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  • Correction to: Two New Pairs of Epimeric Pyrrolizidine Alkaloids from Liparis nervosa
    Chem. Nat. Compd. (IF 0.567) Pub Date : 2019-11-19
    Lin Chen, Jing Li, Shuai Huang, Xianli Zhou

    There is an error in the association of the authors with their affiliations. The correct author names and affiliations are: Lin Chen,1,2 Jing Li,2 Shuai Huang,1 and Xianli Zhou1*

    更新日期:2019-11-19
  • Two New Xanthones from Comastoma pulmonarium and Their Anti-Tobacco Mosaic Virus Activity
    Chem. Nat. Compd. (IF 0.567) Pub Date : 2019-11-18
    Qiu-Fen Hu, Xiao-Long Wang, Wan-Li Zeng, Jin Wang, Yong Xu, Hai-Tao Huang, Jing Li, Xin Liu, Guang-Yu Yang, Xue-Mei Li, Cheng-Ming Zhang, Gang-Peng Li

    Two new xanthones (1 and 2), together with three known xanthones (3–5), were isolated from the whole plants of Comastoma pulmonarium. Their structures were elucidated by spectroscopic methods, including extensive 1D and 2D NMR techniques. Compounds 1 and 2 were also evaluated for their anti-tobacco mosaic virus (anti-TMV) activity. The results showed that compounds 1 and 2 showed high anti-TMV activity with inhibition rates of 42.8% and 52.4%, respectively. These rates are higher than that of positive control.

    更新日期:2019-11-18
  • Two New Chromone Derivatives from Cassia leschenaultiana and Their Anti-Tobacco Mosaic Virus Activity
    Chem. Nat. Compd. (IF 0.567) Pub Date : 2019-11-18
    Wei-Guang Wang, Jin Wang, Yong Xu, Hai-Tao Huang, Wan-Li Zeng, Jing Li, Wei-Song Kong, Xin Liu, Gao Qian, Guang-Yu Yang, Qiu-Fen Hu, Yin-Ke Li

    Two new compounds (1 and 2), together with three known chromone derivatives (3–5), were isolated from Cassia leschenaultiana. Their structures were elucidated by spectroscopic methods, including extensive 1D and 2D NMR techniques. Compounds 1 and 2 were evaluated for their anti-tobacco mosaic virus (anti-TMV) activity. The results showed that compounds 1 and 2 showed potential anti-TMV activities with inhibition rates of 35.6% and 38.7% at the concentration of 20 μM, respectively. These rates are higher than that of the positive control.

    更新日期:2019-11-18
  • Synthesis and Biological Activities of Tyrosol Phenolic Acid Ester Derivatives
    Chem. Nat. Compd. (IF 0.567) Pub Date : 2019-11-18
    Hao Zang, Peng Shen, Qian Xu, Luyun Zhang, Guangqing Xia, Jiaming Sun, Junyi Zhu, Xiaohong Yang

    Sixteen tyrosol derivatives were synthesized and characterized by NMR and HR-MS. The antioxidant activity of those compounds was evaluated using four different assays. The results showed that some target compounds displayed better antioxidant activity than L-ascorbic acid and Trolox. Five target compounds exhibited more potent α-glucosidase inhibition activity (18.1–56.7 μM) than acarbose (60.9 μM). Eight target compounds showed some anticholinesterase activities.

    更新日期:2019-11-18
  • New C , O -Glycosylflavones from Melandrium divaricatum
    Chem. Nat. Compd. (IF 0.567) Pub Date : 2019-11-18
    D. N. Olennikov, N. K. Chirikova

    The aerial part of Melandrium divaricatum Fenzl (Caryophyllaceae) afforded 11 glycosylflavones including two new compounds that were characterized using UV, IR, and NMR spectroscopy and mass spectrometry as apigenin-6-C-(2″ -O-α-L-rhamnopyranosyl)-β-D-glucopyranoside-7-O-(6″″ -O-feruloyl)-β-Dglucopyranoside (divarioside A, 1) and apigenin-6-C-(2″-O-D-glucopyranosyl)- β-D-glucopyranoside-7-O-(6″″-O-feruloyl)- β-D-glucopyranoside (divarioside B, 2).

