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1.
A new abietane diterpenoid,orthosiphonol (11-methoxy-12,14-dihydroxy-8,11,13-abieta trien-7-one)(1) together with known 11-hydroxysugiol (2) were isolated from Orthosiphon wulfenioides. Their structures were determined on the basis of spectroscopic evidence. 相似文献
2.
ShouJunGUO XingHuaZHAO DongLiangCHENG 《中国化学快报》2004,15(12):1451-1453
A new diterpenoid trisaccharide, smithoside A, was isolated from Aster smithianus. Its structure was identified as pimar- 15 (16)-β-en-3β, 8β, 11α-triol-3-O-β-D-glucopyranosyl ( 1→3)- [β-glucopyranosyl (1→2)]-β-D-glucopyranoside on the basis of the spectral and chemical methods. 相似文献
3.
Zhi NA Bei JIANG Hui YANG Zhong Wen LIN Han Dong SUN* Laboratory of Phytochemistry Kunming Institute of Botany Chinese Academy of Sciences Kunming Chemistry Deparment of the College of Life Science Chemistry Yunnan University K 《中国化学快报》2001,(8)
Isodon enanderianus (Hand. -Mazz.) H. W. Li, has been used in folk medicine as anti-inflammatory and detoxified agent1. The Isodon genus is known to be rich in ent-kaurane diterpenoids, a series of new ent-kaurane diterpenoids have been isolated from the dried leaves of I. enanderianus2-4. In order to find more biologically active substances, we have carefully investigated the chemical constituents of I. enanderianus collected in Shiping county of Yunnan province, and as a result, enanderi… 相似文献
4.
Sheng Hong LI Hong Jie ZHANG* Ping YAO Han Dong SUN Phytochemistry Laboratory Kunming Institute of Botany Academia Sinica Kunming Guizhou Institute of Traditional Chinese Medicine Guiyang 《中国化学快报》2001,(5)
Along with the major constituents taxoids, some non-taxane diterpenoids have also been isolated1. During the course of our phytochemical investigation on the bark of Taxus yunnanensis. Cheng et L. K. Fu, a new abietane diterpenoid, taxayunnin (1), and the known taxamairin C (2)2, were isolated. The structure elucidation of taxayunnin 1 was established by spectral analysis.Taxayunnin 1, pale yellow needles, mp 215oC, showed a molecular ion peak at m/z 346 [M+] in its EI mass spectrum, which… 相似文献
5.
Ching‐Kuo Lee Ming‐Hsi Yeh Tzong‐Huei Lee His‐Lin Chiu Yueh‐Hsiung Kuo 《Helvetica chimica acta》2009,92(10):1983-1989
Four unique bicyclo[3.3.1]nonadienemethanol lignans, designated lanceolatanins A ( 1 ), B ( 2 ), C ( 3 ), and D ( 4 ), along with one previously known compound, isolariciresinol ( 5 ), were isolated from the MeOH extracts of the heartwood of Cunninghamia lanceolata. Their structures were elucidated by application of various spectroscopic methods, including 1D‐ and 2D‐NMR techniques, to their acetylated derivatives 1a, 2a, 3a , and 4a . Their possible biosynthetic formations are also discussed. 相似文献
6.
A new diterpenoid dimer annonebinide A has been isolated from the stems of Annona glabra.Its structure was determined to be ent-16α-hydroxykauran-17-yl ent-16β-kauran-17-oate on the basis of spectroscopic and chemical evidence. 相似文献
7.
Chun‐Hua Yang Xia‐Chang Wang Qing‐Fa Tang Wen‐Ying Liu Jing‐Han Liu 《Helvetica chimica acta》2008,91(4):759-765
A new diterpenoid, guan fu diterpenoid A ( 1 ), and a new diterpenoid alkaloid, guan fu base S ( 2 ), were isolated from the Chinese medicinal herb Aconitum coreanum (Lèvl. ) Rapaics , together with five known diterpenoid alkaloids guan fu base P, guan fu base R, guan fu base G, guan fu base F, and guan fu base Z. The structures of the two new compounds were elucidated as ent‐kaurane‐16,20‐diol ( 1 ) and (11β,13S)‐2,3,15,16‐tetradehydro‐16,17‐dihydrohetisan‐11,13,14‐triol 11,13‐diacetate ( 2 ) on the basis of HR‐MS and 2D‐NMR analyses. This is the first report of an ent‐kaurane diterpenoid in Aconitum coreanum. 相似文献
8.
