Chemical constituents of Lindera aggregata and their bioactivities: a review / 中国中药杂志

The medicinal Lindera aggregata(Lindera, Lauraceae) boasts abundant resources, which is widely used in clinical settings. It has been found that the main chemical constituents of this medicinal species are sesquiterpenoids, alkaloids, sesquiterpenoid dimers, flavonoids, and phenolic acids. Some unreported novel structures, including lindenane-type sesquiterpene dimers and trimers, have been discovered from L. aggregata in recent years. The extracts and active components of L. aggregata have anti-tumor, anti-inflammatory, antalgic, liver-protecting, antioxidant, lipid-lowering, and glucose-lowering activities, and their mechanisms of action have been comprehensively investigated. This study summarizes the research on the chemical constituents and bioactivities of L. aggregata over the past decade, which is expected to serve as a reference for the future research and utilization of L. aggregata.

Research progress on chemical constituents and biological activities of Sarcandra glabra / 中国中药杂志

Sarcandra glabra, a medicinal plant in family Chloranthaceae, has been taken as an important raw material for multiple Chinese patent drugs due to its diverse indications. Considering the diversified chemical constituents and rich biological activities of S. glabra, numerous phytochemical and pharmacodynamic investigations were conducted to explore the material basis for its medicinal use. It has been found that its main chemical constituents were sesquiterpenoids, sesquiterpenoid polymers, phenolic acids, coumarins, and flavonoids. As revealed by pharmacological research, it possesses multiple biological activities like anti-inflammation, anti-bacteria, anti-tumor, anti-oxidation, and neuroprotection. Some unreported novel structures, including polymers of lindenane sesquiterpenes and monoterpenes, sesquiterpene trimers, and adducts of flavonoids and monoterpenes, have been identified from S. glabra in recent years. Moreover, biological studies relating to its anti-tumor, anti-inflammatory, and anti-oxidant activities have been deepened. This paper reviewed the chemical constituents and bioactivities of S. glabra explored over the past ten years, so as to provide a scientific basis for further development and utilization of this plant.

Research progress on chemical constituents from Chloranthus plants and their biological activities / 中国中药杂志

The genus Chloranthus has 13 species and 5 varieties in China, which can be found in the southwest and northeast regions. Phytochemical studies on Chloranthus plants have reported a large amount of terpenoids, such as diterpenoids, sesquiterpenoids, and sesquiterpenoid dimers. Their anti-inflammation, anti-tumor, antifungal, antivirus, and neuroprotection activities have been confirmed by previous pharmacological research. Herein, research on the chemical constituents from Chloranthus plants and their biological activities over the five years was summarized to provide scientific basis for the further development and utilization of Chloranthus plants.

Chemical constituents of sesquiterpenes from Chloranthus multistachys / 中国中药杂志

With repeated silica gel, octadecyl silica(ODS), and Sephadex LH-20 column chromatography, normal-phase and reverse-phase high performance liquid chromatography(HPLC), etc., a pair of new enantiomers and 5 known compounds were separated from the 95% ethanol extract of Chloranthus multistachys. These compounds were identified by the nuclear magnetic resonance spectroscopy(including 1 D-NMR and 2 D-NMR), single-crystal X-ray diffraction, circular dichroism(CD) spectroscopy, mass spectrometry(MS), and some other methods as(1R,4R,5R,8S,10R)-chloraeudolide H(1 a),(1S,4S,5S,8R,10S)-chloraeudolide H(1 b), hydroxyisogermafurenolide(2), 4α-hydroxy-5α,8β(H)-eudesm-7(11)-en-8,12-olide(3), chloraniolide A(4), chlorantene D(5), 4α,8β-dihydroxy-5α(H)-eudesm-7(11)-en-8,12-olide(6). Compounds 1 a and 1 b are a pair of new eudesmane-type sesquiterpene enantiomers, and compounds 2-4 were isolated from C. multistachys for the first time.

A new cembranoid diterpene from Olibanum / 中国中药杂志

Five compounds were isolated from the alcohol extract of Olibanum by MCI, silica gel, ODS, and Sephadex LH-20 column chromatographies and preparative high-performance liquid chromatography(HPLC). On the basis of spectral data and literature data, the compounds were identified as:(1S,3R,4S,7R,11S,12R)-1:12,4:7-diepoxisonane-8(19)-ene-3,11-diol(1), boscartin A(2),(+)-resinolin(3),(+)-5-hydroxy-3,4-dimethyl-5-pentylfuran-2(5H)-one(4), and acerogenin A(5). Compound 1 is a new compound, and compounds 3-5 were isolated from Olibanum for the first time. The structure of compound 1 was determined by spectroscopic analysis and single-crystal X-ray diffraction. Compounds 1 and 2 were tested for PC12 neurotoxicity, and the results showed that they were both safe compounds.