    更新日期:2019-11-18
  • A New Lignanamide Derivative and Bioactive Constituents of Lycium chinense
    Chem. Nat. Compd. (IF 0.567) Pub Date : 2019-11-16
    Hui-Chu Huang, Li-Chai Chen, Tsung-Hsien Chang, Tong-Fei Zhu, Chun-Lin Chen, Ming-Jen Cheng, Jih-Jung Chen

    A new lignanamide derivative, lycichinenamide (1), has been isolated from the root barks of Lycium chinense together with nine known compounds, lyciumamide H (2), 5,2′-dihydroxy-6,7,8,6′-tetramethoxyflavone (3), 7α,8β-3′-O-methylcedrusin (4), smiglabrol (5), trans-N-caffeoyltyramine (6), vanillic acid (7), syringic acid (8), 2,6-dimethoxy-1,4-benzoquinone (9), and 1,5-dihydroxy-2-isoprenyl-3-methoxyxanthone (10). The structure of the new compound 1 was determined through spectroscopic and MS analyses. Among the isolates, lycichinenamide (1), lyciumamide H (2), smiglabrol (5), and trans-N-caffeoyltyramine (6) showed potent inhibition with IC50 values of 18.5 ± 2.1, 21.8 ± 1.8, 12.4 ± 0.3, and 24.6 ± 2.0 μM, respectively, against LPS-induced NO generation. In addition, 1,5-dihydroxy-2-isoprenyl-3-methoxyxanthone (10) exhibited anti-Dengue virus activity with IC50 value of 22.4 ± 1.6 μM against Dengue virus serotype 2 strain PL046.

    更新日期:2019-11-17
  • A New Cycloartane-Type Triterpenoid from Polygonum bistorta
    Chem. Nat. Compd. (IF 0.567) Pub Date : 2019-11-14
    Manoharan Karuppiah Pillai, Benny Tan Kwong Huat, Daiwen Yang

    A new cycloartane-type triterpenoid, 24,31-epoxy-24-ethylcycloartan-3α-ol (1), was isolated from the rhizomes of Polygonum bistorta. The structure of 1 was elucidated using a combination of 1D and 2D NMR spectroscopic techniques and HR-EI-MS analysis.

    更新日期:2019-11-14
  • Synthesis of β -Dihydroagarofuran Derivatives and Preliminary Research on Their Insecticidal Activity
    Chem. Nat. Compd. (IF 0.567) Pub Date : 2019-11-14
    Xin Xi, Jielu Wei, Ximei Zhao, Feng Zhu, Zhan Hu, Wenjun Wu, Jiwen Zhang

    Eighteen new β-dihydroagarofuran derivatives were designed and synthesized using 1β,2β,4α,6α,8β,9α,12-heptahydroxy-β-dihydroagarofuran as starting material, and the structures of all target compounds were confirmed, mainly from 1H NMR and 13C NMR spectral data. Insecticidal activities of these β-dihydroagarofuran derivatives were assayed against sixth-instar larvae of Mythimna separata moths. Results indicated that some of the β-dihydroagarofuran derivatives possessed insecticidal activity.

    更新日期:2019-11-14
  • Essential Oil and Lipids from Leaves of Ferula kuhistanica
    Chem. Nat. Compd. (IF 0.567) Pub Date : 2019-11-14
    D. T. Asilbekova, G. Ozek, T. Ozek, Kh. M. Bobakulov, K. H. C. Baser, Sh. Sh. Sagdullaev

    Essential oil and lipids from leaves of Ferula kuhistanica Korovin (Apiaceae; syn. F. jaeschkeana auct. non Vatke) growing in Uzbekistan were studied for the first time using GC-MS. Essential oil consisted of 51 constituents (99.8% total with mostly α-pinene, 72.9%). Enantioselective analysis of essential-oil constituents found the enantiomeric excesses of (+/–)-α-pinene (61.9/38.1), (+/–)-β-pinene (28.6/71.4), (+/–)-sabinene (13.2/86.8), and (+/–)-limonene (82.7/17.3). Lipids included hexadeca-7Z,10Z,13Z-trienoic acid, confirming that F. kuhistanica belonged to plant group 16:3. Essential oil, chiral constituents, and lipids from leaves of F. kuhistanica were studied for the first time.

