一测多评法测定复方人参片中的8种苷类成分

目的 建立一测多评法（quantitative analysis single-marker,QAMS）测定复方人参片中8种苷类成分的含量。方法 采用Agilent XDB-C₁₈色谱柱（4.6 mm×250 mm,5 μm）,流动相水（A）-乙腈（B）,梯度洗脱;体积流量1.0 mL·min^-1;检测波长203 nm;柱温：25℃。以人参皂苷Rb₁为内标,计算人参皂苷Rg₁、人参皂苷Re、淫羊藿苷、人参皂苷Rc、人参皂苷Rb₂、人参皂苷Rb₃、人参皂苷Rd的相对校正因子,测定其含量。结果 8种成分在各自范围内线性关系良好（r ≥ 0.999 0）,加样回收率为95.6%~104.4%,RSD为1.22%~2.73%,QAMS测定结果与外标法测定结果无显著性差异。结论 该法准确度、灵敏度高、专属性好、操作简单、重复性好。     

雷公藤多苷治疗强直性脊柱炎的疗效及安全性分析研究

目的：研究雷公藤多苷治疗强直性脊柱炎的有效性及安全性。方法：选取我院2009年1月-2013年12月收治的强直性脊柱炎患者50例,采取随机数字表法分为两组,每组25例。对照组给予柳氮磺胺吡啶片治疗,试验组给予雷公藤多苷片治疗,观察与比较两组患者经不同药物治疗的临床疗效及安全性。结果：试验组优良率明显高于对照组（P〈0.05）,差异具有统计学意义。两组患者分别出现肝功能异常、腹泻及月经推迟的患者数无明显差异（P〉0.05）,差异不具有统计学意义。结论：雷公藤多苷片治疗强直性脊柱炎的临床效果显著,且不良反应的发生率无明显增加,提升了用药的安全性,值得广泛推广。     

A new eudesmane sesquiterpene glycosides from Liriope muscari

A new eudesmane sesquiterpene glycoside, ophiopogonoside B (1), along with five known compounds, ophiopogonoside A (2), ruscogenin-1-O-[β-d-glucopyranosyl (1 → 2)]-[β-d-xylopyranosyl (1 → 3)]-β-d-fucopyranoside (3), palmitic acid (4), palmitic acid glyceride (5), and β-sitosterol-d-glucopyranoside (6),was isolated from the tuberous roots of Liriope muscari (Decn.) Bailey (Liliaceae). Their structures were confirmed by 1D and 2D NMR spectroscopy. Among them, compounds 1, 2, 4, and 5 were the first reported from the genus Liriope. Ophiopogonoside B (1) showed moderate inhibitory activity to glycogen phosphorylase a.     

Aromatic glycosides from the flower buds of Lonicera japonica

Six new glycosides (1–6) have been isolated from the flower buds of Lonicera japonica. Their structures including the absolute configurations were determined by spectroscopic and chemical methods as ( ? )-2-hydroxy-5-methoxybenzoic acid 2-O-β-d-(6-O-benzoyl)-glucopyranoside (1), ( ? )-4-hydroxy-3,5-dimethoxybenzoic acid 4-O-β-d-(6-O-benzoyl)-glucopyranoside (2), ( ? )-(E)-3,5-dimethoxyphenylpropenoic acid 4-O-β-d-(6-O-benzoyl)-glucopyranoside (3), ( ? )-(7S,8R)-(4-hydroxyphenylglycerol 9-O-β-d-[6-O-(E)-4-hydroxy-3,5-dimethoxyphenylpropenoyl]-glucopyranoside (4), ( ? )-(7S,8R)-(4-hydroxy-3-methoxyphenylglycerol 9-O-β-d-[6-O-(E)-4-hydroxy-3,5-dimethoxyphenylpropenoyl]-glucopyranoside (5), and ( ? )-4-hydroxy-3-methoxyphenol β-d-{6-O-[4-O-(7S,8R)-(4-hydroxy-3-methoxyphenylglycerol-8-yl)-3-methoxybenzoyl]}-glucopyranoside (6), respectively.     

Two new compounds from Aconitum tanguticum

A phytochemical investigation on the whole plant of Aconitum tanguticum (Ranunculaceae) resulted in the isolation and characterization of two new phenylpropanoid glycosides (1 and 2). Their structures were elucidated as 4-hydroxyphenethoxy-8-O-β-d-[6-O-(4-O-β-d-glucopyranosyl)-sinapoyl]-glucopyranoside (1) and 3,4-dimethoxy-trans-cinnamic acid-9-O-β-d-allopyranoside (2) on the basis of spectroscopic data (1D NMR, 2D NMR, and MS) and comparison with the literature data.     

