Li-sheng Ding

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Organization: Chengdu Institute of Biology

Department: Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization

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Chemicals
References

Three new chlorinated phenolic glycosides from Przewalskia tangutica

Co-reporter:Min Zhao, Zhuo-Ma Da-Wa, Yu-Cheng Gu, Da-Le Guo, ... Yan Zhou

Phytochemistry Letters 2017 Volume 20(Volume 20) pp:

Publication Date(Web):1 June 2017

DOI:10.1016/j.phytol.2017.04.037

•Three new chlorinated phenolic glycosides were isolated from Przewalskia tangutica.•Their structures were elucidated by NMR analysis and chemical methods.•Przewatangoside A showed weak cytotoxicity against SMMC-7721.Three new chlorinated phenolic glycosides, namely przewatangosides A-C (1-3), along with one known compound, globosumoside A (4), were isolated from the whole plants of Przewalskia tangutica. Their structures were unequivocally determined by extensive spectroscopic analysis and chemical method. The cytotoxic activities of the isolated phenolic glycosides (1-4) were evaluated against the five human cancer cell lines A549, MCF-7, SMMC-7721, HepG2 and HL-60. Przewatangoside A (1) exhibited weak cytotoxicity against SMMC-7721 with the IC50 value of 38.1 μM. All the tested compounds were inactive (IC50 > 50 μM) to the normal human hepatocyte cell line (L02).Download high-res image (306KB)Download full-size image

Three new labdane diterpenes from Loxocalyx urticifolius

Co-reporter:Min Zhao, Da-Le Guo, Lv-Yi Yuan, Yu-Cheng Gu, ... Yan Zhou

Phytochemistry Letters 2017 Volume 19(Volume 19) pp:

Publication Date(Web):1 March 2017

DOI:10.1016/j.phytol.2016.11.010

•Three new labdane diterpenes were isolated from Loxocalyx urticifolius.•Their structures were elucidated by NMR analysis and chemical method.•The absolute configuration of 1 was confirmed by X-ray crystallographic analysis.•Compound 3 exhibited weak cytotoxicity against A549 and MCF-7.Three new labdane diterpenes, namely loxocalyxin D (1), loxocalyxin E (2) and 13-epiloxocalyxin E (3), were isolated from the whole plants of Loxocalyx urticifolius Hemsl. Their structures were elucidated by extensive spectral analysis and chemical methods. The absolute configuration of loxocalyxin D (1) was confirmed by X-ray crystallographic analysis. The cytotoxic activities of the isolated labdane diterpenes were evaluated against the four human cancer cell lines A549, HepG2, HL-60 and MCF-7. 13-epiloxocalyxin E (3) exhibited selective cytotoxicity against A549 and MCF-7 with the IC50 values of 22.4 and 47.3 μM, respectively.Download high-res image (96KB)Download full-size image

Chemical constituents from Cremanthodium brunneo-pilosum S. W. Liu

Co-reporter:Zhi-Zhou He, Li-Sheng Ding, Rui-Hong Xu, Bo Wan, Shu-Lin Peng, Hao-Huai Liu, Yuan Zeng

Biochemical Systematics and Ecology 2015 Volume 61() pp:118-120

Publication Date(Web):August 2015

DOI:10.1016/j.bse.2015.06.006

•Fourteen compounds were firstly isolated from Cremanthodium brunneo-pilosum.•Sesquiterpenoids could be used as chemotaxonomic markers of Cremanthodium brunneo-pilosum.•Cremanthodium is in a lower position in the evolutionary advancement of Compositae.Fourteen compounds were isolated from Cremanthodium brunneo-pilosum, including two steroids (1 and 14), five sesquiterpenoids (2–6), six flavonoids (7–12) and one isoflavone (13). Graveolide (2) was obtained from a plant for the first time. 5,7-Dihydroxy-3,6,3′,4′-tetramethoxy-flavone (9), centaureidin (10) and tectoridin (13) have not been isolated from the family Compositae. The chemotaxonomic data support the relationship between this species and others in the family Compositae.