    更新日期:2019-11-14
  • New Synthetic Method and Antioxidant Activity of Betulin Diformate and Allobetulin Formate
    Chem. Nat. Compd. (IF 0.567) Pub Date : 2019-11-11
    Salah Arrous, Imene Boudebouz, I. Parunov, E. Plotnikov, O. Voronova

    A simple and effective method for formylation of betulin using formic acid and 3a,6a-diphenylthioglycoluril is reported. The yield of betulin diformate was 87%. Allobetulin formate (95%) was prepared by reacting betulin diformate with trifluoroacetic acid. The structures of betulin diformate and allobetulin formate were confirmed by IR and NMR spectroscopy. The antioxidant activity of the synthesized compounds was studied.

    更新日期:2019-11-11
  • Two New Flavones from the Seeds of Arctium lappa and Their Bioactivity
    Chem. Nat. Compd. (IF 0.567) Pub Date : 2019-11-11
    Meng-Jie Liang, Liang Deng, Wan-Li Zeng, Qian Gao, Hai-Ying Xiang, Jing Li, Xin Liu, Qi-Li Mi, Shan-Shan Hu, Guang-Yu Yang, Yan-Ping Li, Ya-Dong Guo

    Two new flavones, 8,4′-dimethoxy-6-(2-oxopropyl)-flavone (1) and 8,4′-dimethoxy-6-(3-hydroxypropyl)- flavone (2), were isolated from the seeds of Arctium lappa. Their structures were elucidated by spectroscopic methods, including extensive 1D and 2D NMR techniques. Compounds 1 and 2 were evaluated for their anti-methicillin-resistant Staphylococcus aureus (anti-MRSA) activity. The results showed that compounds 1 and 2 exhibited weak active with diameter of inhibition zone (IZD) 10.8 ± 1.0 and 9.3 ± 0.8 mm, respectively. Compounds 1 and 2 were also tested for antioxidant activity, and they show good antioxidant activity with IC50 values of 3.85 and 3.47 μg/mL, respectively.

    更新日期:2019-11-11
  • A New Alcoholic Compound Isolated from the Leaves of Ginkgo biloba
    Chem. Nat. Compd. (IF 0.567) Pub Date : 2019-11-11
    Penghua Shu, Mengyuan Sun, Haichang Xu, Xue Yang, Haoying Niu, Mingwei Geng, Zhiyu Ju

    A new compound, (S)-1-(4-hydroxyphenyl)-butane-1,4-diol (1), and seven known compounds (2–8) were isolated from the leaves of Ginkgo biloba. The structures of compounds 1–8 were established by spectroscopic analysis and by comparison of the data with those of analogs. Compounds 4, 5, and 7 were isolated from Ginkgo biloba for the first time.

    更新日期:2019-11-11
  • A New Coumarin from Zanthoxylum nitidum
    Chem. Nat. Compd. (IF 0.567) Pub Date : 2019-11-11
    Lan Zhou, Wencui Chen, Wenqian He, Yumei Zhang, Pianchou Gongpan, Qingfei Fan, Qishi Song

    One new coumarin compound, isopranferin (1), along with six known compounds 2–7, were isolated from Zanthoxylum nitidum. Their structures were determined on the basis of spectral data including 1D and 2D NMR and HR-EI-MS. Compounds 2–4, 6, and 7 were isolated from this plant for the first time. The in vitro cytotoxicity of compounds 1–7 to RAW264.7 cells, THP-1 cells, and Caco-2 cells was firstly tested by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) methods.