A new sesquiterpene from Chloranthus henryi / 中国中药杂志

Eight sesquiterpenes were isolated and purified from the ethanol extract of Chloranthus henryi by column chromatographies over silica gel, ODS and Sephadex LH-20,and preparative HPLC. Their chemical structures were established by spectral data and physiochemical properties as(1S,6S,8S,10R)-8-ethoxy-10-methoxychlomultin C(1),tianmushanol(2),multistalide A(3),myrrhterpenoid N(4),1α,9α-dihydroxy-8,12-expoxy-eudesma-4,7,11-trien-6-one(5),4β,10α-aromadendranediol(6),oplopanone(7),10α-hydroxycadinan-4-en-3-one(8). Among them, compound(1) was a new compound, and compounds 2-8 were isolated from Chloranthus henryi for the first time.

A pair of enantiomeric sesquiterpenoids with neuroprotective effects from Chloranthus henryi / 药学学报

An ethanol extract of Chloranthus henryi (Chloranthaceae) was subjected to various chromatographic procedures including silica gel column chromatography, MCI column chromatography, Sephadex LH-20 column chromatography, and preparative HPLC. Five purified sesquiterpenes analyzed by spectroscopic analyses (MS, IR, NMR) and single crystal X-ray diffraction were elucidated as (1S,6S,8R)-8-ethoxychlomultin C (1a), (1R,6R,8S)-8-ethoxychlomultin C (1b), (+)-phaeocaulin D (2), atractylenolide Ⅰ (3), and 8-β-ethoxyasterolid (4). Compounds 1a and 1b were a new pair of sesquiterpene enantiomers and compounds 2-4 were isolated from this plant for the first time. Compounds 1a, 1b, 2 and 3 increased cell viability in H2O2-treated PC12 cells from (43.41 ± 1.59) % to (61.71 ± 7.56) %, (66.05 ± 5.61) %, (74.34 ± 3.32) % and (69.58 ± 5.02) % at 10 μmol·L-1, respectively.

Study on chemical constituents of flavonoids in Turpinia arguta / 药学学报

Fifteen flavonoids were isolated and identified by macroporous resin column chromatography, polyamide column chromatography, silica gel column chromatography, ODS column chromatography and preparative liquid chromatography from the ethanol extract Turpinia arguta. Their structures of these flavonoids were identified by NMR and mass spectrometry as argutoside F (1), luteolin-7-O-α-L-rhamanopyranosyl-(1→2)-α-L-rhamnopyranosyl-(1→6)-β-D-glucopyranoside (2), nuezhenoside (3), acacetin-7-O-α-L-rhamnopyranosyl-(1→2)-α-L-rhamnopyranosyl-(1→6)-β-D-glucopyranoside (4), apigenin (5), quercetin (6), quercetin-3-O-α-L-rhamnopyranosyl-(1→6)-β-D-glucopyranoside (7), rhoifolin (8), luteolin-7-O-α-L-rhamanopyranosyl-(1→2)-β-D-glucopyranoside (9), acacetin-7-O-α-L-rhamnopyranosyl-(1→2)-β-D-glucopyranoside (10), luteolin-7-O-β-D-glucopyranoside (11), luteolin (12), neodiosmin (13), apigenin-7-O-rutinoside (14), and quercetin-3-O-α-L-arabinopyranoside (15). Compound 1 is new, whereas compound 2, 7, 9, 13-15 were obtained from this plant for the first time.

Research progress on chemical constituents and biological activities from Turpinia species / 中国中药杂志

Turpinia species have been used as local Chinese medicines. It has been widely concerned about their antibacterial and anti-inflammatory effects. Modern studies showed that the chemical constituents of Turpina species include flavonoids, triterpenoids, megastigans and phenoli acids. Its pharmacological research mainly focused on antibacterial, anti-inflammatory, antioxidant, analgesic, and immuneregulation effect. In this paper, the chemical compositions and pharmacological activities of Turpinia species were summarized, in order to provide scientific basis for the further development and utilization of Turpinia species.

