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1. Triterpenoids from Rosa odorata Sweet var. gigantea (Coll.et Hemsl.) Rehd.et Wils and their chemotaxonomic significance

Author:
Lv, Kaiyuan; Li, Jingyang; Wang, Chunlei; He, Lingshuang; Quan, Shuai; Zhang, Jingze; Liu, Dailin
Source:
Biochemical systematics and ecology 2021 v.96 pp. 104240
ISSN:
0305-1978
Subject:
triterpenoids,   etc   ; Rosa; chemotaxonomy; ecology;     Show all 4 Subjects
Abstract:
... Thirty-three reported compounds were obtained for the first time from Rosa odorata Sweet var. gigantea (Coll.et Hemsl.) Rehd. et Wils and were all identified as triterpenoids. The structure of these compounds was determined by physicochemical constants and spectral analyses (NMR, MS). This is the first report on four compounds (7, 9, 10 and 22) from the family Rosaceae and thirteen compounds (2, 3 ...
DOI:
10.1016/j.bse.2021.104240

2. 3,4-Secocycloartane Triterpenoids from the Cones of Pseudolarix amabilis

Author:
Xiao, Si-Jia; Li, Bo; Huang, Zheng-Rui; Yuan, Wen-Lin; Ye, Ji; Li, Hui-Liang; Xu, Xi-Ke; Shen, Yun-Heng; Zhang, Wei-Dong
Source:
Natural products and bioprospecting 2021 v.11 no.1 pp. 119-126
ISSN:
2192-2195
Subject:
triterpenoids,   etc   ; Pseudolarix amabilis; ethanol;     Show all 3 Subjects
Abstract:
... Four new 3,4-secocycloartane triterpenoids, pseudolactones A–D (1–4), were isolated from the ethanol extract of the cones of Pseudol arixamabilis. Their structures were established by extensive 1D- and 2D-NMR experiments. The cones of P. arixamabilis are enriched in the ring-expanded or cleaved cycloartane triterpenoids. This work provides new insight into cycloartane triterpenoids from the cones ...
DOI:
10.1007/s13659-020-00285-7

3. Natural pentacyclic triterpenoid acids potentially useful as biocompatible nanocarriers

Author:
Malík, Matěj; Velechovský, Jiří; Tlustoš, Pavel
Source:
Fitoterapia 2021 v.151 pp. 104845
ISSN:
0367-326X
Subject:
triterpenoid saponins,   etc   ; biocompatibility; isoprene; nanocarriers;     Show all 4 Subjects
Abstract:
... The importance of natural raw materials has grown recently because of their ready availability, renewable nature, biocompatibility and controllable degradability. One such group of plant-derived substances includes the triterpenoid acids, terpenic compounds consisting of six isoprene units, a carboxyl group and other functional groups producing various isomers. Most can be easily extracted from di ...
DOI:
10.1016/j.fitote.2021.104845

4. A New Triterpenoid Saponin from Clematis akebioides

Author:
Zhang, Pu-Zhao; Feng, Shao; Zhang, Ya-Mei
Source:
Chemistry of natural compounds 2021 v.57 no.1 pp. 111-114
ISSN:
0009-3130
Subject:
triterpenoid saponins,   etc   ; Clematis; chemistry; spectroscopy;     Show all 4 Subjects
Abstract:
... A new triterpenoid saponin and nine known compounds were isolated from the aerial parts of Clematis akebioides. The structures of these compounds were determined using spectroscopic methods and comparison with the literature. All of these compounds were obtained from C. akebioides for the first time. ...
DOI:
10.1007/s10600-021-03293-2

5. Pentacyclic triterpenoids, fuscotorunones A and B, with ε-caprolactone in ring E from Fuscoporia torulosa

Author:
Noji, Masaaki; Yoneyama, Tatsuro; Nishihama, Kouichi; Elshamy, Abdelsamed I.; Hashimoto, Toshihiro; Umeyama, Akemi
Source:
Phytochemistry 2021 v.187 pp. 112748
ISSN:
0031-9422
Subject:
triterpenoids,   etc   ; Fuscoporia; biochemical pathways; mushrooms; plant biochemistry;     Show all 5 Subjects
Abstract:
... Fuscoporia torulosa (Pers.) (Hymenochaetaceae) is a mushroom forming woody fruiting body on living or dead trees. Two curious pentacyclic triterpenoids, fuscotorunones A and B, each of which has a unique ε-caprolactone in ring E, were isolated from the fruiting bodies of F. torulosa. The structures of fuscotorunones A and B were elucidated using MS analyses, IR spectrum and extensive 2D-homo and h ...
DOI:
10.1016/j.phytochem.2021.112748

