中国豆科植物新分类群(一)

笔者经过长时间对豆科的海红豆属Adenanthera、红豆属Ormosia、野扁豆属Dunbaria、山黑豆属Dumasia、胡枝子属Lespedeza…等12个属作了专属系统分类研究,陆续发现了一些新分类群。于是进行再调研与复查核实,补点采集和确认论证,在本文先报导1个新属、4个新种、3个亚种新组合和2个新变种,它们都是中国地理分布的地区特有分类群(除去1个亚种)其余将在另文续报。除此。作了其化学成分、药理试验、花粉与种皮的扫描电镜SEM观测及拍片分析和花、果、叶片和幼枝的比较形态解剖等研究,为新分类群的分类和区别及其亲缘关系提供佐证,为其新药筛选和其他应用开发、保护提供依据或参考。     

鸡骨草的化学成分研究

目的研究鸡骨草Abrus cantoniensis全株的化学成分。方法柱色谱及高效液相色谱法分离其成分,光谱法鉴定其结构。结果分离鉴定了18个化合物,分别为β-谷甾醇(Ⅰ)、羽扇豆醇(Ⅱ)、原儿茶酸乙酯(Ⅲ)、胡萝卜苷(Ⅳ)、原儿茶酸(Ⅴ)、肌醇甲醚(Ⅵ)、7,3′,4′-三羟基-黄酮(Ⅶ)、腺嘌呤(Ⅷ)、腺嘌呤核苷(Ⅸ)、biflorin(Ⅹ)、isobi-florin(Ⅺ)、相思子碱(ⅩⅡ)、N,N,N-三甲基-色氨酸(ⅩⅢ)、大豆皂苷(ⅩⅣ))、槐花皂苷(ⅩⅤ)、去氢大豆皂苷(ⅩⅥ)、abrisaponin So1(ⅩⅦ)、白桦酸(ⅩⅧ)。结论Ⅲ、Ⅴ、Ⅶ～Ⅺ和皆为首次从本属中得到。除Ⅰ、ⅩⅡ、ⅩⅣ～ⅩⅥ外,其余13个化合物皆为首次从该植物中得到。     

Flavonoids from the seeds of Sphaerophysa salsula

Two new flavonoids, named sphaerophyside SA and sphaerophyside SB, together with 15 known flavonoids were isolated from the ethanolic extract of the seeds of Sphaerophysa salsula (Pall.) DC. The structures of the new compounds were elucidated mainly on the basis of the 1D and 2D NMR data.     

毛鸡骨草地上部分的化学成分

目的：对毛鸡骨草Abrus mollis Hance的化学成分进行研究。方法：运用多种柱层析方法进行分离纯化,通过波谱法鉴定分离得到的单体化合物的结构。结果：从毛鸡骨草地上部分的正丁醇部位分离并鉴定了8个化合物,黄酮类化合物：芹菜素-6-C-葡萄糖-8-C-葡萄糖苷（1）,芹菜素-6-C-阿拉伯糖-8-C-葡萄糖苷（2）,芹菜素-6-C-葡萄糖-8-C-阿拉伯糖苷（3）,芹菜素-6-C-葡萄糖-8-C-木糖苷（4）,木犀草素-6-C-葡萄糖苷（5）,木犀草素（6）;色原酮类化合物：异双花母草素（7）;木脂素类化合物：（＋）-异落叶松树脂醇（8）。结论：化合物1～8均为首次从该属植物中分离得到。     

中药海桐皮的生药鉴别

报道市售中药海桐皮来源于6种不同植物:豆科植物刺桐Erythrina variegata L.var.orientalis(L.)Merr.,芸香科植物樗叶花椒Zanthoxylum ailanthoides Sieb.et Zucc.,朵椒Z.molle Rehd.,凹头花椒Z.kemsleyanum Makino.,五加科植物刺楸Kalopanax septemlobus(Thunb.)Koidz.和木棉科植物木棉Gossampinus malabarica(DC.)Merr.。对6种树皮的生药性状、组织构造和粉末特征进行了比较鉴定。     

Anti-dermatophyte activity of Leguminosae plants from Southern Brazil with emphasis on Mimosa pigra (Leguminosae)

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葛的核型分析

本文通过对豆科Leguminosae植物葛Pucraria Lobata(Willd.)Ohwi.染色体数目的观察和核型分析的研究,发现葛的核型公式为2n=2x=24=20m+2sm+2m(SAT),第8对染色体长臂上带随体,此研究结果为药用植物葛的鉴定提供了细胞学资料.     

Saponins and flavonoid glycosides from yellow sweetclover

A new saponin, 3-O-[a-L-rhamnopyranosyl(1→2)-β-D-glucopyranosyl(1→2)-β-D-glucuronopyranosyl]soyasapogenol B carboxylate (6) has been isolated from the medicinal plant yellow sweetclover together with azukisaponin II(7), robinin(8), and clovin(9). 7, 8, and9 are reported for the first time from this plant. The new saponin(6) exhibited inhibitory action on leucocyte migration in inflammation.     

Three new isoprenylated flavonoids from the roots of Sophora flavescens

Three new flavonoids isoprenylated as 2,2-dimethyl-dihydropyran groups, named sophoranodichromanes A-C (1-3), have been isolated from the roots of Sophora flavescens, together with the known compounds, chrysophanol (4), soyasapogenol B (5) and β-sitosterol (6). Their structures have been elucidated by spectroscopic methods.     

Manuifolin Q,an unusual 4-aryl-substituted isoflavan from Maackia tenuifolia

Manuifolin Q (1), an unusual 4-aryl-substituted isoflavan, was isolated from the roots of Maackia tenuifolia. Its absolute configuration was determined as (3R,4R)-3,4-trans-7,2′-dihydroxy-4′-methoxy-4-[(2,4-dihydroxy-5-(1,1-dimethyl-2-propenyl)]-phenyl-isoflavan, on the basis of spectroscopic analysis.