Chemical constituents from fruits of Vitex trifolia var. simplicifolia / 中国中药杂志

The present study is to investigate the chemical constituents from the dried ripe fruits of Vitex trifolia var. simplicifolia The compounds were isolated by using a variety of chromatographic methods including silicagel, ODS, Sephadex LH-20, reversed-phase HPLC, and other methods. Their structures were identified by NMR, and MS date. As a result, 18 compounds were isolated and identified as ent-2-oxo15,16,19-trihydroxypimar-8(14)-ene (1), chrysosplenol D (2), casticin (3), luteolin (4), eupatrin (5), apigenin (6), 5,4'-dihydroxy-3,6,7-trimethoxyflavone (7), luteolin-4'--glucoside (8), hypolaetin-7---D-glucopyranoside (9), swertisin (10), agestricin D (11), 5,3'-dihydroxy-6,7,4'-trimethoxyflavanone (12), tomentic acid (13), 2α,3,23-trihydroxyolean-12-en-28-oic acid (14), 3'-acetoxy-4'-angeloyloxy-3',4'-dihydroseselin (15), dihydrodehydrodiconiferyl alcohol (16), 3,5'-dimethoxy-4',7-epoxy-8,3'-neolignane-5,9,9'-triol (17) and salicifoliol (18). Among them, compounds 1, 2, 5-15, 17 and 18 were obtained from V. trifolia var. simplicifolia Cham for the first time and compounds 1, 5, 7-11, 15, 17 and 18 were isolated from thegenus Vitex for the first time.

Sesquiterpenes with anti-metastasis breast cancer activity from Chloranthus henryi / 中国中药杂志

To study sesquiterpenes with anti-metastasis breast cancer activity from Chloranthus henryi, ten sesquiterpenes ,zedoarofuran (1), chlorajapolide D (2), 4β, 8β-dihydroxy-5α(H)-eudesm-7(11)-en-8, 12-olide (3), curcolonol (4), lasianthuslactone A (5), chlomultin C (6), (1E,4Z)-8-hydroxy-6-oxogermacra-1(10), 4, 7(11) -trieno-12, 8-lactone (7), shizukanolide E (8) , shizukanolide F (9) , 9α-hydroxycurcolonol (10), and five bis-sesquiterpenes, shizukaol B (11), shizukaol C (12) , cycloshizukaol A (13) , sarcandrolide B (14) , henriol A(15), were isolated by using different kinds of column chromatography methods from the ethyl acetate part of Ch.henryi and their structures were identified based on spectroscopic methods. Compounds 2, 8, 9, and 10 were obtained from the genus Chloranthus for the first time. Compounds 2, 5, 8-10, 12,and 14 were obtained from this plant for the first time. Some isolated compounds were subjected to evaluate the anti-metastasis breast cancer activity by using pharmacological methods, and only compounds 4, 11, and 12 were potent active.

Study on chemical constituents from Chloranthus multistachys / 中国中药杂志

To investigate the chemical constituents from the shoots of Chloranthus multistachys.All compounds wereisolated by using a combination of various chromatographic techniques including silica gel, ODS, Sephadex LH-20, reversed-phase HPLC, and other methods.Their structures were elucidated by the nuclear magnetic resonance (NMR), mass spectrometry, and other modernspectroscopies.As a result, 19 compounds were isolated from the shoots of C.multistachys and identified as zederoneepoxide(1), chlomultin C(2), curcolonol(3), sarcaglaboside A(4), zedoarofuran(5), (1E,4Z)-8-hydroxy-6-oxogermacra-1(10), 4,7(11)-trieno-12,8-lactone(6), chloranoside A(7), istanbulin A(8), (8α)-6,8-dihydroxycadina-7(11),10(15)-dien-12-oicacid-γ-lactone(9), codonolactone(10), lasianthuslactone A(11), 12,15-epoxy-5αH,9βH-labda-8(17),13-dien-19-oicacid(12), 12R,15-dihydroxylabda-8(17),13E-dien-19-oicacid(13), N-transcinnamoyltyramine(14), trans-N-p-coumaroyltyramine(15), dibutyl phthalate (16), flavokawain A(17), bergenin(18), and enedione(19).Compounds 1, 2, 4, 7-10, 12-19 were isolated from C.multistachys for the first time and compounds 14-19 were obtained from the genus Chloranthus for the first time.

Pharmacognostical study on four origin plants of folk medicine Sikuaiwa / 中国中药杂志

In order to develop characteristic folk medicine resources in Jiangxi, a pharmacognostical study was systematically performed for four different origin plants of Sikuaiwa, the result of study provides the microscopic features of powder and tissue of the crude drug. The research provided reference for the identification of Sikuaiwa, as well as a theoretical basis for the further development and the formulation of quality standards.

Diterpenoids from bulbus of Fritillaria monanth / 药学学报

To study the chemical constituents of Fritillaria monanth Migo, the constituents were separated and purified by column chromatography on silica gel, and the structures were identified by NMR, MS spectral data. Six compounds were isolated and identified as ent-kauran-15-en-17-ol (I), entkauran-15-en-3alpha, 17-diol (II), fritillaziebinol (III), ent-kauran-16a, 17-diol (IV), ent-kauran-3alpha, 16alpha,17-triol (V), ent-16,17-epoxy-kauran-3alpha-ol (VI). All the compounds were isolated from this plant for the first time, and VI is named as ent-16,17-epoxy-kauran-3alpha-ol, which is a new compound.