Two new eupodienone lignans from Gymnotheca chinensis

Co-reporter:Shi-Ji Xiao, Fang Chen, Li-Sheng Ding, Yan Zhou

Chinese Chemical Letters 2014 Volume 25(Issue 3) pp:463-464

Publication Date(Web):March 2014

DOI:10.1016/j.cclet.2013.11.053

Two new eupodienone lignans, named gymnothelignan T (1) and gymnothelignan U (2) were isolated from the whole plants of endemic medicinal plant of Gymnotheca chinensis (Saururaceae). The structures of the new compounds were elucidated by means of HRMS, 1D and 2D NMR. Compound 1 was tested for cytotoxic activity in HCT15, HCT116, A549, MCF-7 and HepG2 cells and exhibited no appreciable activity against these tested cell lines with IC50 values above 50 μmol/L.Two new eupodienone lignans, named gymnothelignan T (1) and gymnothelignan U (2) were isolated from the whole plants of endemic medicinal plant of Gymnotheca chinensis (Saururaceae). Compound 1 was tested for cytotoxic activity in HCT15, HCT116, A549, MCF-7 and HepG2 cells and exhibited no appreciable activity against these tested cell lines with IC50 values above 50 μmol/L.

Two novel norlignans from Gymnotheca chinensis

Co-reporter:Shi-Ji Xiao, Xin-Xiang Lei, Bing Xia, Hong-Ping Xiao, Da-Hai He, Dong-Mei Fang, Hua-Yi Qi, Fang Chen, Li-Sheng Ding, Yan Zhou

Tetrahedron Letters 2014 Volume 55(Issue 17) pp:2869-2871

Publication Date(Web):23 April 2014

DOI:10.1016/j.tetlet.2014.03.091

Two novel norlignans, gymnothedelignans A and B were isolated from the whole plants of Gymnotheca chinensis. These norlignans possess a rare 2/5 epoxy benzocycloheptanone skeleton. Their structures were established on the basis of 1D and 2D NMR spectral data analysis, and the absolute stereochemistry of gymnothedelignans A and B was further confirmed by single crystal X-ray diffraction analysis.

Two novel polycyclic spiro lignans from Gymnotheca involucrata

Co-reporter:Shi-Ji Xiao, Xin-Xiang Lei, Bing Xia, Dan-Qing Xu, Hong-Ping Xiao, Hong-Xi Xu, Fang Chen, Li-Sheng Ding, Yan Zhou

Tetrahedron Letters 2014 Volume 55(Issue 43) pp:5949-5951

Publication Date(Web):22 October 2014

DOI:10.1016/j.tetlet.2014.09.044

Two novel lignans, gymnothespirolignans A (1) and B (2), possessing a rare polycyclic spiro skeleton, were isolated from the endemic plant of Gymnotheca involucrata Pei. Their structures were determined by spectroscopic evidences and the absolute configurations were confirmed by single crystal X-ray diffraction analysis. Compounds 1 and 2 showed promising antiviral activities against RSV with an IC50 value of 31.87 and 17.51 μM, respectively.

Two new lignans from Gymnotheca chinensis Decne

Co-reporter:Shi-Ji Xiao, Yuan-Zhi Lao, Fang Chen, Hong-Xi Xu, Li-Sheng Ding, Yan Zhou

Phytochemistry Letters 2014 Volume 8() pp:38-40

Publication Date(Web):May 2014

DOI:10.1016/j.phytol.2014.01.007

•Two new lignans were isolated from Gymnotheca chinensis Decne.•Compound 1 exhibited moderate cytotoxicity against five human cancer cell lines.•Compound 2 exhibited weak cytotoxicity against the A549 cancer cell line.Two new lignans, gymnothelignans V (1) and W (2), were isolated from a methanol extraction of Gymnotheca chinensis Decne. Their structures were established on the basis of extensive 1D and 2D NMR spectroscopy. Compound 1 exhibited moderate cytotoxicity against the HCT116, HCT15, A549, MCF-7 and HepG2 cancer cell lines with IC50 values of 45.1 μM, 26.9 μM, 49.6 μM, 30.0 μM and 49.7 μM, respectively. Compound 2 exhibited weak cytotoxicity against the A549 cancer cell line with an IC50 value of 41.3 μM.

Further Biphenyl Lignans with a Tetrahydrofuran Moiety from Gymnotheca chinensis

Co-reporter:Shiji Xiao;Dahai He;Dongmei Fang;Fang Chen;Lisheng Ding;Yan Zhou

Helvetica Chimica Acta 2014 Volume 97( Issue 4) pp:499-506

Publication Date(Web):

DOI:10.1002/hlca.201300208

Abstract

Four new biphenyl lignans, 1–4, with a tetrahydrofuran moiety were isolated from the MeOH extract of the whole plant of Gymnotheca chinensis. Their chemical structures were established by means of spectroscopic analysis, including 1D and 2D NMR spectroscopy and comparison with previously reported data. Compounds 1–4 occur as mixtures of atropisomers as revealed by variable-temperature NMR experiments.