Chemical constituents of Euonymus fortunei

A new flavonol glycoside, kaempferol-3-O-β-d-(2-O-E-p-coumaroyl)-glucopyranosyl-7-O-α-l-rhamnopyranoside (1), along with eleven known compounds including five flavonol glycosides (2–6), one phenolic glycoside (7), two megastigmane glycosides (8 and 9), two triterpenoids (10 and 11) and one alditol (12), was isolated from the aerial parts of Euonymus fortunei. Their structures were determined on the basis of spectroscopic analysis and chemical evidence. Compounds 2–4, 7, 8, and 10–12 were evaluated their antimicrobial activities against Ureaplasma urealyticumin vitro, but all tested compounds have no useful activities against Ureaplasma urealyticum.     

New furostanol glycosides from the rhizomes of Dioscorea futschauensis R. Kunth

Two new furostanol glycosides, 26-O-β-D-glucopyranosyl-3β,26-dihydroxy-23(S)-methoxyl-25(R)-furosta-5,20(22)-dien-3-O-α-L-rhamnopyranosyl(1→2)-[β-D-glucopyranosyl(1→3)]-β-D-glucopyranoside (dioscoreside E, 1) and 26-O-β-D-glucopyranosyl-3β,26-dihydroxy-25(R)-furosta-5,20(22)-dien-3-O-α-L-rhamnopyranosyl(1→2)-[β-D-glucopyranosyl (1→3)]-β-D-glucopyranoside (prtotogracillin, 2), together with 11 known furostanol glycosides were isolated from the rhizomes of Dioscorea futshauensis R. Kunth. Their structures were elucidated on the basis of spectroscopic analysis (NMR and FABMS). Their anti-fungal activity against the plant pathogenic fungus Pyricularia oryzae and cytotoxic activity on K562 cancer cell line were evaluated in vitro.     

Pregnane glycosides from Dracaena cochinchinensis

Two new pregnane glycosides, named dracaenoside C and D, were isolated from the fresh stems of Dracaena cochinchinensis. Their structures were established as 3β,14α-dihydroxypregna-5,16(17)-diene-20-one?3-O-α-L-rhamnopyranosyl(1→2)[α-L-rhamnopyranosyl(1→4)]-β-D-glucopyranoside (1) and 3β,14α-dihydroxypregna-5,16(17)-diene-20-one?3-O-α-L-rhamnopyranosyl(1→2)[β-D-glucopyranosyl(1→3)]-β-D-glucopyranoside (2) by means of 2D NMR spectral and chemical methods.     

A new meta-homoisoflavane from the fresh stems of dracaena cochinchinensis

A new meta-homoisoflavane, 10,11-dihydroxydracaenone C (1), together with 7,4′-dihydroxyflavone (2), 7,4′-dihydroxyflavane (3), 4,4′-dihydroxy-2-methoxychalcone (4), 4,4′-dihydroxy-2-methoxydihydrochalcone (5), 7,4′-dihydrohomoisoflavanone (6), 7,4′-homoisoflavane (7), lophenol (8), β-sitosterol (9), stigma-5, 22-diene-3-ol (10), 1-(4′-O-β-d-glucopyranosyl)benzyl-ethan-2-ol (11), 3,4-dihydoxy-1-allylbenezene-4-O-α-l-rhamnopyranosyl-(1 → 6)-O-β-d-glucopyranoside (12), 1-hydroxy-3,4,5-trimethoxybenzene-1-O-α-l-apiopyranosyl-(1 → 6)-O-β-d-glucopyranoside (13), and tachioside (14) have been isolated from the fresh stems of Dracaena cochinchinensis. Their structures have been established by spectroscopic analysis, especially by 2D NMR. This is the first time compounds 11, 13, 14 have been isolated from Dracaena.     

New lignan glycosides from Cupressus duclouxian (Cupessaceae)

From the branches and leaves of Cupressus duclouxiana two new lignan glycosides named cupressoside A (1) and cupressoside B (2), together with matairesinoside (3), dihydrodehydrodiconiferyl alcohol (4), dihydrodehydrodiconiferyl alcohol-9-O-α-l-rhamnopyranoside (5), dihydrodehydrodiconiferyl alcohol-4-O-α-l-rhamnopyranoside (6), ( ? )-isolariciresinol (7) and ( ? )-isolariciresinol-9-O-β-d-xylopyranoside (8), were isolated. The structures of these compounds were determined on the basis of their HR-FAB-MS, IR, UV, ¹H and ¹³C NMR (DEPT), and 2D NMR (HMQC, HMBC, COSY, NOESY) spectral data.