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1. New iridoid glycosides from Viburnum punctatum

Author:
Gao, Yuan; Yang, Wan-Qiu; Yang, Ku; Jiang, Xian-Jun; Li, Xiang-Mei; Wang, Fei
Source:
Phytochemistry letters 2018 v.28 pp. 145-148
ISSN:
1874-3900
Subject:
iridoid glycosides,   etc   ; Viburnum; glucose; moieties; spectral analysis;     Show all 5 Subjects
Abstract:
... Three hitherto unknown valeriana-type iridoid glycosides (1−3) were isolated from Viburnum punctatum, and their structures were elucidated by extensive spectroscopic analysis. The new compounds, designated as viburpunosides A − C (1−3), are characterized by having a mono- or triacylated α-l-rhamnopyranosyl-(1→2)-β-d-glucopyranosyl moiety linked to C-11. This is the second report of an iridoid atta ...
DOI:
10.1016/j.phytol.2018.10.010

2. The polymer iridoid glucosides isolated from Dipsacus asper

Author:
Duan, Xiao-Yan; Ai, Lun-Qiang; Qian, Cheng-Zhen; Zhang, Mei-De; Mei, Ren-Qiang
Source:
Phytochemistry letters 2019 v.33 pp. 17-21
ISSN:
1874-3900
Subject:
iridoid glycosides,   etc   ; Dipsacus; anti-inflammatory activity; glucosides; nuclear magnetic resonance spectroscopy; polymers;     Show all 6 Subjects
Abstract:
... Two new iridoid tetramers with four glucosides, dipsanosides H (1) and I (2), as well as one new bis-iridoid glucosides dipsanosides J (3), along with four known polymer iridoid glycosides dipsanosides A (4) and B (5), pterocephaline (6), triplostoside A (7) were isolated from Dipsacus asper. Their structures were determined by analysis of 1D and 2D NMR data. All of them were found to be inactive ...
DOI:
10.1016/j.phytol.2019.07.001

3. The isolation and structural elucidation of a new iridoid glycoside from Cymbaria dahurica L.

Author:
Bai, Cui-Lan; Wang, Qing-Hu; Xu, Yan-Hua; Han, Jun-Sheng; Bao, Yin-Ping
Source:
Zeitschrift für Naturforschung 2018 v.73 no.6 pp. 377-379
ISSN:
1865-7117
Subject:
iridoid glycosides,   etc   ; ethyl acetate; nuclear magnetic resonance spectroscopy; spectral analysis;     Show all 4 Subjects
Abstract:
... A new iridoid glycoside, namely, cymdahoside A (1), together with two known ones, 2 and 3, were isolated from the EtOAc extract of Cymbaria dahurica. The structure elucidation of 1 was carried out by one-dimensional (1D) NMR (¹H and ¹³C NMR) and 2D NMR (correlation spectroscopy, heteronuclear single-quantum coherence, heteronuclear multiple-bond correlation and nuclear Overhauser effect spectrosco ...
DOI:
10.1515/znb-2017-0205

4. Phytochemical, cytotoxic and chemotaxonomic study on Ajuga forrestii Diels (Labiatae)

Author:
Chen, Tong; Diao, Qing-Yan; Yu, Hai-Zhou; Jiao, Chun-Li; Ruan, Jian
Source:
Natural product research 2018 v.32 no.8 pp. 977-981
ISSN:
1478-6427
Subject:
iridoid glycosides,   etc   ; Ajuga; chemotaxonomy; cytotoxicity; diterpenoids; phytoecdysteroids; spectroscopy;     Show all 7 Subjects
Abstract:
... A phytochemical investigation of Ajuga forrestii Diels led to the isolation of 14 compounds, including eight neo-clerodane diterpenes (1–8), two phytoecdysteroids (9, 11), one stigmastane sterol (10) and three iridoid glycosides (12–14). The structures of these compounds were identified by spectroscopic methods and a comparison of their data with those reported in the literature. This is the first ...
DOI:
10.1080/14786419.2017.1371161

5. Uncommon fatty acids, Iridoids and other secondary metabolites from the medicinal plant species Ixora cibdela Craib (Rubiaceae)

