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  1. Article ; Online: Possible pharmaceutical applications can be developed from naturally occurring phenanthroindolizidine and phenanthroquinolizidine alkaloids

    Jia, Xian-hui / Zhao, Huan-xin / Du, Cheng-lin / Tang, Wen-zhao / Wang, Xiao-Jing

    Phytochemistry reviews. 2021 Aug., v. 20, no. 4 p.845-868

    2021  

    Abstract: Naturally occurring phenanthroindolizidine and phenanthroquinolizidine alkaloids (PIAs and PQAs) are two small groups of herbal metabolites sharing a similar pentacyclic structure with a highly oxygenated phenanthrene moiety fused with a saturated or an ... ...

    Abstract Naturally occurring phenanthroindolizidine and phenanthroquinolizidine alkaloids (PIAs and PQAs) are two small groups of herbal metabolites sharing a similar pentacyclic structure with a highly oxygenated phenanthrene moiety fused with a saturated or an unsaturated N-heterocycle (indolizidine/quinolizidine moieties). Natural PIAs and PQAs only could be obtained from finite plant families (such as Asclepiadaceae, Lauraceae and Urticaceae families, etc.). Up to date, more than one hundred natural PIAs, while only nine natural PQAs had been described. PIA and PQA analogues have been applied to the development of potent anticancer agents all along because of their excellent cytotoxic activity. However, in the last two decades, other great biological properties, such as anti-inflammatory and antiviral activities were revealed successively by different pharmacological assays. Especially because of their potent antiviral activity against coronavirus (TGEV, SARS CoV and MHV) and tobacco mosaic virus, PIA and PQA analogues have attracted much pharmaceutical attention again, some of them have been used to present interesting targets for total or semi synthesis, and structure–activity relationship (SAR) study for the development of antiviral agents. In this review, natural PIA and PQA analogues obtained in the last two decades with their herbal origins, key spectroscopic characteristics for structural identification, biological activity with possible SARs and application prospects were systematically summarized. We hope this paper can stimulate further investigations on PIA and PQA analogues as an important source for potential drug discovery.
    Keywords Apocynaceae ; Lauraceae ; Tobacco mosaic virus ; Urticaceae ; antiviral properties ; cytotoxicity ; indolizidines ; metabolites ; moieties ; phenanthrenes ; plant biochemistry ; spectroscopy ; structure-activity relationships
    Language English
    Dates of publication 2021-08
    Size p. 845-868.
    Publishing place Springer Netherlands
    Document type Article ; Online
    Note Review
    ZDB-ID 2065661-0
    ISSN 1572-980X ; 1568-7767
    ISSN (online) 1572-980X
    ISSN 1568-7767
    DOI 10.1007/s11101-020-09723-3
    Database NAL-Catalogue (AGRICOLA)

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  2. Article: Flavanones from the fruit extract of Paulownia fortunei

    Liu, Hui / Jia, Xian-hui / Wang, Hong-cheng / Xiao, Cheng-mei / Du, Cheng-lin / Tang, Wen-zhao

    Phytochemistry letters. 2021 June, v. 43

    2021  

    Abstract: Two new prenylated flavanonols, named as fortunones A (1) and B (2), and one new geranylated flavanone, named as fortunones C (3), were isolated from the fruits of Paulownia fortunei (Seem.) Hemsl. Their structures were elucidated distinctly according to ...

    Abstract Two new prenylated flavanonols, named as fortunones A (1) and B (2), and one new geranylated flavanone, named as fortunones C (3), were isolated from the fruits of Paulownia fortunei (Seem.) Hemsl. Their structures were elucidated distinctly according to their UV, MS, NMR, and CD spectra. Structural modifications on prenyl and geranyl groups in these isolated compounds were uncommon for Paulownia flavanones. Only compounds 1 and 3 showed weak antioxidant effect on human umbilical vein endothelial cells injury induced by H₂O₂.
    Keywords Paulownia fortunei ; antioxidant activity ; flavanones ; fruit extracts
    Language English
    Dates of publication 2021-06
    Size p. 196-199.
    Publishing place Elsevier Ltd
    Document type Article
    Note NAL-AP-2-clean
    ISSN 1874-3900
    DOI 10.1016/j.phytol.2021.04.009
    Database NAL-Catalogue (AGRICOLA)

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  3. Article: Possible pharmaceutical applications can be developed from naturally occurring phenanthroindolizidine and phenanthroquinolizidine alkaloids.

    Jia, Xian-Hui / Zhao, Huan-Xin / Du, Cheng-Lin / Tang, Wen-Zhao / Wang, Xiao-Jing

    Phytochemistry reviews : proceedings of the Phytochemical Society of Europe

    2020  Volume 20, Issue 4, Page(s) 845–868

    Abstract: Naturally occurring phenanthroindolizidine and phenanthroquinolizidine alkaloids (PIAs and PQAs) are two small groups of herbal metabolites sharing a similar pentacyclic structure with a highly oxygenated phenanthrene moiety fused with a saturated or an ... ...

