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首页> 外文会议>International Symposium on Wood Science and Technology（IAWPS 2008）(国际木材产品学会联合会2008学术研讨会) >Stereochemistry on the Formation of Syringylglycerol-8-O-4'-(Sinapyl Alcohol) Ether from Sinapyl Alcohol with Enzyme Preparations of Eucommia ulmoides
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Stereochemistry on the Formation of Syringylglycerol-8-O-4'-(Sinapyl Alcohol) Ether from Sinapyl Alcohol with Enzyme Preparations of Eucommia ulmoides

机译：杜仲杜仲的酶法制备自Sinapyl醇形成Syringylglycerol-8-O-4'-（Sinapyl Alcohol）醚的立体化学

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Introduction Lignans and neolignans are dimeric phenylpropanoides and widely distributed in higher plants. Most of them are optically active. They have important physiological functions in plant defense and human health. Recently, its have been reported that Surinamensin (8-0-4' neolignan) has potential anti-leishmanial activity. In contrast to lignans, biosynthesis of 8-0-4" neolignans has not been advanced. However, Katayama and Kado found for the first time that incubation of cell-free extracts from Eucommia ulmoides with coniferyl alcohol (CA) in the presence of H2O2 gave (+)-erythro-and (-)-threo-guaiacylglycerol-8-O-4'-(coniferyl alcohol) ether (GGCE) and that the erythro isomer was preferred to the threo one. Very recently Lourith et al.1 found the stereoselective formation of erythro-GGSE and erythro-syringylglycerol-8-O-4'-(sinapyl alcohol) ether (SGSE) with optical activity by feeding experiments, in this study, to clarify stereochemistry on the formation of SGSE from sinapyl alcohol (SA) in E. ulmoides, enzyme reactions were carded out.
机译：简介木质素和新木脂素是二聚苯丙酸酯，广泛分布于高等植物中。它们大多数是光学活性的。它们在植物防御和人类健康中具有重要的生理功能。最近，有报道称苏里南门素（8-0-4'neolignan）具有潜在的抗利什曼活性。与木脂素相反，尚未推进8-0-4“新木脂素的生物合成。但是，Katayama和Kado首次发现在H2O2存在下，将杜仲杜仲无细胞提取物与松柏醇（CA）一起孵育Lourith等[1]给出了（+）-赤型-和（-）-苏式-愈创甘油基甘油-8-O-4'-（松柏醇）醚（GGCE），并且该型的异构体比苏式更合适。通过进料实验发现了具有光学活性的赤型-GGSE和赤型-丁香基甘油-8-O-4'-（芥子醇）醚（SGSE）的立体选择性形成，本研究旨在阐明由芥子醇形成SGSE的立体化学（SA）在ulmoides中被酶解。

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