vivo of a series of isoflavone derivatives related to genistein. These analogues retain the 5,7-dihydroxyisoflavone core of genistein: direct genistein analogues (2-H isoflavones), 2-carboethoxy isoflavones, and the precursor deoxybenzoins were all evaluated. Excellent in vitro activity against Cryptosporidium parvum was observed for both classes of isoflavones in cell cultures, and the lead compound 19, RM6427, shows high in vivo efficacy against an experimental infection.
Production of acetophenone C-glucosides using an engineered C-glycosyltransferase in Escherichia coli
作者:Dawei Chen、Ridao Chen、Kebo Xie、Yangyang Duan、Jungui Dai
DOI:10.1016/j.tetlet.2018.04.006
日期:2018.5
Eight novel acetophenone mono- and bis-C-glucosides were obtained by whole cells harboring an engineered C-glycosyltransferase. Optimization of the fed-bath process improved the yield of 4a to 0.97 mg/mL with 95% conversion rate, which is 2.9-fold higher than that of the single-bath. Four mono-C-glucosides (1a-4a) exhibited potent SGLT2 inhibitory activities with IC50 values at 10(-6) M. These findings provide a cost-effective and practical synthetic strategy to produce structurally diverse and novel bioactive C-glucosides for drug discovery. (C) 2018 Elsevier Ltd. All rights reserved.
Piwowarenko W. G., Khilja W. P., Khimija geterochikl. soed., (1992) N 5, S 595-600