6. Occurrence and biosynthesis of plant sesterterpenes (C25), a new addition to terpene diversity

Author:
Chen, Qingwen; Li, Jianxu; Ma, Yihua; Yuan, Weiliang; Zhang, Peng; Wang, Guodong
Source:
Plant communications 2021 pp. 100184
ISSN:
2590-3462
Subject:
triterpenoids,   etc   ; biosynthesis; diterpenoids; evolution; metabolites; monoterpenoids; sesquiterpenoids;     Show all 7 Subjects
Abstract:
... Terpenes, the largest group of plant-specialized metabolites, have received considerable attention for their highly diverse biological activities. Monoterpenes (C10), sesquiterpenes (C15), diterpenes (C20), and triterpenes (C30) have been extensively investigated at both the biochemical and molecular levels over the past two decades. Sesterterpenes (C25), an understudied terpenoid group, were rece ...
DOI:
10.1016/j.xplc.2021.100184

7. A New Ursane-Type Triterpenoid from the Leaves of Rhododendron dauricum with Cytotoxic Activity

Author:
Ye, Chao; Jin, Mei; Sun, Jinfeng; Wang, Jiaming; Li, Sainan; Zhou, Wei; Li, Gao
Source:
Chemistry of natural compounds 2021 v.57 no.2 pp. 327-330
ISSN:
0009-3130
Subject:
triterpenoids,   etc   ; Rhododendron; chemistry; cytotoxicity; humans; spectral analysis;     Show all 6 Subjects
Abstract:
... A new ursane-type triterpenoid, 20-taraxastene-22α-methoxy-3β-ol (1) together with nine known triterpenoids (2–10), was isolated from the leaves of Rhododendron dauricum L. Their structures were established from spectroscopic data (1D, 2D NMR, and HR-ESI-MS) and comparison with reported values. Among the isolates, compounds 1 and 8 were found in the family Ericaceae for the first time, and compoun ...
DOI:
10.1007/s10600-021-03342-w

8. Toonamicrocarpavarin, a new tirucallane-type triterpenoid from Toona Ciliata

Author:
Zhang, Ling; Xia, Jianjun; Duan, Yanqing; Wei, Keyi; Gao, Rui; Li, Dasan; Liu, Xiaomin; Zhang, Tiandong; Qiu, Minghua
Source:
Natural product research 2021 v.35 no.2 pp. 266-271
ISSN:
1478-6427
Subject:
triterpenoids,   etc   ; Ciliata; Toona ciliata; chemotaxonomy; cytotoxicity; research;     Show all 6 Subjects
Abstract:
... Toonamicrocarpavarin (1), a new tirucallane-type triterpenoid, along with eight known ones, piscidinol A (2), toonaciliatavarin E (3), toonayunnanin A (4), 7-acetyneotrichilenone (5), hispidol A (6), odoratone (7), phellochin (8), toonaciliatavarin D (9), were isolated from T. ciliata. Their structures were identified on the basis of ESIMS, HREIMS and 1 D/2D NMR analysis. The cytotoxic activity of ...
DOI:
10.1080/14786419.2019.1627351