M. N. Sultankhodzhaev B. Tashkhodzhaev B. B. Averkiev M. Yu. Antipin 《Chemistry of Natural Compounds》2002,38(1):78-82
The known diterpenoid alkaloids karacoline, karakanine, songorine, napelline, 12-acetylnapelline, cammaconine, and a new 7,17-secoalkaloid of the lycoctonine type, secokaraconitine, were isolated from tubers of Aconitum karacolicum. An x-ray structure analysis of the new alkaloid was performed. 相似文献
9.
Xue Mei NIU Sheng Hong LI Shuang Xi MEI Zhong Wen LIN Han Dong SUN* Laboratory of Phytochmistry Kunming Institute of Botany Academia Sinica Kunming 《中国化学快报》2001,(10)
Isodon eriocalyx var. laxiflora C. Y. Wu & H. W. Li, is a perennial herb naturally growing in the southern area of Yunnan province. In our continuing studies1 on its leaves collected from Xishuanbana prefecture, a new 6,7-seco-ent-kaurane diterpenoid, named laxiflorin E (1), together with two known 6,7-seco-ent-kaurane diterpenoids2, eriocalyxin A (2) and laxiflorin C (3), was isolated. Their structures were established by spectroscopic analysis. Compound 1, obtained as colorless rhombus… 相似文献
10.
New Diterpenoid Alkaloids from Spiraea japonica var. Ovalifolia 总被引:2,自引:0,他引:2
Guo Ying ZUO Hong Ping HE Xin HONG Wei Ming ZHU Yi Ming HU Xiao Sheng YANG Xiao Jiang HAO* Laboratory of Phytochemistry Kunming Institute of Botany Chinese Academy of Sciences Kunming Kunming Hospital PLA Kunming 《中国化学快报》2001,(2)
In the investigation of the chemical constituents of Spireae japonica L. f. var. ovalifolia (Rosaceae), a shrub originated in Songming, Yunnan, five new diterpenoid alkaloids, 19-O-deethylspiramine N (1), deacetylspiramine S (2), spiramidine A (3), spiramidine B (4) and deacetylspiramine F (5), were isolated from aerial parts of the plant and structurally elucidated. Compound 1, a white amorphous powder with [(]+17.99 (c, 0.26, MeOH ), was determined to have the molecular formula of C20H… 相似文献
11.
WereportedsomeconstituentsfromtheplantofC.serrartumvar.amplexghliumMoldenkel.Furtherstudyontheaerialpadsoftheplainresultedintheisolationoftwonewlabdanetypediterpenoidglucosides,cleroserraosideA(l)andcleroserraosideB(2).InthispaperwedescribethestructIJralelucidationofthecompounds.CleroserrosideA(l),[a]:'-97.22(c0.289,MeOH),wasobtainedaswhiteamorphouspowders.Itexhibitedan[M-l],ionpeakatm/z481inthenegativeionFABMSindicatingitsmolecularweighttobe482.ThemolecularformulawasdeterminedasC,,H.,… 相似文献
12.
Zhong YUAN Zhi Min LIANG 《中国化学快报》2006,17(11):1460-1462
A new triterpenoid saponin, named codonolaside (1) was isolated from the root of Codonopsis lanceolata.Its structure was determined by analysis of its spectral and chemical data. 相似文献
13.
A New Jatrophane Diterpenoid Ester from Euphorbia turczaninowii 总被引:1,自引:0,他引:1
Li Gen LIU Ren Xiang TAN You Ming GONG 《中国化学快报》2006,17(2):201-203
A new jatrophane diterpenoid ester (2S, 3S, 4R, 5R, 7S, 8R, 13R, 15R) - 3, 5, 7, 8, 15- pentaacetoxy-9, 14-dioxojatropha-6(17), 11E-diene was isolated from the whole plant of Euphorbia turczaninowii Kar. & Kit.. Its structure was characterized by spectral analysis and confurmed by X-ray crystallographic analysis. 相似文献
14.
The Diterpenoid Quinones from Coleus forskohlii 总被引:4,自引:0,他引:4
Chun Suo YAO Yun Long XU* Laboratory of Phytochemistry Kunming Institute of Botany Academia Sinica Kunming 《中国化学快报》2001,(4)
Coleus forskohlii is only distributed in Yunnan and the southern regions of Asia. The decoction of the plant is used in local folk medicine against asthma, cough and bronchitis. Meanwhile, the plant was developed into a new drug for the treatment of asthma, cough, acute and chronic bronchitis several years ago by our group1. It appears that the Coleus is rich source of diterpenoids with different oxygenation patterns2, and six diterpenoids have been isolated from its whole plant distributed i… 相似文献
15.