    Abstract Naturally occurring phenanthroindolizidine and phenanthroquinolizidine alkaloids (PIAs and PQAs) are two small groups of herbal metabolites sharing a similar pentacyclic structure with a highly oxygenated phenanthrene moiety fused with a saturated or an unsaturated
    Keywords covid19
    Language English
    Publishing date 2020-09-25
    Publishing country Netherlands
    Document type Journal Article ; Review
    ZDB-ID 2065661-0
    ISSN 1572-980X ; 1568-7767
    ISSN (online) 1572-980X
    ISSN 1568-7767
    DOI 10.1007/s11101-020-09723-3
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Three new C-geranylated flavonoids from Paulownia catalpifolia T. Gong ex D.Y. Hong seeds with their inhibitory effects on xanthine oxidase

    Xiao, Cheng-mei / Jia, Xian-hui / Du, Hong-fang / Zhao, Huan-xin / Du, Cheng-lin / Tang, Wen-zhao / Wang, Xiao-Jing

    Phytochemical Society of Europe Phytochemistry letters. 2020 Apr., v. 36 p.162-165

    2020  

    Abstract: Three new C-geranylated flavonoids named as paucatalinones L (1), M (2), and N (3) were isolated from the seeds of Paulownia catalpifolia T. Gong ex D.Y. Hong. Their structures were determined by means of UV, IR, MS, NMR and CD techniques. Among them, ... ...

    Abstract Three new C-geranylated flavonoids named as paucatalinones L (1), M (2), and N (3) were isolated from the seeds of Paulownia catalpifolia T. Gong ex D.Y. Hong. Their structures were determined by means of UV, IR, MS, NMR and CD techniques. Among them, paucatalinone N (3) was the fifth C-geranylflavone derivative obtained from Paulownia genus, and its geranyl variation was firstly displayed in Paulownia C-geranylated flavonoids. Moreover, Compounds 1 and 3 showed good inhibitory effects on xanthine oxidase.
    Keywords Paulownia ; flavonoids ; nuclear magnetic resonance spectroscopy ; seeds ; xanthine oxidase ; Paulownia catalpifolia T. Gong ex D.Y. Hong ; C-geranylated flavonoids ; Paucatalinones L, M and N
    Language English
    Dates of publication 2020-04
    Size p. 162-165.
    Publishing place Elsevier Ltd
    Document type Article ; Online
    ISSN 1874-3900
    DOI 10.1016/j.phytol.2020.02.002
    Database NAL-Catalogue (AGRICOLA)

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  5. Article: Possible pharmaceutical applications can be developed from naturally occurring phenanthroindolizidine and phenanthroquinolizidine alkaloids

    Jia, Xian-Hui / Zhao, Huan-Xin / Du, Cheng-Lin / Tang, Wen-Zhao / Wang, Xiao-Jing

    Phytochem Rev

    Abstract: Naturally occurring phenanthroindolizidine and phenanthroquinolizidine alkaloids (PIAs and PQAs) are two small groups of herbal metabolites sharing a similar pentacyclic structure with a highly oxygenated phenanthrene moiety fused with a saturated or an ... ...

    Abstract Naturally occurring phenanthroindolizidine and phenanthroquinolizidine alkaloids (PIAs and PQAs) are two small groups of herbal metabolites sharing a similar pentacyclic structure with a highly oxygenated phenanthrene moiety fused with a saturated or an unsaturated N-heterocycle (indolizidine/quinolizidine moieties). Natural PIAs and PQAs only could be obtained from finite plant families (such as Asclepiadaceae, Lauraceae and Urticaceae families, etc.). Up to date, more than one hundred natural PIAs, while only nine natural PQAs had been described. PIA and PQA analogues have been applied to the development of potent anticancer agents all along because of their excellent cytotoxic activity. However, in the last two decades, other great biological properties, such as anti-inflammatory and antiviral activities were revealed successively by different pharmacological assays. Especially because of their potent antiviral activity against coronavirus (TGEV, SARS CoV and MHV) and tobacco mosaic virus, PIA and PQA analogues have attracted much pharmaceutical attention again, some of them have been used to present interesting targets for total or semi synthesis, and structure-activity relationship (SAR) study for the development of antiviral agents. In this review, natural PIA and PQA analogues obtained in the last two decades with their herbal origins, key spectroscopic characteristics for structural identification, biological activity with possible SARs and application prospects were systematically summarized. We hope this paper can stimulate further investigations on PIA and PQA analogues as an important source for potential drug discovery.
    Keywords covid19
    Publisher WHO
    Document type Article
    Note WHO #Covidence: #801732
    Database COVID19