Terpenoids from Loxocalyx urticifolius

Co-reporter:Dahai He;Xuemin Xu;Yan Zhou;Wenlong Deng;Bin Xia;Lisheng Ding

Helvetica Chimica Acta 2012 Volume 95( Issue 7) pp:1136-1143

Publication Date(Web):

DOI:10.1002/hlca.201100478

Abstract

Two new diterpenoids, loxocalyxin A (1) and 13-epiloxocalyxin A (2), and two new sesquiterpenoids, loxocalyxins B and C (3 and 4, resp.), together with three known compounds, were isolated from the MeOH extract of the whole plant of Loxocalyx urticifolius Hemsl. The structures of the new compounds were established by means of spectroscopic analysis including one- and two-dimensional NMR spectroscopy. All new structures were confirmed by X-ray crystallographic analysis. Their absolute configurations were established.

A New Dimeric Iridal Triterpenoid from Belamcanda chinensis with Significant Molluscicide Activity

Co-reporter:Zhi-Jun Song, Xue-Min Xu, Wen-Long Deng, Shu-Lin Peng, Li-Sheng Ding, and Han-Hong Xu

Organic Letters 2011 Volume 13(Issue 3) pp:462-465

Publication Date(Web):December 21, 2010

DOI:10.1021/ol102796k

An unprecedented dimeric triterpenoid, designated dibelamcandal A, with a six-membered ring linking two iridal type triterpenoid nuclei, was isolated from the rhizome of Belamcanda chinensis. Its structure was determined by extensive spectroscopic measurements, including IR, ESI-MS, HR-ESI-MS, and 1D and 2D NMR. It demonstrated significant molluscicide activity against Pomacea canaliculata.

New Eremophilenolides from Senecio dianthus

Co-reporter:Yan-Hui Li;Yan Zhou;Gesang Suolang;Ciren Bianba;Hui Feng

Helvetica Chimica Acta 2011 Volume 94( Issue 3) pp:474-480

Publication Date(Web):

DOI:10.1002/hlca.201000237

Abstract

From the aerial parts of Senecio dianthus, four new eremophilenolides (1–4, resp.) and one new eremophilenolide alkaloid (5), of the relatively uncommon eremophilenoid-type sesquiterpenoid lactones, were isolated together with three known sesquiterpenoid lactones, 10β-hydroxyeremophil-7(11)-en-12,8α-olide (6), 8β,10β-dihydroxyeremophil-7(11)-en-12,8α-olide (7), and 10α-hydroxy-1-oxoeremophila-7(11),8(9)-dien-12,8-olide (8). On the basis of IR, MS, and NMR data, particularly 2D-NMR analyses, the structures of the new compounds were established as: 2β-(angeloyloxy)-10β-hydroxyeremophil-7(11)-en-12,8α-olide (1), 6β-(angeloyloxy)-10β-hydroxyeremophil-7(11)-en-12,8α-olide (2), 2β-(angeloyloxy)-8β,10β-dihydroxyeremophil-7(11)-en-12,8α-olide (3), 2β-(angeloyloxy)-8α-hydroxyeremophila-7(11),9(10)-dien-12,8β-olide (4), and 8β-amino-10β-hydroxyeremophil-7(11)-en-12,8α-olide (5). In addition, the relative configuration of 1 was corroborated by X-ray diffraction analysis.

Discrimination of the seeds of Notopterygium incisum and Notopterygium franchetii by validated HPLC-DAD–ESI-MS method and principal component analysis

Co-reporter:Kaijie Xu, Shunyuan Jiang, Yan Zhou, Yanxia Zhang, Bing Xia, Xuemin Xu, Yi Zhou, Yufei Li, Mingkui Wang, Lisheng Ding

Journal of Pharmaceutical and Biomedical Analysis 2011 56(5) pp: 1089-1093

Publication Date(Web):

DOI:10.1016/j.jpba.2011.07.034

A new ent-labdane diterpenoid from Andrographis paniculata

Co-reporter:Qiong Yu Zou, Na Li, Chun Dan, Wen Long Deng, Shu Lin Peng, Li Sheng Ding

Chinese Chemical Letters 2010 Volume 21(Issue 9) pp:1091-1093

Publication Date(Web):September 2010

DOI:10.1016/j.cclet.2010.05.002

A new ent-labdane diterpenoid, 19-O-β-d-glucopyranosyl-ent-labda-8(17),13-dien-15,16,19-triol, together with six known ent-labdane diterpenoids, was isolated from the aerial parts of Andrographis paniculata. The structure of the new compound was elucidated by extensive spectral analysis.