16.
A new diterpenoid was isolated from the ethanolic extract of the dried root bark of Tripterygium wilfordii Hook.f. It is the first example of abietane diterpenoid glycoside isolated from Tripterygium wilfordii Hook.f.Its structure was identified to be 11-0-β-D-glucopyranosyl-neotriptophenolide based on spectral methods. 相似文献
17.
Mohammad Alhilal Yaser A. M. Sulaiman Suzan Alhilal Sobhi M. Gomha Salama A. Ouf 《Molecules (Basel, Switzerland)》2021,26(5)
This paper aimed to investigate the potential antifungal influences of new alkaloids from Delphinium peregrinum L. var. eriocarpum Boiss. New Diterpenoid alkaloids Delcarpum (1), Hydrodavisine (4) and known alkaloids Peregrine (2), Delphitisine (3) were isolated by different chromatographic methods from the aerial parts of D. Peregrinum eriocarpum Boiss, which grows in Syria. The structures of alkaloids were proposed based on 1D NMR spectroscopy 1H-NMR, 13C-NMR, DEPT-135, DEPT-90, 2D NMR spectroscopy DQF-COSY, HMQC, EI-Ms mass spectrum, and IR spectroscopic measurements. The antifungal activity of the isolated alkaloids was evaluated against different dermatophyte fungal isolates compared with fluconazole. In the case of Peregrine (2) the minimum inhibitory concentrations(MICs) recorded 128–256, 32–64, and 32 for Epidermophyton floccosum, Microsporum canis, and Trichophyton rubrum, respectively, compared to 32–64, 16, and 32 μg/mL in the case of fluconazole, respectively. The MICs recorded on application of the four alkaloids mixture were 64, 32, and 16 in the case of E. floccosum, M. canis, and T. rubrum, respectively, which were significantly lower than that measured for each of the individual alkaloid and were compatible for fluconazole. In conclusion, MICs of the tested alkaloids showed a variable potential effect on the investigated fungal isolates. Peregrine (2) was the most effective alkaloid, however, the application of the mixture of alkaloids induced significant synergistic activity that was more pronounced than the application of individual ones. 相似文献
18.
Aconitum species have been used as a traditional chinese medicine having analgesic activity. Several groups 1-3 have studied the components of the roots of Aconitum nagarum var. lasiandrum W.T. Wang. Further chemical investigation of this plant led to isolate two new diterpenoid alkaloids, nagadine 1 and 14-benzoylsachaconitine 2. This type of norditerpenoid alkaloid has not been reported before.Nagadine 1, +43.0 (c, 0.00273, CHCl3), was isolated as white amorphous powder. The HREIMS of … 相似文献
19.
Chi‐I Chang Yen‐Cheng Li Chang‐Syan Yang Che‐Yi Chao Yi‐Jen Li Hsun‐Shuo Chang Ching‐Jeng Huang Ching‐Chuan Kuo Yueh‐Hsiung Kuo 《Helvetica chimica acta》2015,98(1):123-127
Two new labdane‐type diterpene acids, (12S)‐12‐hydroxylabda‐8(17),13(16),14‐trien‐18‐oic acid ( 1 ) and (12R)‐12‐hydroxy‐15,16‐epoxylabda‐8(17),13‐dien‐18‐oic acid ( 2 ), along with a known labdane‐type diterpene, (11E)‐15,16‐bisnor‐13‐oxolabda‐8(17),11‐dien‐19‐oic acid ( 3 ), were isolated from the MeOH extract of the wood of Cunninghamia konishii. Their structures were determined by analysis of spectroscopic data and comparison with the data of known analogs. 相似文献
20.
S. Suzgec L. Bitis S. Pirildar H. Ozcelik J. Zapp H. Becker F. Mericli A. H. Mericli 《Chemistry of Natural Compounds》2006,42(1):75-77
From the aerial parts of Delphinium schmalhausenii six norditerpenoid alkaloids gigactonine, lycoctonine, anthranoyllycoctonine, delsemine A, delsemine B, N-acetyldelectine and a diterpenoid alkaloid septatisine were isolated.
Published in Khimiya Prirodnykh Soedinenii, No. 1, pp. 60–61, January–February, 2006. 相似文献