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Zhu YX, Wang SY, Yang CS, Zhang ZX, Zhang HP, Chai LS, Su GZ, Li Y. Pseudoamaolide P, a 1,2:3,4:9,10:9,19-tetraseco-cycloartane triterpene spiroketal lactone from seeds of Pseudolarix amabilis. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2024; 26:195-203. [PMID: 38193216 DOI: 10.1080/10286020.2023.2286994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Accepted: 11/19/2023] [Indexed: 01/10/2024]
Abstract
A 1,2:3,4:9,10:9,19-tetraseco-cycloartane triterpene spiroketal lactone, pseudoamaolide P (1), two new labdane-type diterpenoids, pseudoamains A and B (2-3), and four known cembrane-type diterpenoids (4-7) were isolated from the seeds of Pseudolarix amabilis. The structures of these compounds were elucidated by spectroscopic analyses, including HRESIMS, 1D-, and 2D-NMR. The anti-inflammatory activities of the compounds were evaluated by suppressing the transcription of the NF-κB-dependent reporter gene in LPS-induced 293 T/NF-κB-luc cells. All compounds do not show potent activity.
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Affiliation(s)
- Yu-Xun Zhu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, China
| | - Shang-Yi Wang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, China
| | - Cheng-Shuo Yang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, China
| | - Zhao-Xin Zhang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, China
| | - Huan-Ping Zhang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, China
| | - Li-Sha Chai
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, China
| | - Guo-Zhu Su
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, China
| | - Yong Li
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, China
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Lu M, Chen K, Wu T, Cai H. Electrochemical Decarboxylative Alkoxy-alkoxycarbonylation of Alkenes. Org Lett 2024; 26:188-192. [PMID: 38127651 DOI: 10.1021/acs.orglett.3c03816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2023]
Abstract
A method is presented for decarboxylative alkoxy-alkoxycarbonylation of various alkenes with alcohols by electrochemical anodic oxidation of monopotassium ethyloxalate salts with good functional group compatibility. The reaction involves anodic oxidation to form an acyl radical, followed by addition to an olefin to yield a new alkyl radical, which is anodically oxidized to a carbon cation and captured by alcohols to afford β-alkoxyalkanoates. Adding catalytic amounts of ammonium iodide enhanced the efficiency of the reactions.
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Affiliation(s)
- Meiqun Lu
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang, Jiangxi 330031, P. R. China
| | - Kailun Chen
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang, Jiangxi 330031, P. R. China
| | - Tao Wu
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang, Jiangxi 330031, P. R. China
| | - Hu Cai
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang, Jiangxi 330031, P. R. China
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Saeed S, Zahoor AF, Ahmad S, Akhtar R, Sikandar S. Reformatsky reaction as a key step in the synthesis of natural products: A review. SYNTHETIC COMMUN 2021. [DOI: 10.1080/00397911.2021.2008447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Sadaf Saeed
- Department of Chemistry, Government College University Faisalabad, Faisalabad, Pakistan
| | - Ameer Fawad Zahoor
- Department of Chemistry, Government College University Faisalabad, Faisalabad, Pakistan
| | - Sajjad Ahmad
- Department of Chemistry, University of Engineering and Technology Lahore, Faisalabad, Pakistan
| | - Rabia Akhtar
- Department of Chemistry, Government College University Faisalabad, Faisalabad, Pakistan
| | - Sana Sikandar
- Department of Chemistry, Government College University Faisalabad, Faisalabad, Pakistan
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4
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Xiao SJ, Li B, Huang ZR, Yuan WL, Ye J, Li HL, Xu XK, Shen YH, Zhang WD. 3,4-Secocycloartane Triterpenoids from the Cones of Pseudolarix amabilis. NATURAL PRODUCTS AND BIOPROSPECTING 2021; 11:119-126. [PMID: 33389669 PMCID: PMC7933301 DOI: 10.1007/s13659-020-00285-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Accepted: 11/09/2020] [Indexed: 06/12/2023]
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 of P. arixamabilis.
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Affiliation(s)
- Si-Jia Xiao
- Department of Phytochemistry, School of Pharmacy, Naval Medical University (Second Military Medical University), Shanghai, 200433, China
| | - Bo Li
- Department of Phytochemistry, School of Pharmacy, Naval Medical University (Second Military Medical University), Shanghai, 200433, China
- State Key Laboratory of New Drug and Pharmaceutical Process, Shanghai Institute of Pharmaceutical Industry, China State Institute of Pharmaceutical Industry, Shanghai, 201203, China
| | - Zheng-Rui Huang
- Department of Applied Chemistry, Xi'an University of Technology, Xi'an, 710048, China
| | - Wen-Lin Yuan
- Department of Phytochemistry, School of Pharmacy, Naval Medical University (Second Military Medical University), Shanghai, 200433, China
| | - Ji Ye
- Department of Phytochemistry, School of Pharmacy, Naval Medical University (Second Military Medical University), Shanghai, 200433, China
| | - Hui-Liang Li
- Department of Phytochemistry, School of Pharmacy, Naval Medical University (Second Military Medical University), Shanghai, 200433, China
| | - Xi-Ke Xu
- Department of Phytochemistry, School of Pharmacy, Naval Medical University (Second Military Medical University), Shanghai, 200433, China
| | - Yun-Heng Shen
- Department of Phytochemistry, School of Pharmacy, Naval Medical University (Second Military Medical University), Shanghai, 200433, China.
| | - Wei-Dong Zhang
- Department of Phytochemistry, School of Pharmacy, Naval Medical University (Second Military Medical University), Shanghai, 200433, China.