Chemical Constituents from the Aerial Parts of Artemisia minor

Co-reporter:Zhi-Zhou He, Ju-Fang Yan, Zhi-Jun Song, Fei Ye, Xun Liao, Shu-Lin Peng and Li-Sheng Ding

Journal of Natural Products 2009 Volume 72(Issue 6) pp:1198-1201

Publication Date(Web):May 28, 2009

DOI:10.1021/np800643n

Four new compounds including three bicoumarins, arteminorins A−C (1−3), and one neolignan, arteminorin D (4), together with 31 known ones were isolated from the aerial parts of Artemisia minor. Their structures were established on the basis of spectroscopic data and comparison with those of the related known compounds. Ethyl caffeate (27) showed in vitro cytotoxicity against the HepG2 cancer cell line. Arteminorin C (3) and luteolin (19) showed inhibitory activity on xanthine oxidase (XOD), and caffeic acid (28) exhibited inhibitory activity on protein tyrosine phosphatase 1B (PTP1B).

Chemical constituents of the whole plants of Saussurea medusa

Co-reporter:Zhuoma Dawa;Yang Bai;Yan Zhou;Suolang Gesang;Ping A

Journal of Natural Medicines 2009 Volume 63( Issue 3) pp:327-330

Publication Date(Web):2009 July

DOI:10.1007/s11418-009-0320-1

The chemical constituents of the traditional Tibetan medicine of Saussurea medusa Maxim. (Compositae) were investigated and a new flavonoid glucoside, together with 14 known compounds, was isolated. The structure of the new compound was established as 6″-O-crotonoylhomoplantaginin by using one- and two-dimensional nuclear magnetic resonance spectroscopy and mass spectrometry analyses.

Analysis of caged xanthones from the resin of Garcinia hanburyi using ultra-performance liquid chromatography/electrospray ionization quadrupole time-of-flight tandem mass spectrometry

Co-reporter:Yan Zhou, Xin Liu, Jing Yang, Quan-Bin Han, Jing-Zheng Song, Song-Lin Li, Chun-Feng Qiao, Li-Sheng Ding, Hong-Xi Xu

Analytica Chimica Acta 2008 Volume 629(1–2) pp:104-118

Publication Date(Web):23 November 2008

DOI:10.1016/j.aca.2008.09.044

On-line ultra high-performance liquid chromatography (UHPLC) coupled with electrospray quadrupole time-of-flight tandem mass spectrometry (ESI–QTOF–MS/MS/MS) has been developed for the analysis of a series of caged xanthones in the resin of Garcinia hanburyi. The fragmentation of protonated molecular ions for 12 known cadged xanthones was carried out using low-energy collision-induced electrospray ionization tandem mass spectrometry. It was found that Retro-Diels-Alder rearrangement occurred in the CID processes and produced the characteristic fragment ions, which are especially valuable for the identification of this class of xanthones. The fragmentation differential between some cis-, trans-isomers was uncovered. Computation methods were utilized to rationalize the observed MS behaviors. On-line UHPLC-ESI-MS/MS/MS method has proved to be rapid and efficient in that within 6 min, 15 caged scaffold xanthones, including three pairs of epimers and four pairs of isomers in gamboges, were effectively separated and identified. Among them, two known, namely isogambogenin (13) and isomorellinol (14) and one likely new caged Garcinia xanthones from the Garcinia hanburyi were tentatively characterized based on the tandem mass spectra of known ones.

Two new isoflavonoids from the rhizomes of Belamcanda chinensis

Co-reporter:Zhi Jun Song, Fan Luo, Yan Zhou, Bin Ru Bai, Shu Lin Peng, Li Sheng Ding

Chinese Chemical Letters 2007 Volume 18(Issue 6) pp:694-696

Publication Date(Web):June 2007

DOI:10.1016/j.cclet.2007.04.004

Two new isoflavonoids, 6-methoxy-5,7,8,4′-tetrahydryoxyisoflavone (1) and 4′-methoxy -5,6-dihydroxyisoflavone-7-O-β-d-glucopyranoside (2), were isolated from the rhizomes of Belamcanda chinensis (L.) DC. Their structures were elucidated by extensive spectroscopic evidence including 1D NMR, 2D NMR, MS and IR spectra.