Author:
Buathong, Raveevatoo; Schindler, Florian; Schinnerl, Johann; Valant-Vetschera, Karin; Bacher, Markus; Potthast, Antje; Rosenau, Thomas; Vajrodaya, Srunya
Source:
Phytochemistry letters 2019 v.33 pp. 77-80
ISSN:
1874-3900
Subject:
iridoid glycosides,   etc   ; Ixora; bark; fatty acids; lignans; medicinal plants; nuclear magnetic resonance spectroscopy; phytochemicals; proanthocyanidins; scopoletin; secondary metabolites;     Show all 11 Subjects
Abstract:
... Phytochemical investigation of methanolic extracts from the so far unstudied plant species Ixora cibdela Craib (Rubiaceae) led to the isolation and identification of an uncommon and novel fatty acid and the related methyl ester named as cibdelin A and cibdelin B. Additionally, the five known iridoid glucosides 11-methylixoside, shanzhiside, mussaenosidic acid, geniposidic acid, and apodanthoside t ...
DOI:
10.1016/j.phytol.2019.07.011

6. Iridoid glucosides from the stems of three bioactive Brazilian Faramea species (Rubiaceae)

Author:
Wolff, Thiago; Valente, Ligia M.M.; Barboza, Rodolfo S.; Berrueta, Luis A.; Gallo, Blanca; Gomes, Mário
Source:
Biochemical systematics and ecology 2019 v.84 pp. 35-36
ISSN:
0305-1978
Subject:
iridoid glycosides,   etc   ; Rubiaceae; chromatography; nuclear magnetic resonance spectroscopy; silica gel; solid phase extraction; stems; tandem mass spectrometry;     Show all 8 Subjects
Abstract:
... In this paper our previous chemical study of the anti-dengue active species Faramea bahiensis, Faramea hyacinthina and Faramea truncata (synonym of Faramea caudata) (Rubiaceae) is complemented by isolating from their stems, through a combination of silica gel and Sephadex LH-20 column chromatography and reversed-phase solid-phase extraction, the known iridoid glucosides monotropein (1), monotropei ...
DOI:
10.1016/j.bse.2019.03.009

7. A syringic acid derivative and two iridoid glycosides from the roots of Stachys geobombycis and their antioxidant properties

Author:
Zhou, Xianli; Huang, Sixin; Wang, Pengcheng; Luo, Qin; Huang, Xiao; Xu, Qin; Qin, Jiangke; Liang, Chengqin; Chen, Xu
Source:
Natural product research 2019 v.33 no.5 pp. 681-686
ISSN:
1478-6427
Subject:
iridoid glycosides,   etc   ; 2,2-diphenyl-1-picrylhydrazyl; Stachys; antioxidant activity; inhibitory concentration 50; nuclear magnetic resonance spectroscopy; roots; syringic acid;     Show all 8 Subjects
Abstract:
... A new derivative of syringic acid, stageobester A (1) and two iridoid glycosides which including a new one, stageoboside A (2), were isolated from the roots of Stachys geobombycis. Their structures were elucidated on the basis of spectroscopic methods, including extensive NMR and MS spectra. In addition, all the isolates were tested for their antioxidant capacity. Compounds 1 and 2 showed moderate ...
DOI:
10.1080/14786419.2017.1405413

8. Reassessment of Melittis melissophyllum L. subsp. melissophyllum iridoidic fraction

Author:
Venditti, A.; Frezza, C.; Guarcini, L.; Maggi, F.; Bianco, A.; Serafini, M.
Source:
Natural product research 2016 v.30 no.2 pp. 218-222
ISSN:
1478-6427
Subject:
iridoid glycosides,   etc   ; Lamiaceae; allose; flavonoids;     Show all 4 Subjects
Abstract:
... The analysis of the polar fraction of Melittis melissophyllum L. subsp. melissophyllum led to the identification of several iridoid glycosides: monomelittoside (1), melittoside (2), harpagide (3), acetyl-harpagide (4) and ajugoside (5). Compounds 3 and 4 are considered marker compounds for the genus and, as well as compounds 1 , 2 and 5 , were already evidenced in a previous study on the nominal s ...
DOI:
10.1080/14786419.2015.1040792

9. UPLC–MS profiling, identification of major peaks and comparison of Harpagophytum procumbens extracts from different locations