    更新日期:2019-11-11
  • Conjugates of 9- and 11-Halo-Substituted Cytisines with 1′- N -Methylurocanic Acid
    Chem. Nat. Compd. (IF 0.567) Pub Date : 2019-11-11
    P. R. Petrova, A. V. Koval’skaya, A. N. Lobov, I. P. Tsypysheva

    New (–)-cytisine derivatives were synthesized by conjugating 9- and 11-halo-substituted cytisines with 1′-N-methylurocanic acid using N-hydroxysuccinimide.

    更新日期:2019-11-11
  • Chemical Constituents of the Roots of Lindera chunii
    Chem. Nat. Compd. (IF 0.567) Pub Date : 2019-11-11
    Yuxian Li, Songsong Wen, Hai Yang, Yan Wang, Ying Wu, Zhenliang Sun

    A new sesquiterpenoid dimer, lindenanolide I (1), and two new butanolides, (2E,3R,4S)-2-dodecylinene-3-hydroxy-4-ethoxy-4-methylbutanolide (3) and (2E,3R,4S)-2-tetradecylinene-3-hydroxy-4-ethoxy-4-methylbutanolide (4), together with five known compounds (2, 5–8), were isolated from the roots of Lindera chunii. The structures of these compounds were elucidated on the basis of extensive spectroscopic analysis and by comparison of the data with those of related secondary metabolites. The absolute configuration of 1 was identified by electronic circular dichroism (ECD) analysis. Compounds 5–8 were isolated from this plant for the first time.

    更新日期:2019-11-11
  • A Novel Chromene-Type Compound from the Aerial Part of Sheareria nana
    Chem. Nat. Compd. (IF 0.567) Pub Date : 2019-11-11
    Lin Meng, Maorong Shen, Hongyu Li, Dong Zhang, You-Rong Huang, Shuang Liang, Li Xiao, Yongjie Bi, Dehong Hu

    A novel chromene-type compound, with its trivial name shearene A, was obtained from the EtOH extract of Sheareria nana S. Moore. Its structure was elucidated as 2,2-dihydroxymethyl-2H-1-O-3,7-dihydroxy-6-acetylchromene.

    更新日期:2019-11-11
  • A New Cerebroside from the Roots of Gynura procumbens
    Chem. Nat. Compd. (IF 0.567) Pub Date : 2019-11-11
    Ju-Wu Hu, Jing Wu, Xiong-Hui Li, Bin-Hua Huang, En Yuan, Lei Wu, Guang-Qiang Ma

    A new cerebroside (1), along with three known steroidal compounds, β-sitosterol (2), daucosterol (3), and stigmasterol (4), were isolated from the roots of Gynura procumbens (Lour.) Merr. The structure of 1 was determined to be 1-O-β-D-glucopyranosyl-(2R,6E,9R,12E)2-[(2′R)-2′-hydroxypentacosaneoyl-amino]-6,12-heptadecene-1,9-diol on the basis of chemical and spectroscopic evidence.

    更新日期:2019-11-11
  • A New Pyrrole Compound from Monascus ruber
    Chem. Nat. Compd. (IF 0.567) Pub Date : 2019-11-11
    Ming-Jen Cheng, Ming-Der Wu, Tzong-Huei Lee, Jing-Ru Weng, Jih-Jung Chen

    Phytochemical investigation of the fungus Monascus ruber led to the isolation of one new alkaloid derivative, namely ruberpyrrole (1). The structures were established by extensive spectroscopic characterization and the reported data.

    更新日期:2019-11-11
  • Synthesis of N -Containing Heterocycles Based on α -Amino Acids. 1. 8,9-Dimethoxy-5,6-Dihydro-3-Phenyl-1-Alkylimidazo[5,1- a ]Isoquinolines
    Chem. Nat. Compd. (IF 0.567) Pub Date : 2019-11-11
    D. B. Tukhtaev, A. Sh. Saidov, K. K. Turgunov, V. I. Vinogradova, B. Tashkhodzhaev

    Cyclization of α-benzoylamino-N-[2-(3,4-dimethoxyphenyl)ethyl]alkyl amides by POCl3 was studied. Spectral analyses and an X-ray crystal structure analysis found that the synthesized compounds contained 5,6-dihydroimidazo[5,1-a]isoquinoline cores.