Secoiridoid Glycosides from Swertia mileensis

Co-reporter:Ying-Tong Di;Yan Zhou;Suolang Gesang;Shu-Lin Peng

Helvetica Chimica Acta 2006 Volume 89(Issue 1) pp:94-102

Publication Date(Web):19 JAN 2006

DOI:10.1002/hlca.200690016

From the MeOH extract of the aerial parts of Swertia mileensis, four new secoiridoid glycosides were isolated, 4′-O-[(E)-caffeoyl]swertiamarin (1), 4′-O-[(Z)-coumaroyl]swertiamarin (7), 6′-O-[(E)-coumaroyl]swertiamarin (8), and 6′-O-[(Z)-coumaroyl]swertiamarin (9), together with five known compounds. Their structures were elucidated by NMR spectroscopy and tandem mass spectrometry. Detailed HPLC/MS analyses and MS/MS fragmentation pathways are discussed for the identification of the swertiamarin-derived (E)/(Z) isomers 6/7 and 8/9.

Four New Pregnane Glycosides from the Stems of Marsdenia tenacissima

Co-reporter:Qi-Fa Li;Kai-Bei Yu;Xiao-Ling Wang;Yan Zhou;Shu-Lin Peng

Helvetica Chimica Acta 2006 Volume 89(Issue 11) pp:2738-2744

Publication Date(Web):21 NOV 2006

DOI:10.1002/hlca.200690245

Four new pregnane glycosides, tenacigenosides A–D (1–4), along with six known pregnane aglycones and five known pregnane glycosides, were isolated from the stems of Marsdenia tenacissima (Roxb.) Wight et Arn. (Asclepiadaceae). The chemical structures of the new compounds were established by 1D- and 2D-NMR as well as HR-MS analyses. The absolute configuration of 1 was confirmed by X-ray crystallography.

Chemical fingerprint analysis of rhizomes of Gymnadenia conopsea by HPLC–DAD–MSn

Co-reporter:Min Cai, Yan Zhou, Suolang Gesang, Ciren Bianba, Li-Sheng Ding

Journal of Chromatography B 2006 Volume 844(Issue 2) pp:301-307

Publication Date(Web):5 December 2006

DOI:10.1016/j.jchromb.2006.07.043

A high-performance liquid chromatography–diode array detection–tandem mass spectrometry (HPLC–DAD–MSn) method has been firstly developed for chemical fingerprint analysis of rhizomes of Gymnadenia conopsea R. Br. and rapid identification of major compounds in the fingerprints. Comparing the UV and MS spectra with those of reference compounds, seven main peaks in the fingerprints were identified as adenosine (1), 4-hydroxybenzyl alcohol (2), 4-hydroxybenzyl aldehyde (3), dactylorhin B (4), loroglossin (5), dactylorhin A (6) and militarine (7). Compounds 4–7 were succinate derivative esters and firstly discovered from this species. The Computer Aided Similarity Evaluation System (CASES) for chromatographic fingerprint of traditional Chinese medicine was employed to evaluate the similarities of 10 samples of the rhizomes of G. conopsea collected from Sichuan, Qinghai and Hebei provinces, Tibet autonomous region of China, and Nepal. These samples from different sources had similar chemical fingerprints. This method is specific and may serve for quality identification and comprehensive evaluation of this traditional Tibetan remedy.

Chemical Constituents of Acanthochlamys bracteata

Co-reporter:Li Bang-Jing;Gao Bao-Chun;Peng Shu-Lin;Liao Xun;Ding Li-Sheng

Chinese Journal of Chemistry 2005 Volume 23(Issue 7) pp:

Publication Date(Web):16 AUG 2005

DOI:10.1002/cjoc.200590933

A novel nortriterpene, acanthochlamic acid (6), along with 18 known compounds has been isolated from the whole plants of Acanthochlamys bracteata P. C. Kao, a single species in family Acanthochlamydaceae which is endemic to the southwest of China. The structure of the novel nortriterpene was elucidated as 3,4-seco-3-nor-lup-4(23),20(29)-dien-2,28-dioic acid by spectroscopic techniques including 1D and 2D NMR spectroscopy and confirmed by X-ray crystallography.