9. Triterpenoid saponins and phenylpropanoid glycoside from the roots of Ardisia crenata and their cytotoxic activities

Author:
SONG, Ning-Ning; YANG, Lei-Min; ZHANG, Min-Jie; AN, Ren-Feng; LIU, Wei; HUANG, Xue-Feng
Source:
Chinese journal of natural medicines 2021 v.19 no.1 pp. 63-69
ISSN:
1875-5364
Subject:
triterpenoid saponins,   etc   ; Ardisia; cytotoxicity; spectral analysis;     Show all 4 Subjects
Abstract:
... Two new triterpenoid saponins, ardisicrenoside R and S (1 and 2), and one new phenylpropanoid glycoside, ardicrephenin (3), along with five known compounds (4−8), were isolated from roots of Ardisia crenata. Their structures were elucidated on the basis of NMR spectroscopic data and chemical methods. Compounds 2−7 were evaluated for their cytotoxic activities against A549, MCF-7, HepG2 and MDA-MB- ...
DOI:
10.1016/S1875-5364(21)60007-9

10. A New 27-Norcucurbitane Triterpenoid from the Fruits of Momordica charantia var. abbreviata

Author:
Chen, Chiy-Rong; Liao, Yun-Wen; Hsu, Jue-Liang; Lin, Yun-Sheng; Chang, Chi-I
Source:
Chemistry of natural compounds 2020 v.56 no.4 pp. 688-691
ISSN:
0009-3130
Subject:
triterpenoids,   etc   ; Momordica charantia; chemistry;     Show all 3 Subjects
Abstract:
... A new 27-norcucurbitane triterpenoid, 5β,19-epoxy-3β-hydroxy-19(R)-methoxy-27-norcucurbita-6,23(E)-dien-25-one (1), was isolated from the fruits of Momordica charantia var. abbreviata. Its structure was elucidated by spectroscopic analyses including 1D and 2D NMR (¹H, ¹³C, COSY, HMQC, HMBC, and NOESY) and comparison with the data of known analogues. ...
DOI:
10.1007/s10600-020-03120-0

11. Two New Oleanane Triterpenoids from Syzygium samarangense

Author:
Hu, Yi-Kao; Wang, Li; Zhao, Yan; Liu, Jing-Ping; Wang, Ji-Hua; Zhao, Yong
Source:
Chemistry of natural compounds 2020 v.56 no.4 pp. 692-695
ISSN:
0009-3130
Subject:
triterpenoids,   etc   ; Syzygium samarangense; chemistry;     Show all 3 Subjects
Abstract:
... Two new oleanane triterpenoids, sysamarins F (1) and G (2), along with one known analogue (3), were isolated from the leaves of Syzygium samarangense. Their structures were elucidated by means of extensive spectroscopic techniques, including interpretation of 1D and 2D NMR spectra and comparison with the values reported in the literature. ...
DOI:
10.1007/s10600-020-03121-z

12. Synthesis of O-Vinyl Ethers of Pentacyclic Triterpene Alcohols and Lupane-Type Oximes

Author:
Komissarova, N. G.; Orlov, A. V.; Shitikova, O. V.
Source:
Chemistry of natural compounds 2020 v.56 no.3 pp. 481-486
ISSN:
0009-3130
Subject:
triterpenoids,   etc   ; acetylene; chemistry; oximes;     Show all 4 Subjects
Abstract:
... Vinylation by acetylene of lupane-type pentacyclic triterpene C-28- and C-3β-alcohols and C-20-oximes in superbase solutions synthesized the corresponding C-28- and C-3β-O-vinyl ethers and C-20-O-vinyloximes. The reaction of 3β,28-dimethoxy-29-norlupan-20-one with acetylene in superbase KOH–DMSO produced a derivative with an N-vinylpyrrole ring in the C-19 side chain. ...
DOI:
10.1007/s10600-020-03067-2

13. Cytotoxic triterpenoids from Chisocheton pentandrus

Author:
Salam, Supriatno; Harneti, Desi; Maharani, Rani; Nurlelasari,; Safari, Agus; Hidayat, Ace Tatang; Lesmana, Ronny; Nafiah, Mohamad Azlan; Supratman, Unang; Kyle Prescott, Thomas Alexander; Shiono, Yoshihito
Source:
Phytochemistry 2021 v.187 pp. 112759
ISSN:
0031-9422
Subject:
triterpenoids,   etc   ; Chisocheton; bark; breast neoplasms; cisplatin; cytotoxicity; hexane; plant biochemistry;     Show all 8 Subjects
Abstract:
... Eleven undescribed triterpenoids (pentandrucines A to K) were isolated from the n-hexane extract of the stem bark of Chisocheton pentandrus (Blanco) Merr. These comprised ten undescribed dammarane-type triterpenoids and one undescribed apotirucallane-type triterpenoid. Additionally, two dammarane-type triterpenoids, four apotirucallane-type triterpenoids and two tirucallane-type triterpenoids were ...
DOI:
10.1016/j.phytochem.2021.112759