Chemical constituents from root of Lasianthus acuminatissimus I / 中国中药杂志

<p><b>OBJECTIVE</b>To investigate the chemical constituents from the root of Lasianthus acuminatissimus of Rubiaceae.</p><p><b>METHOD</b>Normal, reverse phase silica gel, macroporous resin column and HPLC chromatography were used for isolation. Spectroscopic methods (13C-NMR, 1H-NMR, DEPT, EI-MS) were used for identification.</p><p><b>RESULT</b>Six compounds were isolated and elucidated as isoscopletin(I), isoscopletin-6-O-beta-D-glucopyranoside (II), beta configuration of Mudanoside-A (Ill), asperuloside (IV), (-)-pinoresinol 4-O-beta-D-glucopyranoside (V), daucosterol (VI).</p><p><b>CONCLUSION</b>These compounds were obtained from this plant for the first time.</p>

A new sesquiterpene lactone from the roots of Lasianthus acuminatissimus / 药学学报

<p><b>AIM</b>To study the active constituents for the treatment of rheumatoid arthritis from the ethyl acetate extracts of the roots of Lasianthus acuminatissimus Merr.</p><p><b>METHODS</b>Various chromatographic techniques were used to separate and purify the constituents. Their structures were established on the basis of 1D, 2D NMR and HRMS spectroscopic analyses and their preliminary evaluation of anti-inflammation effect on the release of beta-glucuronidase was carried out.</p><p><b>RESULTS</b>Eight compounds were isolated and identified as lasianthuslactone A (1), codonolactone (2), 2,5-dimethoxy-1, 4-benzoquinone (3), uncargenin A (4), nonadecyl alcohol (5), 13-docosenoic acid (6), tetracosanoic acid (7) and beta-sitosterol (8). Compound 3 showed a significant inhibitory effect on release of beta-glucuronidase rat polymorphous nuclear leukocytes activated by platelet activating factor (PAF).</p><p><b>CONCLUSION</b>Compound 1 is a new one, the others were isolated from the plant for the first time and 3 is one of active anti-inflammation compound in the plant.</p>

Studies on the chemical constituents from the roots of Chloranthus henryi / 药学学报

<p><b>AIM</b>To study the chemical constituents of the roots of Chloranthus henryi.</p><p><b>METHODS</b>The constituents of Chloranthus henryi were separated with various chromatographic techniques. structures were elucidated by physico-chemical properties and spectral data.</p><p><b>RESULTS</b>Eight compounds were isolated from Chloranthus henryi. They were identified as curcolonol (I), zedoarofuran (II), shizukanolide E (III) , skimmin (IV), calucanthoside (V), chloracoumarin (VI), beta-sitosterol (VII), daucosterin (VIII).</p><p><b>CONCLUSION</b>Chloracoumarin (VI) is a new compound and characterized as 6,8-dimethoxy-7-O-[beta-D-apiofunanosyl(l --> 3 )-D-glucopyranosyl]-2H-benzopyran-2-one. Compounds I, II were isolated from Chloranthus henryi for the first time.</p>

Determining the quantity of hypericin in medicinal materials and asepsis seedings of Hypericum perforatum by HPLC / 中国中药杂志

<p><b>OBJECTIVE</b>To establish the method of determining the quantity of hypericin in Hypericum perforatum and determine the quantity of the hypericin in defferent medicinal materials and asepsis seedings which grow in defferent environment.</p><p><b>METHOD</b>The specimen is extracted with methanol--Pyridine (9:1) ultrasound extraction. Chromatographic assay is performed on a hypersily ODS2 (4.6 mm x 150 mm, 5 microm) column. The mobile phase is composed of methanol -1.56% dihydric natrium phosphate hydrogen natrium solution (shift solution's acidity to 2.1 with phosphoric acid)--ethyl acetate (4:1.9:1), velocity of flow is 1 mL x min(-1); column temperature is 35 degrees C; the detection wavelength is 590 nm.</p><p><b>RESULT</b>A satisfactory seperaration between hypericin and impurity. The calibration curve is linear over the range of 0.0524-0.2620 microg for hypericin (r = 0.9998). The average recovery of hypericin is 97.50%.</p><p><b>CONCLUSION</b>The quantity of hypericin in Hypericum perforatum has something to do with the genetic factor, environment factor, growing period and dry means. The method of determining the quantity of hypericin can be regarded as the method of controling the quantity of medicinal materials.</p>