    更新日期:2019-11-11
  • Modified Coumarins. 41. Synthesis of Substituted 6-Thiazolylpsoralens
    Chem. Nat. Compd. (IF 0.567) Pub Date : 2019-11-11
    I. P. Dubovik, M. M. Garazd

    Psoralen structural analogs containing 6-(1,3-thiazolyl-4-yl) substituents on furo[3,2-g]chromen-7-one systems were synthesized using the Macleod cyclization.

    更新日期:2019-11-11
  • Synthesis of Guanidine Derivatives of Methylcytisine
    Chem. Nat. Compd. (IF 0.567) Pub Date : 2019-11-11
    P. R. Petrova, A. V. Koval’skaya, A. N. Lobov, I. P. Tsypysheva

    Guanidine derivatives of the quinolizidine alkaloid methylcytisine were synthesized by converting its 9-amino-derivative into the corresponding thiocarboxamide using phenylisothiocyanate and then into trisubstituted guanidines using HgCl2 in the presence of aromatic amines.

    更新日期:2019-11-11
  • A New Flavone from Flos Sophorae Immaturus Through Microbial Transformation by Nigrospora sphaerica ZMT05
    Chem. Nat. Compd. (IF 0.567) Pub Date : 2019-11-09
    Jiaqing Chen, Xiaoling Zhang, Weilin Li, Tong Li, Weijia Ding, Chunyuan Li

    A new flavone derivative, 3′-(γ,γ-dimethylallyloxy)-5,7-dihydroxy-4′-methoxyflavone (1), was isolated from Flos Sophorae Immaturus through microbial transformation by the fungus Nigrospora sphaerica ZMT05. Its structure was elucidated by comprehensive spectroscopic analyses. This compound showed moderate in vitro antifungal activities against Colletotrichum musae and Penicillium italicum.

    更新日期:2019-11-11
  • Structure Elucidation of a New Lignan Glycoside from Artemisia ordosica
    Chem. Nat. Compd. (IF 0.567) Pub Date : 2019-11-09
    Qing-hu Wang, Jun-hua Gong, Jun-sheng Hao, Yan-hua Xu

    The EtOAc extract of Artemisia ordosica was separated by preparative reversed-phase high performance liquid chromatography and afforded a new lignan glycoside, artemordolignan glycoside A (1). The structure elucidation of the new compound was carried out by 1D (1H and 13C NMR) and 2D NMR (COSY, HSQC, and NOESY) spectral analysis.

    更新日期:2019-11-11
  • Isolation, Chemical Modification, and Anticancer Activity of Major Metabolites of the Lichen Parmotrema mesotropum
    Chem. Nat. Compd. (IF 0.567) Pub Date : 2019-10-11
    Uppuluri Venkata Mallavadhani, Reddy Srilakshmi Tirupathamma, G. Sagarika, Sistla Ramakrishna

    Extensive chromatographic purification of the chloroform–methanol (1:1) extract of the lichen Parmotrema mesotropum led to the isolation of methyl hematommate (1), methyl-2,4-dihydroxy-3,6-dimethylbenzoate (2), orcinol (3), and atranorin (4). The two major metabolites (1 and 2) were subjected to chemical modification and a total of 15 analogues were synthesized. The synthesized analogues and their parent compounds were evaluated for their anticancer potential against a panel of five human cancer cell lines. Among the tested samples, compound 1g showed potent activity against three cancer cell lines, namely DU145 (IC50 20.07 μM), MCF-7 (IC50 20.94 μM), and U87MG (IC50 25.32 μM). This compound can be considered as lead a molecule for further development.

