Inhibitors of cAMP Phosphodiesterase in Medicinal Plants. Part XVIII. Inhibitors of Adenosine 3',5'-Cyclic Monophosphate Phosphodiesterase from Schisandra chinensis and the Structure Activity Relationship of Lignans.
Synthesis and the hepatoprotective activity of dibenzocyclooctadiene lignan derivatives
作者:Tao He、Qing-Yao Wang、Jing-Zhen Shi、Tian-Yun Fan、Chen Yan、Lie-Jun Huang、Sheng Liu、Xiao-Jiang Hao、Shu-Zhen Mu
DOI:10.1016/j.bmcl.2014.02.020
日期:2014.4
The halogenated and oxidized derivatives (–, ′–′, –, ′–′, –, ′ and ′–′) of schizandrin (), schizandrin B () and schisanhenol () were synthesized. The hepatoprotective effects of these dibenzocyclooctadienelignan analogues against CCl-induced injury were preliminarily evaluated. Most of the analogues exhibited higher protective effects than the positive control biphenyldicarboxylate (DDB). Among these
Inhibitors of cAMP Phosphodiesterase in Medicinal Plants. Part XVIII. Inhibitors of Adenosine 3',5'-Cyclic Monophosphate Phosphodiesterase from Schisandra chinensis and the Structure Activity Relationship of Lignans.
The structure activity relationship was studied in analogous lignans from Schisandra chinensis and their derivatives. These compounds were tested for cyclic adenosine 3', 5'-monophosphate (cAMP) phosphodiesterase inhibition. An inhibitor, nordihydroguaiaretic acid (13), was isolated from this plant, so we discussed this compound and a derivative, nordihydroguaiaretic acid tetramethyl ether, using molecular mechanics involving three-dimensional modeling and minimization of the structure using the MM2PP program. As a result, it was found that the structure of nordihydroguaiaretic acid tetrametyl ether and papaverine (30) (positive control) shared a similar low energy conformation. This fact suggested that these compounds inhibited cAMP phosphodiesterase by a similar mechanism.