14. Preparative separation of structural isomeric pentacyclic triterpenes from Eriobotrya japonica (Thunb.) leaves by high speed countercurrent chromatography with hydroxypropyl-β-cyclodextrin as additive

Author:
Bao, Honglei; Sun, Wenyu; Jin, Yang; Wang, Chaoyue; Wang, Xiang; Sun, Hengmian; Chu, Chu; Tong, Shengqiang
Source:
Journal of chromatography 2021 v.1646 pp. 462066
ISSN:
0021-9673
Subject:
triterpenoids,   etc   ; Eriobotrya japonica; countercurrent chromatography; pH; petroleum; solvents;     Show all 6 Subjects
Abstract:
... Maslinic acid and corosolic acid with high purity were successfully separated from Eriobotrya japonica (Thunb.) leaves by two-step countercurrent chromatographic separation. Two biphasic solvent systems composed of petroleum ether-ethyl acetate-ethanol-water (6:4:5:5, v/v) and petroleum ether-ethyl acetate-ethanol-0.10 mol/L of hydroxypropyl-β-cyclodextrin with pH 7.0 (8:2:3.5:6.5, v/v) were selec ...
DOI:
10.1016/j.chroma.2021.462066

15. C-28/C-30 oxidized cycloartanes from the leaves and twigs of Caloncoba dusenii Gilg

Author:
Nguetsa, Leonel Zeufack; Mpetga, James D. Simo; Bitchagno, Gabin Thierry M.; Tadjuidje, Jules Delain; Groß, Jonathan; Lenta, Bruno Ndjakou; Opatz, Till; Sewald, Norbert; Tene, Mathieu
Source:
Phytochemistry letters 2021 v.43 pp. 145-149
ISSN:
1874-3900
Subject:
triterpenoids,   etc   ; gel chromatography; mass spectrometry; plant biochemistry; stereochemistry;     Show all 5 Subjects
Abstract:
... Four hitherto unreported cycloartane-type triterpenes (1-4) with C-28/C-30 oxidized methyl groups together with two known compounds (5-6) have been obtained from the leaves and twigs of Caloncoba dusenii Gilg. The compounds were isolated through extraction and silica gel column chromatography. Their structures and relative stereochemistry were determined by extensive use of spectroscopic technique ...
DOI:
10.1016/j.phytol.2021.03.026

16. Chemical components from Sambucus adnata wall

Author:
Li, Qiao-Yue; Wang, Wei; Li, Lian-Hui; Wang, Wen-Jing
Source:
Biochemical systematics and ecology 2021 v.96 pp. 104266
ISSN:
0305-1978
Subject:
triterpenoids,   etc   ; Caprifoliaceae; Sambucus; chemotaxonomy; ecology; palmitates; phytochemicals; stearic acid; sterols;     Show all 9 Subjects
Abstract:
... Sambucus adnata Wall. belongs to Caprifoliaceae family. Phytochemical investigation on the aerial parts of S. adnata led to the isolation and identification of 17 known compounds (1–17) including triterpenoids and sterols. Compounds 1 and 8 are isolated from Sambucus adnata for the first time, and it is the first report that compounds 2, 5–6, 9–10, 12–15, and 17 are isolated from the plants of gen ...
DOI:
10.1016/j.bse.2021.104266