    更新日期:2019-11-04
  • Synthetic Transformations of Higher Terpenoids. 38. * Synthesis of Conjugates Containing β-Carboline and Tricyclic Diterpenoids
    Chem. Nat. Compd. (IF 0.567) Pub Date : 2019-10-11
    M. A. Gromova, Yu. V. Kharitonov, T. V. Rybalova, E. E. Shul’ts

    The synthesis and properties of tricyclic pimaranes containing a C-16 β-carboline are reported. A Pictet–Spengler reaction of methyl 15-oxo-16-formylisopimarate (prepared in situ from the 15-oxo-15,16-dihydroisopimarate) and tryptamine or tryptophan methyl ester in the presence of trifluoroacetic acid formed a mixture of terpenoid 1,2,3,4-tetrahydro-β-carbolines, 3,4-dihydro-β-carbolines, and β-carbolines. Tetrahydro- and dihydro-β-carbolines in CHCl3 were oxidized to the corresponding β-carbolines by treatment in air with basic Al2O3.

    更新日期:2019-11-04
  • Synthesis of Isoflavone–Amino-Acid Conjugates
    Chem. Nat. Compd. (IF 0.567) Pub Date : 2019-10-03
    M. M. Garazd, M. S. Frasinyuk

    Conjugates of natural and synthetic amino acids and 7-hydroxyisoflavone in which the amino-acid residue was bonded to the isoflavone through a hydroxyacetate linker were prepared using the activated ester method.

    更新日期:2019-11-04
  • A New Triterpene and a New Phloroglucinol Derivative from the Aerial Parts of Pogostemon auricularius
    Chem. Nat. Compd. (IF 0.567) Pub Date : 2019-10-03
    Duc Viet Ho, Linh Thuy Thi Tran, Dung Viet Le, Hung Manh Tran, Nhan Trong Le, Anh Tuan Le, Hoai Thi Nguyen, Ain Raal

    A new triterpene, pogostem (1), and a new phloroglucinol derivative, pogostemon D (2), were isolated from the aerial parts of Pogostemon auricularius (L.) Hassk. Their structures were determined from a combination of 1D NMR, 2D NMR, and HR-ESI-MS. Furthermore, pogostem (1) inhibited the proliferation of five human cancer cell lines, KB, SW-480, AGS, Hep-G2, and LU-1, with IC50 values ranging from 45.92 ± 5.65 to 65.83 ± 7.05 μg/mL.

    更新日期:2019-11-04
  • Phytochemical Investigation of Iphiona aucheri. Structural Revision of Donine
    Chem. Nat. Compd. (IF 0.567) Pub Date : 2019-10-03
    Yousef Dashti, Christian Hobson, Fatemeh Mazraati Tajabadi, Hassan Rezadoost

    Investigation of an extract of Iphiona aucheri afforded compounds 1–3. These compounds were identified by detailed spectroscopic and spectrometric analysis, however, a literature search revealed that NMR and mass data similar to those of compound 3 have been reported for donine alkaloid 4. Investigation of the experimental and calculated NMR data of compound 4 revealed that the proposed structure should be revised to 3. This was further confirmed by synthesis of compounds 3 and 4.

    更新日期:2019-11-04
  • Synthesis and Cytotoxicity of A -Azepanodammaradiene
    Chem. Nat. Compd. (IF 0.567) Pub Date : 2019-10-03
    I. E. Smirnova, A. V. Petrova, O. B. Kazakova

    Sequential transformations of dipterocarpol (oximation, first-order Beckmann rearrangement, dehydration, isomerization) synthesized the new dammarane-type triterpenoid A-azepanodammara-20(21),24(25)-diene. Its cytotoxicity was studied in vitro against 60 cell lines of 9 human tumor types. The cytotoxicity against all cancer cell types increased significantly as compared to native dipterocarpol if an azepane fragment was introduced into ring A (percent inhibition from 15.72% to 82.08%). Detailed cytotoxicity studies confirmed the activity against a broad spectrum of human tumor cell lines with a mean (MID) log LC50 of 5.57.