Chemical Constituents from the Roots of Schnabelia tetradonta

Co-reporter:Hui Dou;Xun Liao;Shu-Lin Peng;Yuan-Jiang Pan

Helvetica Chimica Acta 2003 Volume 86(Issue 8) pp:2797-2804

Publication Date(Web):28 AUG 2003

DOI:10.1002/hlca.200390230

The new rearranged-abietane diterpene 1, the four new triterpenoids 2–5, and the new aminoethylphenyl oligoglycoside 6, besides 19 known compounds, were isolated from the roots of Schnabelia tetradonta, a Chinese endemic herb. The structures of the new compounds were elucidated on the basis of spectroscopic evidence as 12,17-epoxy-11,14,16-trihydroxy-17(1516)-abeo-abieta-8,11,13,15-tetraen-7-one (1), 21β-(β-D-glucopyranosyloxy)-2α,3α-dihydroxyolean-12-en-28-oic acid (2), 2β,3β,16β-trihydroxy-15-oxo-28-norolean-12-en-23-oic acid (3), 3β-[(4-O-acetyl-β-D-glucopyranuronosyl)oxy]-2β,16β-dihydroxy-28-norolean-15-oxo-12-en-23-oic acid (4), 3β-[(4-O-acetyl-6-O-methyl-β-D-glucopyranuronosyl)oxy]-2β,16β-dihydroxy-15-oxo-28-norolean-12-en-23-oic acid (5), and 4-[2-(acetylamino)ethyl]phenyl O-6-O-[(Z)-p-methoxycinnamoyl]-β-D-glucopyranosyl-(12)]-O-[β-D-glucopyranosyl-(13)]-4-O-acetyl-α-L-rhamnopyranoside (6), respectively.

Poly(oxy-1,2-ethanediyl),a-(1-oxo-2-propen-1-yl)-w-methoxy-

CAS:32171-39-4

Poly(oxy-1,2-ethanediyl),a-(1-oxo-2-propen-1-yl)-w-methoxy-

CAS:7689-03-4

(+)-CAMPTOTHECIN

CAS:330196-64-0

CAS:329736-03-0

7-Hydroxy-2,2-dimethyl-3a,6,7,7a-tetrahydrobenzo[d][1,3]dioxole-5-carboxylic acid

CAS:183075-03-8

7-Hydroxy-2,2-dimethyl-3a,6,7,7a-tetrahydrobenzo[d][1,3]dioxole-5-carboxylic acid

CAS:167775-54-4

3-Epidehydrotumulosic acid

Poly(oxy-1,2-ethanediyl), α-(ferrocenylcarbonyl)-ω-methoxy-

CAS:159397-33-8

Poly(oxy-1,2-ethanediyl), α-(ferrocenylcarbonyl)-ω-methoxy-

2-(3',4'-dihydroxyphenyl)-5,7-dihydroxy-3-beta-D-arabinosyl-4H-chromen-4-one

CAS:157379-63-0

2-(3',4'-dihydroxyphenyl)-5,7-dihydroxy-3-beta-D-arabinosyl-4H-chromen-4-one

(2S)-2-[(3aS,13S,16aR)-2,13-dihydroxy-3a,6,10,14-tetramethyl-3-oxo-3,3a,4,7,8,11,12,13,16,16a-decahydrocyclopenta[15]annulen-1-yl]propyl acetate

CAS:152469-17-5

(2S)-2-[(3aS,13S,16aR)-2,13-dihydroxy-3a,6,10,14-tetramethyl-3-oxo-3,3a,4,7,8,11,12,13,16,16a-decahydrocyclopenta[15]annulen-1-yl]propyl acetate

1(3aH)-Cyclopentacyclopentadecenone,4,7,8,9,12,13,16,16a-octahydro-2,7-dihydroxy-3-[(1S)-2-hydroxy-1-methylethyl]-6,10,14,16a-tetramethyl-,(3aR,5E,7S,10E,14E,16aS)-

CAS:146436-22-8

1(3aH)-Cyclopentacyclopentadecenone,4,7,8,9,12,13,16,16a-octahydro-2,7-dihydroxy-3-[(1S)-2-hydroxy-1-methylethyl]-6,10,14,16a-tetramethyl-,(3aR,5E,7S,10E,14E,16aS)-