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  6. Article ; Online: New antioxidant C-geranylated flavonoids from the fruit peels of Paulownia catalpifolia T. Gong ex D.Y. Hong

    Wang, Ying-ai / Xue, Jing / Jia, Xian-hui / Du, Cheng-lin / Tang, Wen-zhao / Wang, Xiao-Jing

    Phytochemical Society of Europe Phytochemistry letters. 2017 Sept., v. 21 p.169-173

    2017  

    Abstract: Three new geranylated flavonoids, including two geranylflavones (1, 2) and one geranylflavonol (3), named as paucatalinone C–E, were isolated from the fruit peel of P. catalpifolia T. Gong ex D.Y. Hong. Their structures were determined by means of UV, IR, ...

    Abstract Three new geranylated flavonoids, including two geranylflavones (1, 2) and one geranylflavonol (3), named as paucatalinone C–E, were isolated from the fruit peel of P. catalpifolia T. Gong ex D.Y. Hong. Their structures were determined by means of UV, IR, MS, and NMR techniques. To our known, geranylflavone or geranylflavonol was the first isolation from the genus Paulownia. These isolated geranylated flavonoids displayed good antioxidant effects on DPPH and the senescent human embryonic lung diploid fibroblasts cells (2BS cells) induced by H2O2. The geranyl substituent may be an important factor for the cellular radical-scavenging effect because of its lipophilic character.
    Keywords 2,2-diphenyl-1-picrylhydrazyl ; Paulownia ; antioxidant activity ; diploidy ; fibroblasts ; flavonoids ; fruit peels ; humans ; hydrogen peroxide ; nuclear magnetic resonance spectroscopy ; Paulownia catalpifolia T. gong ex D.Y. hong ; Geranylated flavonoids ; Antioxidant effects ; DPPH ; 2BS cells
    Language English
    Dates of publication 2017-09
    Size p. 169-173.
    Publishing place Elsevier Ltd
    Document type Article ; Online
    ISSN 1874-3900
    DOI 10.1016/j.phytol.2017.06.025
    Database NAL-Catalogue (AGRICOLA)

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  7. Article ; Online: Undescribed C-geranylflavonoids isolated from the fruit peel of Paulownia catalpifolia T. Gong ex D.Y. Hong with their protection on human umbilical vein endothelial cells injury induced by hydrogen peroxide.

    Wang, Ying-Ai / Guo, Xing / Jia, Xian-Hui / Xue, Jing / Du, Hong-Fang / Du, Cheng-Lin / Tang, Wen-Zhao / Wang, Xiao-Jing / Zhao, Yun-Xue

    Phytochemistry

    2018  Volume 158, Page(s) 126–134

    Abstract: Six undescribed C-geranylated flavonoids, including five C-geranylflavanones named as paucatalinones F - J, one C-geranylflavonol named as paucatalinone K, along with seven known geranylated flavanones, were isolated from the fruit peel of Paulownia ... ...

    Abstract Six undescribed C-geranylated flavonoids, including five C-geranylflavanones named as paucatalinones F - J, one C-geranylflavonol named as paucatalinone K, along with seven known geranylated flavanones, were isolated from the fruit peel of Paulownia catalpifolia T. Gong ex D.Y. Hong. Their structures were elucidated distinctly according to their UV, IR, MS, NMR, and CD data. Among them, two compounds were substituted with unusual modified geranyl groups, namely paucatalinone F with an oxygenated cyclogeranyl substituent and paucatalinone H with a terminal pyranoid geranyl substituent. Furthermore, the protective effects on human umbilical vein endothelial cells (HUVECs) injury induced by H
    MeSH term(s) Apoptosis/drug effects ; Circular Dichroism ; Drug Evaluation, Preclinical/methods ; Flavonoids/chemistry ; Flavonoids/pharmacology ; Fruit/chemistry ; Human Umbilical Vein Endothelial Cells/drug effects ; Humans ; Hydrogen Peroxide/toxicity ; Lamiales/chemistry ; Magnetic Resonance Spectroscopy ; Molecular Structure ; Spectrometry, Mass, Electrospray Ionization ; Spectrophotometry, Ultraviolet
    Chemical Substances Flavonoids ; Hydrogen Peroxide (BBX060AN9V)
    Language English
    Publishing date 2018-12-05
    Publishing country England
    Document type Journal Article
    ZDB-ID 208884-8
    ISSN 1873-3700 ; 0031-9422
    ISSN (online) 1873-3700
    ISSN 0031-9422
    DOI 10.1016/j.phytochem.2018.11.010
    Database MEDical Literature Analysis and Retrieval System OnLINE

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