Author:
Steenkamp, P.A.; Steenkamp, L.H.
Source:
South African journal of botany 2019 v.124 pp. 138-143
ISSN:
0254-6299
Subject:
iridoid glycosides,   etc   ; Harpagophytum procumbens; claws; isomers; mass spectrometry; plant extracts; rapid methods; reference standards; spectral analysis; tubers; ultra-performance liquid chromatography; verbascoside;     Show all 12 Subjects
Abstract:
... Organic extracts (methanol:acetonitrile (1:1 v/v)) of the dried and grounded secondary tubers of Devil's Claw, Harpagophytum procumbens (Burch.) DC. ex Meisn., produced extracts rich in iridoid glucosides. An UPLC-MS profiling method was developed that could separate the major compounds found in the extracts and allowed for high resolution mass spectral evaluation of the compounds detected. By usi ...
DOI:
10.1016/j.sajb.2019.04.032

10. Modeling of the static batch desorption and dynamic column elution of geniposidic acid from a porous anion-exchanger

Author:
Qian, Wenbin; Wang, Juan; Ding, Hanjing; Xie, Wenjing
Source:
Journal of chromatography 2019 v.1594 pp. 1-12
ISSN:
0021-9673
Subject:
iridoid glycosides,   etc   ; chromatography; desorption; diffusivity; dyes; equations; finite element analysis; hydrochloric acid; ion exchange; mass transfer; models; motivation; purification methods; recycling; wastewater;     Show all 15 Subjects
Abstract:
... For several decades, plenty of iridoid glycosides including geniposide (GS) and geniposidic acid (GSA) in the gardenia yellow pigment extraction waste water was not recovered effectively. This study is aimed to supply an efficient GSA recycling route. In this study, a model incorporating a superficial desorption rate constant was applied to the batch GSA desorption process, i.e., recycling, for ve ...
DOI:
10.1016/j.chroma.2019.01.060

11. UPLC–MS profiling, identification of major peaks and comparison of HARPAGOPHYTUM PROCUMBENS extracts from different locations

Author:
STEENKAMP, P.A.; STEENKAMP, L.H.
Source:
South African journal of botany 2019
ISSN:
0254-6299
Subject:
iridoid glycosides,   etc   ; Harpagophytum procumbens; acetonitrile; isomers; mass spectrometry; methanol; plant extracts; rapid methods; reference standards; spectral analysis; tubers; ultra-performance liquid chromatography; verbascoside;     Show all 13 Subjects
Abstract:
... Organic extracts (methanol: acetonitrile (1:1 v/v)) of the dried and grounded secondary tubers of Devil's Claw, Harpagophytum procumbens (Burch.) DC. ex Meisn.), produced extracts rich in iridoid glucosides. An UPLC-MS profiling method was developed that could separate the major compounds found in the extracts and allowed for high resolution mass spectral evaluation of the compounds detected. By u ...
DOI:
10.1016/j.sajb.2019.04.032

12. Chemical constituents of Oldenlandia pinifolia and their antiproliferative activities

Author:
Hoang Anh, Nguyen Thi; Tam, Khieu Thi; Tuan, Nguyen Van; Thien, Dao Duc; Quan, Tran Duc; Tam, Nguyen Thanh; Bao, Nguyen Chi; Do, Thi Thao; Nga, Nguyen Thi; Thuy, Trinh Thi; Sung, Tran Van; Delfino, Domenico V.
Source:
Natural product research 2019 v.33 no.6 pp. 796-802
ISSN:
1478-6427
Subject:
iridoid glycosides,   etc   ; Hedyotis; Oldenlandia; anthraquinones; apoptosis; butanol; carotenoids; caspase-3; chemical composition; chromatography; ethyl acetate; flavonoids; hexane; inhibitory concentration 50; leukemia; nuclear magnetic resonance spectroscopy; staining; triterpenoids;     Show all 18 Subjects
Abstract:
... This study describes the chemical constituents of Oldenlandia pinifolia (Wall. Ex G. Don) Kuntze (synonym Hedyotis pinifolia Wall. Ex G. Don) and discusses their anti-proliferative activities. Thirteen compounds were isolated from the n-hexane, ethyl acetate and n-butanol extracts of whole plants O. pinifolia by chromatography method. Their structures were elucidated using MS and NMR analysis and ...
DOI:
10.1080/14786419.2017.1410806

