作者:Jih Ru Hwu、Ming-Hua Hsu、Ru Chih C. Huang
DOI:10.1016/j.bmcl.2008.02.018
日期:2008.3
Reaction of nordihydroguaiaretic acid with various alkyl chloride, 1-piperidinecarbonyl chloride, methyl chloroformate, or 1,1'-carbonyldiimidazole under alkaline conditions produced the corresponding phenol ethers, carbamates and carbonates, respectively, in 67 - 83% yields. Among these derivatives, the nitrogen-containing compounds were converted to the corresponding hydrochloride salts. Having good solubility, these NDGA derivatives were found stable in aqueous solution. These new compounds exerted appealing activity against HIV Tat-regulated transactivation in human epithelial cells. The most potent compound meso-2,3dimethyl- 1,4-bis( 3,4-[2-(piperdino) ethoxyphenyl]) butane tetrakishydrochloride salt (5b) showed IC50 value of 0.88 mu M. (C) 2008 Elsevier Ltd. All rights reserved.