- State Key Laboratory of New Drug and Pharmaceutical Process, Shanghai Institute of Pharmaceutical Industry, China State Institute of Pharmaceutical Industry, Shanghai, 201203, China.
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5
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Zhao XT, Yu MH, Su SY, Shi XL, Lei C, Hou AJ. Cycloartane triterpenoids from Pseudolarix amabilis and their antiviral activity. PHYTOCHEMISTRY 2020; 171:112229. [PMID: 31901474 DOI: 10.1016/j.phytochem.2019.112229] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2019] [Revised: 11/29/2019] [Accepted: 12/17/2019] [Indexed: 05/23/2023]
Abstract
Seven undescribed cycloartane triterpenoids, pseudolarnoids A-G, together with ten known ones, were isolated from the seeds of Pseudolarix amabilis (J. Nelson) Rehder. Their structures were elucidated on the basis of spectroscopic analysis, X-ray crystallography, and ECD data. Pseudolarnoids A-C are cycloartane triterpenoids with a unique 16S, 23R-spirolactone moiety. Pseudolarnoids F, G, and pseudolarolide C demonstrated potent antiviral effects on HSV-1 in vitro.
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Affiliation(s)
- Xiao-Tong Zhao
- School of Pharmacy, Fudan University, Shanghai, 201203, China
| | - Mei-Hua Yu
- School of Pharmacy, Fudan University, Shanghai, 201203, China
| | - Shi-Yun Su
- School of Pharmacy, Fudan University, Shanghai, 201203, China
| | - Xun-Long Shi
- School of Pharmacy, Fudan University, Shanghai, 201203, China
| | - Chun Lei
- School of Pharmacy, Fudan University, Shanghai, 201203, China.
| | - Ai-Jun Hou
- School of Pharmacy, Fudan University, Shanghai, 201203, China.
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Abstract
Covering: 2013. Previous review: Nat. Prod. Rep., 2015, 29, 1028-1065This review covers the isolation and structure determination of triterpenoids reported during 2013 including squalene derivatives, lanostanes, holostanes, cycloartanes, cucurbitanes, dammaranes, euphanes, tirucallanes, tetranortriterpenoids, quassinoids, lupanes, oleananes, friedelanes, ursanes, hopanes, serratanes, isomalabaricanes and saponins; 350 references are cited.
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Affiliation(s)
- Robert A Hill
- School of Chemistry, Glasgow University, Glasgow, G12 8QQ, UK.
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Tian X, Yang N, Li B, Zhang J, Xu X, Yue R, Li H, Chen L, Shen Y, Zhang W. Inhibition of HL-60 cell growth via cell cycle arrest and apoptosis induction by a cycloartane-labdane heterodimer from Pseudolarix amabilis. Org Biomol Chem 2016; 14:2618-24. [PMID: 26906292 DOI: 10.1039/c5ob02661j] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Pseudolaridimer C (), a rarely encountered cycloartane-labdane Diels-Alder adduct was isolated from the cones of Pseudolarix amabilis. The structure and absolute configuration of were established by comprehensive NMR and CD spectral analysis. The WST-8 assay indicated that time and dose dependently inhibited the proliferation of human leukemia cells HL-60 at 1-10 μM. DAPI and Annexin V-FITC/PI double staining method, and DNA ladder experiments all proved that had significant dose-dependent effects on HL-60 cell apoptosis. A further mechanism study indicated that the apoptosis was associated with the cell cycle arrest during the G2/M phase, and the activation of caspase-9, -3, -7, and poly-(ADP-ribose)-polymerase (PARP).
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Affiliation(s)
- Xinhui Tian
- Department of Phytochemistry, School of Pharmacy, Second Military Medical University, Shanghai 200433, P. R. China.
| | - Niao Yang
- Department of Phytochemistry, School of Pharmacy, Second Military Medical University, Shanghai 200433, P. R. China.
| | - Bo Li
- Innovative Research Center of Traditional Chinese Medicine, Shanghai Institute of Pharmaceutical Industry, Shanghai 201204, P. R. China
| | - Jianping Zhang
- Department of Phytochemistry, School of Pharmacy, Second Military Medical University, Shanghai 200433, P. R. China.
| | - Xike Xu
- Department of Phytochemistry, School of Pharmacy, Second Military Medical University, Shanghai 200433, P. R. China.
| | - Rongcai Yue
- Department of Phytochemistry, School of Pharmacy, Second Military Medical University, Shanghai 200433, P. R. China.
| | - Huiliang Li
- Department of Phytochemistry, School of Pharmacy, Second Military Medical University, Shanghai 200433, P. R. China.
| | - Liping Chen
- Department of Phytochemistry, School of Pharmacy, Second Military Medical University, Shanghai 200433, P. R. China.
| | - Yunheng Shen
- Department of Phytochemistry, School of Pharmacy, Second Military Medical University, Shanghai 200433, P. R. China.
| | - Weidong Zhang
- Department of Phytochemistry, School of Pharmacy, Second Military Medical University, Shanghai 200433, P. R. China. and Innovative Research Center of Traditional Chinese Medicine, Shanghai Institute of Pharmaceutical Industry, Shanghai 201204, P. R. China
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Oh MH, Lee JW, Jang SY, Lee DH. Synthesis of the Western Fragment of Pseudolarenone. B KOREAN CHEM SOC 2016. [DOI: 10.1002/bkcs.10869] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Moo Hyun Oh
- Department of Chemistry; Sogang University; Seoul Republic of Korea
| | - Jin Woo Lee
- Department of Chemistry; Sogang University; Seoul Republic of Korea
| | - Se Yun Jang
- Department of Chemistry; Sogang University; Seoul Republic of Korea
| | - Duck Hyung Lee
- Department of Chemistry; Sogang University; Seoul Republic of Korea
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