马先蒿属植物苯丙素甙成分研究(Ⅰ)

近年来,由苯丙素和糖组成的苯丙素甙由于具有药理活性而受到人们的重视^[1～4].本文报道从穗花马先蒿(Pedicularis spicata)中分得的2个新苯丙素甙,马先蒿甙G(1)和H(2).     

马先蒿属植物苯丙素甙成分研究(Ⅱ)

马先蒿属(Pedicularis)植物广泛分布于西北和西南地区^[1].民间多用其根或茎入药,滋阴补肾^[2].本文报道从毛颏马先蒿(P.lasiophrys)中得到的马先蒿甙E(1)和从长花马先蒿(P.longifora)中分得的马先蒿甙Ⅰ(2).     

阿拉善马先蒿中新木脂素甙成分研究

阿拉善马先蒿中新木脂素甙成分研究高建军，刘自民，王继和，贾忠建（兰州大学有机化学研究所应用有机化学国家重点实验室，兰州，７３００００）关键词阿拉善马先蒿，玄参科，新木脂素甙前文［１］报道了从阿拉善马先蒿（ＰｅｄｉｃｕｌａｒｉｓａｌａｓｃｈａｎｉｃａＭ...     

中国马先蒿化学成分研究

中国马先蒿化学成分研究王长增,贾忠建（兰州大学有机化学研究所,应用有机化学国家重点实验室,兰州,７３００００）关键词中国马先蒿,玄参科,环烯醚萜,ＮＯＥ差谱,二维核磁中国马先蒿（Ｐｅｄｉｃｕｌａｒｉｓｃｈｉｎｅｎｓｉｓ）系玄参科马先蒿属植物。本文报道...     

木脂素类化合物的全合成研究

综述了本研究小组近几年在木脂素全合成研究中取得的新进展。主要包括三部分：通过β-酮酸酯偶联反应来合成去甲二氢愈创木酸及多种其它类型木脂素;通过氧化银偶联和DDQ合环首次合成黄酮木脂素(±)-Sinaiticin;通过Sharpless不对称双羟化为关键步骤首次手性合成1,4-苯并二氧六环类新木脂素。     

木脂素抗艾滋病病毒研究*

木脂素类化合物(lignans)具有抗癌、保肝、血小板活因子拮抗和抗氧化等重要生理活性.然而木脂素抗HIV的特性在90年代才被发现.作为一种源自于天然植物体内的艾滋病病毒抑制剂,它具有被开发成治疗艾滋病药物的可能性.本文综述了近年来关于木脂素类化合物抗艾滋病病毒的研究进展.     

丁烷型木脂素及衍生物的合成和生物活性

报道了一条合成丁烷木脂素的新路线. 以芳香醛为起始原料, Stobbe缩合和烷基化反应为关键步骤, 构建了木脂素骨架, 再经拆分及还原, 可得到相应的苏式和赤式异构体. 经官能团转化得到5个丁烷木脂素和8个丁醚木脂素, 其中3个天然产物为首次合成. 对合成产物进行抗HIV病毒和和抗疱疹病毒活性研究, 部分化合物显示出较高的抗病毒活性, 而且骨架构型对活性影响较大.     

二苯丁脂类木脂素及衍生物的合成和抗肿瘤活性研究

以胡椒醛和藜芦醛为原料, 通过Stobbe缩合和烷基化反应构建木脂素骨架、手性试剂拆分, 经官能团转换后, 得到了10个二苯丁脂类木脂素, 其中4个为天然产物. 合成得到的化合物进行了抗肿瘤活性测定, 结果表明, 部分化合物物具有较强的抑制乳腺癌细胞活性.     

阿拉善马先蒿植物中单萜环烯醚甙的研究

阿拉善马先蒿(Pedicularis alaschania maxim)系玄参科马先蒿属植物,民间可代替夏枯草入药,主治淋巴结核、淋巴腺炎、高血压和甲状腺肿大等疾病。其化学成分研究尚未见报道。我们从马先蒿中分离得到2个单萜环烯醚甙P1和P2。P2经质谱(FAB MS)、核磁共振谱(~1H和~(13)C NMR)和红外光谱等数据与文献对照确定为桃叶珊瑚甙(aucubin)。P1为一新化合物。本文报道它们的分离与鉴定。     

A New Neolignan Glycoside from Pedicularis armata

A new neolignan glycoside named armaoside (1) was isolated from the whole plant of Pedicularis armata Maxim. Its structure was elucidated by spectroscopic and chemical methods. Antibacterial assay showed that it has moderately antibacterial activities against Eschecichia coli, Bacillus subtilis and Staphylococcus aureus.     

A New Iridoid Glycoside and a New Iridoid from Pedicularis kansuensis f. aibiflora

A new iridoid glycoside 1 and a new iridoid 2 were isolated from the whole plant ofPedicularis kansuensis f. albiflora. Their structures were elucidated by spectroscopic methods.     

A New Iridoid Glycoside and a New Iridoid from Pedicularis kansuensis f. albiflora

A new iridoid glycoside 1 and a new iridoid 2 were isolated from the whole plant of Pedicularis kansuensis f. albiflora. Their structures were elucidated by spectroscopie methods.     

Secoiridoids and other chemotaxonomically relevant compounds in Pedicularis: phytochemical analysis and comparison of Pedicularis rostratocapitata Crantz and Pedicularis verticillata L. from Dolomites

We compared the respective metabolite patterns of two Pedicularis species from Dolomites. Seven phenylethanoid glycosides, i.e., verbascoside (1), echinacoside (2), angoroside A (3), cistantubuloside B1 (4), wiedemannioside C (5), campneoside II (11) and cistantubuloside C1 (12), together with several iridoid glucosides as aucubin (6), euphroside (7), monomelittoside (8), mussaenosidic acid (9) and 8-epiloganic acid (13) were identified. Pedicularis verticillata showed also the presence of greatly unexpected secoiridoids, ligustroside (14) and excelside B (15), very rare compounds in Lamiales. Both PhGs and iridoids are considered of taxonomical relevance in the Asteridae and their occurrence in Pedicularis was discussed. In particular, the exclusive presence of several compounds such as 8-epiloganic acid (13), campneoside II (11), cistantubuloside C1 (12), ligustroside (14) and excelside B (15) in Pedicularis rostratocapitata, and angoroside A (3), cistantubuloside B1 (4) and wiedemannioside C (5) in P. verticillata could be considered specific markers for the two botanical entities.     

铁轴草中Teucvidin的衍生物研究

从唇形科植物铁轴草中分离得去甲克罗烷二萜化合物Ｔｅｕｃｖｉｄｉｎ，通过催化氢化、酯交换、水解等反应合成了８个衍生物，用＾１ＨＮＭＲ、ＭＳ和ＩＲ确定了其结构，初步生物活性测定结果表明，化合物Ⅱ和Ⅳａ的拒食作用显著。     

川芎嗪的结构修饰及生物活性

介绍了川芎嗪的结构修饰及其衍生物的生物活性、川芎嗪衍生物合成及其在新药开发方面的发展前景。     

A New Lignan,Cagayanin, from Nutmeg of Myristica Cagayanensis Merr

A new lignan, cagayanin, has been isolated from the nutmeg of Myristica cagayanensis Merr. and elucidated as formula (5) by spectral and chemical evidence.