    更新日期:2019-11-04
  • A New Isochromeno[4,3-b]Chromen-7(5 H )-One Derivative and Bioactive Constituents of Filipendula kiraishiensis
    Chem. Nat. Compd. (IF 0.567) Pub Date : 2019-09-16
    Chih-Wun Fang, Li-Chai Chen, Hui-Chu Huang, Tsung-Hsien Chang, Chun-Lin Chen, Ming-Jen Cheng, Jih-Jung Chen

    A new isochromeno[4,3-b]chromen-7(5H)-one derivative, 8-hydroxy-3,10-dimethoxyisochromeno [4,3-b]chromen-7(5H)-one (1), has been isolated from the aerial part of Filipendula kiraishiensis, together with seven known compounds. The structure of the new compound 1 was determined through spectroscopic and MS analyses. Among the isolates, luteolin (2), rutin (3), quercetin (4), and isoquercitrin (5) showed potent inhibition with IC50 values of 24.2 ± 1.2, 18.6 ± 1.3, 10.2 ± 0.5, and 12.2 ± 1.0 μM, respectively, against LPS-induced NO generation. In addition, 8-hydroxy-3,10-dimethoxyisochromeno[4,3-b]chromen-7(5H)-one (1) exhibited anti-Dengue virus activities with IC50 value of 22.4 ± 1.6 μM against Dengue virus serotype 2 strain PL046.

    更新日期:2019-11-04
  • Chemical Constituents of Microalgae Tetraselmis convolutae
    Chem. Nat. Compd. (IF 0.567) Pub Date : 2019-09-16
    Nguyen Thi Minh Hang, Tran Huu Giap, Le Nguyen Thanh, Dang Diem Hong, Ngo Thi Hoai Thu, Chau Van Minh

    The first chemical investigation of the marine microalgae Tetraselmis convolutae is reported. Two phytyl esters, phytyl hexadeca-4,7-10,13-tetraenoate (1) and phytyl palmitate (2), and five other compounds, including phytol (3), hexadeca-4,7-10,13-tetraenoic acid (4), poriferasterol (5), palmitic acid (6), and glycerol (7), were isolated from the extracts of Tetraselmis convolutae. Compound 1 was isolated from nature for the first time, and it showed significant cytotoxic activity against KB, SK-LU-1, MCF7, and HepG2 cancer cell lines with IC50 values in the range of 65.23 ± 6.17–89.81 ± 5.83 μM/mL.

    更新日期:2019-11-04
  • Correction to: Phenolic Compounds from Vernonia anthelmintica Seeds
    Chem. Nat. Compd. (IF 0.567) Pub Date : 2019-09-14
    L. Rakhymbay, A. Turak, Janar Jenis, H. A. Aisa

    The third author’s name and affiliation should read Janar Jenis, Research Center for Medicinal Plants, Al-Farabi Kazakh National University Al-Farabi ave. 71, 050040, Almaty, Republic of Kazakhstan. The corresponding author is H. A. Asia.

    更新日期:2019-11-04
  • Correction to: Chemical Composition and Antimicrobial Properties of Essential Oil Anaphalis triplinervis from Western Himalaya
    Chem. Nat. Compd. (IF 0.567) Pub Date : 2019-09-14
    Rajni Kant Sharma, Harpreet Kaur, Manjeet Singh, Manoj Kumar, Rabia Sharma, G. C. Shah, Pankaj Sharma

    The affiliation of the author Manoj Kumar should read Department of Chemistry, Maharishi Markandeshwar University, Sadopur-Ambala, India.

    更新日期:2019-11-04
  • Correction to: Lipoxygenase and α -Glucosidase Inhibitory Constituents of Phlomis stewartii
    Chem. Nat. Compd. (IF 0.567) Pub Date : 2019-09-14
    Naheed Riaz, Hafiza Mehwish Rafiq, Muhammad Saleem, Bushra Jabeen, Muhammad Ashraf, Ishtiaq Ahmed, Rasool Bakhsh Tareen

    One of the authors listed in the article, Tehreem Tahir, states that she was not part of the research and therefore wants her name removed.

    更新日期:2019-11-04
  • Phytochemical and Biological Studies on Ziziphora bungeana.
    Chem. Nat. Compd. (IF 0.567) Pub Date : 2018-07-03
    Radhakrishnan Srivedavyasasri,Karlygash Zhaparkulova,Zuriyadda Sakipova,Liliya Ibragimova,Samir A Ross

    更新日期:2019-11-01
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