设计,合成和评估了一系列同型异黄酮衍生物,作为潜在的多功能抗阿尔茨海默氏病药物对胆碱酯酶和单胺氧化酶的抑制活性。其中,化合物16显示出中等的乙酰胆碱酯酶(AChE)抑制活性(eeAChE IC 50 = 0.89±0.02μM; hAChE IC 50 = 0.657±0.002μM )和显着的单胺氧化酶B(MAO-B)抑制活性(hMAO-B IC 50 = 0.0372±0.0002μM)。AChE的动力学分析,对MAO-B的抑制和分子模型研究表明,化合物16是AChE的双重结合位点抑制剂,是MAO-B的非竞争性抑制剂。再说16可以在体外穿透血脑屏障(BBB)。最重要的是,口服16剂没有明显的急性毒性迹象,并且可以显着逆转东pol碱引起的小鼠记忆障碍。这些结果表明,化合物16是有前途的多功能药物候选物,具有治疗阿尔茨海默氏病的潜在作用。
Facile synthesis of spiro chromanone-tetrahydrothiophenes with three contiguous stereocenters via sulfa-Michael/aldol cascade reactions
作者:Ya-Jian Hu、Xiao-Bing Wang、Su-Yi Li、Sai-Sai Xie、Kelvin D.G. Wang、Ling-Yi Kong
DOI:10.1016/j.tetlet.2014.11.026
日期:2015.1
A novel sulfa-Michael/aldol cascade reaction of (E)-3-arylidenechroman-4-ones with 1,4-dithiane-2,5-diol has been developed. This method provides a new practical and facile approach to 4′-hydroxy-2′-aryl-4′,5′-dihydro-2′H-spiro[chroman-3,3′-thiophen]-4-ones with three contiguous stereocenters in high yields. The transformation is atom-economic with good to excellent diastereoselectivities.
Synthesis and antifungal activity of some 3-benzylidenechroman-4-ones, 3-benzylidenethiochroman-4-ones and 2-benzylidene-1-tetralones
作者:T Al Nakib、V Bezjak、MJ Meegan、R Chandy
DOI:10.1016/0223-5234(90)90010-z
日期:1990.6
Molecular aspects on the specific interaction of homoisoflavonoids to DNA
作者:Shohreh Nafisi、Roshanak Namdar
DOI:10.1016/j.jphotobiol.2012.09.016
日期:2012.12
Homoisoflavonoids (3-benzylidenechroman-4-ones) are related to flavonoids and occur as natural products and exhibit biological activity. These compounds have been reported to possess antioxidant, antifungal, hypocholesterolemic, antimutagenic and antiviral activities. This study was designed to examine the interactions of four synthetic homoisoflavonoids (BMC, BPC, HBC and HBMC) with calf-thymus DNA in aqueous solution at physiological conditions, using constant DNA concentration (6.25 mM) and various homoisoflavonoids/polynucleotide (phosphate) ratios of 1/120, 1/80, 1/40, 1/20, 1/10 and 1/5. Fourier transform infrared (FTIR) and UV-Visible spectroscopic methods were used to determine the ligand binding modes, the binding constants and the stability of homoisoflavonoids-DNA complexes in aqueous solution. Spectroscopic evidence showed major binding of homoisoflavonoids to DNA with overall binding constants of KBMC-DNA = 9.37(+/- 0.34) x 10(3) M-1, KBPC-DNA 1.8(+/- 0.09) x 10(4) M-1, KHBC-DNA = 1.3(+/- 019) x 10(3) M-1 and KHBMC-DNA = 4.7(+/- 0.41) x 10(3)M(-1). The affinity of homoisoflavonoids-DNA binding is in the order of BPC > BMC > HBMC > HBC. No biopolymer secondary structural changes were observed upon homoisoflavonoids interaction and DNA remains in the B-family structure in these complexes. (C) 2012 Published by Elsevier B.V.
MULVAGH D.; MEEGAN M. J.; DONNELLY D., J. CHEM. RES. SYNOP., 1979, NO 4, 137, (M 1713-1731)
作者:MULVAGH D.、 MEEGAN M. J.、 DONNELLY D.
DOI:——
日期:——
KIRKIACHARIAN, SERGE;GOMIS, MICHEL;KOUTSOURAKIS, PANTELIS, EUR. J. MED. CHEM., 24,(1989) N, C. 309-311