17. Three new tirucallane triterpenoids from the fruits of Chukrasia tabularis and their biological activities

Author:
Hu, Jia-Meng; Chen, Hui-Qin; Dong, Xuan; Wang, Hao; Dai, Hao-Fu; Gai, Cui-Juan; Wei, Yan-Mei; Cheng, Zi-An; Zhuo, Zhi-Hang; Liu, Shou-Bai; Mei, Wen-Li
Source:
Phytochemistry letters 2021 v.43 pp. 70-74
ISSN:
1874-3900
Subject:
triterpenoids,   etc   ; Chukrasia tabularis; cytotoxicity; ethanol; neoplasm cells; plant biochemistry;     Show all 6 Subjects
Abstract:
... Three new triterpenoids (1–3), including two new 19 (10 → 9β) abeo-tirucallane derivatives (1–2) and a new tirucallane-type triterpenoid (3), together with two known tirucallane-type triterpenoids (4–5) were isolated from the ethanol extract of the fruits of Chukrasia tabularis. Their structures were elucidated on the basis of 1D and 2D NMR spectroscopic analyses and MS data. The isolated triterpe ...
DOI:
10.1016/j.phytol.2021.03.013

18. New pentacyclic triterpenoids isolated from Leptopus chinensis and their hepatoprotective activities on tert-butyl hydroperoxide-induced oxidative injury

Author:
Long, Liping; Yang, Ye; Zhu, Tianliang; Zhang, Xinxin; Qi, Shizhou; Liu, Ting; Song, Kairu; Wang, Da; Gao, Huiyuan
Source:
RSC advances 2021 v.11 no.21 pp. 12784-12793
ISSN:
2046-2069
Subject:
triterpenoids,   etc   ; apoptosis; cell viability; hepatotoxicity; oxidative toxicity; reactive oxygen species;     Show all 6 Subjects
Abstract:
... Eight unknown pentacyclic triterpenoids (1–4 and 8–11), along with eight known analogues (5–7 and 12–16) have been first isolated from the dried whole plant of Leptopus chinensis. The structures of the new compounds were determined by comprehensive spectroscopic methods, including 1D and 2D NMR, as well as HRESIMS measurements. Meanwhile, the hepatoprotective activities of the isolated compounds w ...
DOI:
10.1039/d1ra00962a

19. Phytochemical and chemotaxonomic study on the leaves of Rhododendron amesiae

Author:
Zeng, Ke; Ban, Shurong; Cao, Zhiwei; Cao, Pengkun; Luo, Xujing; Wang, Rong; Zhao, Zhengbao; Xu, Jinfang
Source:
Biochemical systematics and ecology 2021 v.95 pp. 104232
ISSN:
0305-1978
Subject:
triterpenoids,   etc   ; Rhododendron; chemotaxonomy; diterpenoids; ecology; flavonoids; spectral analysis;     Show all 7 Subjects
Abstract:
... The phytochemical study of the leaves of Rhododendron amesiae (Ericaceae) led to the isolation and identification of 19 compounds, including six diterpenoids (1–6), six triterpenoids (7–12) and seven flavonoids (13–19). The chemical structures of these compounds were identified by spectroscopic data, as well as by comparison with previously reported data in literature. This is the first systematic ...
DOI:
10.1016/j.bse.2021.104232

20. Two new friedelane lactones from the roots of Caloncoba glauca (Flacourtiaceae) and evaluation of their cardiotonic activity on isolated frog’s heart

Author:
Nko'o, Moïse Henri Julien; Noulala, Cédric Guy Tchatchouang; Tsala, David Emery; Meva, François Eya’ane; Sewald, Norbert; Mpondo, Emmanuel Albert Mpondo; Wansi, Jean Duplex; Toze, Flavien Aristide Alfred; Ndom, Jean Claude
Source:
Phytochemistry letters 2021 v.42 pp. 27-35
ISSN:
1874-3900
Subject:
triterpenoids,   etc   ; Salicaceae; calcium channels; frogs; heart; lactones; plant biochemistry;     Show all 7 Subjects
Abstract:
... Two new friedelane triterpenoids, 20,20-dimethyl-3,27-dioxo-(D:A)-friedo-olean-27,22α-lactone (20,20-dimethylglaucalactone) (1) and 3α-ethanoyloxy-30-nor-(D:A)- friedo-olean-20(29)-en-27,22α-lactone (3-acetoxyglaucalactone) (2) and four known compounds (3–6) were isolated from the methanolic extract of the roots of Caloncoba glauca (P. Beauv.) Gild (Flacourtiaceae). Their structures were determine ...
DOI:
10.1016/j.phytol.2021.01.002