中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
槲皮素 | quercetol | 117-39-5 | C15H10O7 | 302.24 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | 1,3-bis-butyryloxy-11a-hydroxy-9-(3,5,7-tributyryloxy-4H-1-benzopyran-4-on-2-yl)-5a-(3,4-bisbutyryloxyphenyl)-5,5a,6,11,11a,12-hexahydro-5,6,11-trioxanaphthacene-12-one | 1383562-29-5 | C58H60O21 | 1093.1 |
—— | [4-[1,3,11a-Tri(hexadecanoyloxy)-12-oxo-9-[3,5,7-tri(hexadecanoyloxy)-4-oxochromen-2-yl]chromeno[3,2-b][1,4]benzodioxin-5a-yl]-2-hexadecanoyloxyphenyl] hexadecanoate | 1383562-38-6 | C158H258O22 | 2509.77 |
The direct acylation of quercetin (I) with 3-chloro-2,2-dimethylpropanoyl chloride (II) gives a complex reaction mixture. The synthesis of different acylated quercetin with from mono- to tetra-O-substituted functions was achieved in a simple procedure wherein the yield of isomers depended on the stoichiometric ratio of reagents. The crude reaction mixtures were analysed (LC-MS) and compared with the isolated products. Unambiguous structural characterisation of isomeric quercetin derivatives was confirmed by NMR analysis. In addition, the quercetin dimer can be obtained in a high yield in the simple procedure. The anti-oxidant activity and aldose reductase inhibition of the compounds were screened with the aim of providing bi-functional remedies to treat diabetic complications and other diseases where oxidative stress and the polyol pathway are key etiological factors.