13. Antiangiogenic Activity of Compounds Isolated from Anarrhinum pedatum

Author:
Beladjila, Khadidja Aya; Berrehal, Djemaa; Kabouche, Zahia; Germanò, Maria Paola; D’Angelo, Valeria; De Tommasi, Nunziatina; D’Andrea, Felicia; Braca, Alessandra; De Leo, Marinella
Source:
Journal of natural products 2019 v.82 no.3 pp. 510-519
ISSN:
1520-6025
Subject:
iridoid glycosides,   etc   ; Anarrhinum; Danio rerio; aerial parts; blood vessels; butanol; chickens; embryo (animal); models; monoterpenoids; nuclear magnetic resonance spectroscopy; spectral analysis;     Show all 12 Subjects
Abstract:
... Ten new iridoid glycosides (1–10) and two new monoterpenoids (11 and 12), together with nine known compounds (13–21), were isolated from the n-butanol extract of the aerial parts of Anarrhinum pedatum. The structural characterization of all compounds was performed by spectroscopic analysis, including 1D and 2D NMR and HRESIMS experiments. The isolates were assayed for their antiangiogenic activity ...
DOI:
10.1021/acs.jnatprod.8b00893

14. Morroniside alleviates coxsackievirus B3-induced myocardial damage apoptosis via restraining NLRP3 inflammasome activation

Author:
Li, Weidong; Chen, Mao; Xu, Lishuai; Lv, Zhan; Chen, Li; Li, Yiling; He, WenFen
Source:
RSC advances 2019 v.9 no.3 pp. 1222-1229
ISSN:
2046-2069
Subject:
iridoid glycosides,   etc   ; apoptosis; biocompatibility; cardiac output; caspase-3; cytotoxicity; gene expression regulation; genes; heart; heart failure; heart rate; histopathology; inflammasomes; inflammation; interleukin-18; myocarditis; pathogenesis; rats;     Show all 18 Subjects
Abstract:
... Coxsackievirus B3 (CVB3)-induced myocardial damage always leads to serious heart failure by inducing cardiac injury. NLRP3 inflammasome activation has been identified as a central player in the pathogenesis of CVB3-induced viral myocarditis. Therefore, restraining NLRP3 inflammasome activation has been supposed to significantly alleviate the severity of myocardial damage and improve cardiac functi ...
DOI:
10.1039/c8ra08662a

15. Iridoid glycosides from the fruits of Cornus officinalis

Author:
Wang, Xin; Liu, Chong-Hui; Li, Jin-Jie; Zhang, Bo; Ji, Lin-Lin; Shang, Xiao-Ya
Source:
Journal of Asian natural products research 2018 v.20 no.10 pp. 934-942
ISSN:
1477-2213
Subject:
iridoid glycosides,   etc   ; Cornus officinalis; ethanol; fruits; neuroprotective effect; nuclear magnetic resonance spectroscopy; spectral analysis;     Show all 7 Subjects
Abstract:
... Four new iridoid glycosides named cornusphenosides A–D (1–4) were isolated from an ethanol extract of the fruits of Cornus officinalis (shan zhu yu). The structures of these compounds were elucidated on the basis of spectroscopic data (UV, IR, HRESIMS, and 1D and 2D NMR) and chemical evidence. The neuroprotective effects of compounds 1–4 were also assessed in vitro. ...
DOI:
10.1080/10286020.2018.1497609

16. Antimicrobial Activities of Two Iridoid Glycosides from Physochlaina physaloides

Author:
Wang, Qing-hu; Han, Na-ren-chao-ge-tu; Huo, Su-ri-na; Bao, Yin-ping
Source:
Chemistry of natural compounds 2018 v.54 no.4 pp. 680-683
ISSN:
0009-3130
Subject:
iridoid glycosides,   etc   ; antibacterial properties; bacteria; chemistry; ethyl acetate; nuclear magnetic resonance spectroscopy; spectral analysis;     Show all 7 Subjects
Abstract:
... A new iridoid glycoside, named physaloside A (1), together with one known iridoid glycoside (swertiamarin, 2), was isolated from the EtOAc extract of Physochlaina physaloides (L.) G. Don. The structure elucidation of 1 was carried out by 1D NMR (¹H and ¹³C NMR) and 2D NMR (COSY, HSQC, HMBC, and NOESY) spectral analysis. Antibacterial activities of the compounds were evaluated against various bacte ...
DOI:
10.1007/s10600-018-2445-5

17. Iridoid and phenylethanol glycosides from Scrophularia umbrosa with inhibitory activity on nitric oxide production

Author:
Han, Man-Fei; Zhang, Xing; Zhang, Liu-Qiang; Li, Yi-Ming
Source:
Phytochemistry letters 2018 v.28 pp. 37-41
ISSN:
1874-3900
Subject:
iridoid glycosides,   etc   ; Scrophularia; inhibitory concentration 50; nitric oxide; nuclear magnetic resonance spectroscopy; phenylethyl alcohol; structure-activity relationships;     Show all 7 Subjects
Abstract:
... Three new iridoid glycosides, namely umbrosides A–C (1–3); ten known iridoid glycosides (4–8 and 16–20); and seven known phenylethanoid glycosides (9–15) were isolated from Scrophularia umbrosa Dumortier, and their structures were established through spectroscopic methods including 1D and 2D NMR experiments and ESIMS analysis. The inhibitory activities of the isolated compounds on LPS-stimulated n ...
DOI:
10.1016/j.phytol.2018.09.011

18. Iridoid glycosides and polyphenolic compounds from Teucrium chamaedrys L.

Author:
Frezza, Claudio; Venditti, Alessandro; Matrone, Giorgia; Serafini, Ilaria; Foddai, Sebastiano; Bianco, Armandodoriano; Serafini, Mauro
Source:
Natural product research 2018 v.32 no.13 pp. 1583-1589
ISSN:
1478-6427
Subject:
iridoid glycosides,   etc   ; Teucrium chamaedrys; chemical constituents of plants; chemotaxonomy; chromatography; nuclear magnetic resonance spectroscopy; polyphenols; toxicity; traditional medicine; verbascoside; Italy;     Show all 11 Subjects
Abstract:
... In this work, the phytochemical analysis of Teucrium chamaedrys L. collected in Italy was reported. Eight compounds were isolated and identified by means of classical column chromatography and spectroscopic techniques, such as NMR and MS. In detail, these compounds were: verbascoside (1), forsythoside b (2), samioside (3), alyssonoside (4), harpagide (5), 8-O-acetyl-harpagide (6), cirsiliol (7) an ...
DOI:
10.1080/14786419.2017.1392948

19. The roles of foraging environment, host species, and host diet for a generalist pupal parasitoid

Author:
Reudler, J.H.; van Nouhuys, S.
Source:
Entomologia experimentalis et applicata 2018 v.166 no.4 pp. 251-264
ISSN:
0013-8703
Subject:
iridoid glycosides,   etc   ; Nymphalidae; Pteromalus; diet; foraging; host plants; host range; laboratory experimentation; learning; oviposition; parasitoids; progeny; pupae; rearing; superparasitism;     Show all 15 Subjects
Abstract:
... Even for parasitoids with a wide host range, not all host species are equally suitable, and host quality often depends on the plant the host feeds on. We compared oviposition choice and offspring performance of a generalist pupal parasitoid, Pteromalus apum (Retzius) (Hymenoptera: Pteromalidae), on two congeneric hosts reared on two plant species under field and laboratory conditions. The plants c ...
DOI:
10.1111/eea.12657

20. Two new iridoid glycosides from the leaves of Callicarpa nudiflora

Author:
Wang, Jie; Fu, Hui-Zheng; Luo, Yue-Hua; Ma, Yuan-Yu; Huang, Bo; Ma, Shuang-Cheng
Source:
Journal of Asian natural products research 2018 v.20 no.3 pp. 242-248
ISSN:
1477-2213
Subject:
iridoid glycosides,   etc   ; Callicarpa; bioassays; epithelium; hepatoprotective effect; leaves; mass spectrometry; nuclear magnetic resonance spectroscopy; rats; stem cells; toxicity;     Show all 11 Subjects
Abstract:
... Two new iridoid glycosides, callicoside C (1) and callicoside D (2), together with three known compounds (3–5), were isolated from the leaves of Callicarpa nudiflora. Their structures were established by 1D and 2D NMR spectroscopy and mass spectrometry. In an in vitro bioassay, compound 1 showed pronounced hepatoprotective activity against d-galactosamine-induced toxicity in WB-F344 rat hepatic ep ...
DOI:
10.1080/10286020.2017.1323884