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1
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Zhang D, Wang D, Li Z, Guo D, Li W. New cembranoids from the leaves and twigs of Croton yanhuii Y. T. Chang. Nat Prod Res 2024; 38:2380-2386. [PMID: 36762720 DOI: 10.1080/14786419.2023.2175357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 01/20/2023] [Accepted: 01/23/2023] [Indexed: 02/11/2023]
Abstract
Crotonyanes A (1) and B (2), two new cembranoids were isolated from the leaves and twigs of Croton yanhuii Y. T. Chang. Their structures were elucidated by extensive spectroscopic analyses and quantum chemical calculations. Bioassays verified that compound 1 exhibited an inhibitory effect on nitric oxide (NO) production in RAW 264.7 cells, with an IC50 value of 30.6 ± 4.3 µM.
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Affiliation(s)
- Daidi Zhang
- Zhongshan Institute for Drug Discovery, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Zhongshan, China
| | - Didi Wang
- Zhongshan Institute for Drug Discovery, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Zhongshan, China
- School of Pharmacy, Guizhou Medical University, Guiyang, China
| | - Zhenwei Li
- Zhongshan Institute for Drug Discovery, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Zhongshan, China
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Dean Guo
- Zhongshan Institute for Drug Discovery, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Zhongshan, China
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Wei Li
- Zhongshan Institute for Drug Discovery, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Zhongshan, China
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
- University of Chinese Academy of Sciences, Beijing, China
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2
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Li S, Liang F, Huang D, Wu H, Tan X, Ma J, Wei C, Wang S, Huang Z, Yang G, He X, Yang J. Diterpenoids from the Aerial Parts of Isodon serra with Selective Cytotoxic Activity. Molecules 2024; 29:2733. [PMID: 38930799 PMCID: PMC11207078 DOI: 10.3390/molecules29122733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2024] [Revised: 05/27/2024] [Accepted: 05/31/2024] [Indexed: 06/28/2024] Open
Abstract
Four new diterpenoids, isodosins A-D (1-4), together with nine known compounds (5-13) were isolated and identified from the aerial parts of Isodon serra (Maxim.) Hara. The structures of the new diterpenoids were elucidated based on the analysis of HR-ESI-MS data, 1D/2D-NMR-spectroscopic data, and electronic circular dichroism (ECD) calculations. Cytotoxicities of compounds 2, 3, 5, 6, and 9 against the HepG2 and H1975 cell lines were evaluated with the MTT assay. As a result, compounds 2, 3, and 6 revealed higher levels of cytotoxicity against HepG2 cells than against H1975 cells. Moreover, compund 6 demonstrated the most efficacy in inhibiting the proliferation of HepG2 cells, with an IC50 value of 41.13 ± 3.49 μM. This effect was achieved by inducing apoptosis in a dose-dependent manner. Furthermore, the relationships between the structures and activities of these compounds are briefly discussed.
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Affiliation(s)
- Siqin Li
- School of Traditional Chinese Materia Medica, Guangdong Pharmaceutical University, Guangzhou 510006, China; (S.L.); (F.L.); (D.H.); (H.W.); (X.T.); (J.M.); (C.W.); (S.W.); (Z.H.)
| | - Fang Liang
- School of Traditional Chinese Materia Medica, Guangdong Pharmaceutical University, Guangzhou 510006, China; (S.L.); (F.L.); (D.H.); (H.W.); (X.T.); (J.M.); (C.W.); (S.W.); (Z.H.)
| | - Dongdong Huang
- School of Traditional Chinese Materia Medica, Guangdong Pharmaceutical University, Guangzhou 510006, China; (S.L.); (F.L.); (D.H.); (H.W.); (X.T.); (J.M.); (C.W.); (S.W.); (Z.H.)
| | - Huanling Wu
- School of Traditional Chinese Materia Medica, Guangdong Pharmaceutical University, Guangzhou 510006, China; (S.L.); (F.L.); (D.H.); (H.W.); (X.T.); (J.M.); (C.W.); (S.W.); (Z.H.)
| | - Xiaohua Tan
- School of Traditional Chinese Materia Medica, Guangdong Pharmaceutical University, Guangzhou 510006, China; (S.L.); (F.L.); (D.H.); (H.W.); (X.T.); (J.M.); (C.W.); (S.W.); (Z.H.)
| | - Jiang Ma
- School of Traditional Chinese Materia Medica, Guangdong Pharmaceutical University, Guangzhou 510006, China; (S.L.); (F.L.); (D.H.); (H.W.); (X.T.); (J.M.); (C.W.); (S.W.); (Z.H.)
| | - Caihong Wei
- School of Traditional Chinese Materia Medica, Guangdong Pharmaceutical University, Guangzhou 510006, China; (S.L.); (F.L.); (D.H.); (H.W.); (X.T.); (J.M.); (C.W.); (S.W.); (Z.H.)
| | - Shixiong Wang
- School of Traditional Chinese Materia Medica, Guangdong Pharmaceutical University, Guangzhou 510006, China; (S.L.); (F.L.); (D.H.); (H.W.); (X.T.); (J.M.); (C.W.); (S.W.); (Z.H.)
| | - Ziying Huang
- School of Traditional Chinese Materia Medica, Guangdong Pharmaceutical University, Guangzhou 510006, China; (S.L.); (F.L.); (D.H.); (H.W.); (X.T.); (J.M.); (C.W.); (S.W.); (Z.H.)
| | - Guang Yang
- China Academy of Chinese·Medical Sciences, Beijing 100700, China;
| | - Xin He
- School of Traditional Chinese Materia Medica, Guangdong Pharmaceutical University, Guangzhou 510006, China; (S.L.); (F.L.); (D.H.); (H.W.); (X.T.); (J.M.); (C.W.); (S.W.); (Z.H.)
| | - Ji Yang
- School of Traditional Chinese Materia Medica, Guangdong Pharmaceutical University, Guangzhou 510006, China; (S.L.); (F.L.); (D.H.); (H.W.); (X.T.); (J.M.); (C.W.); (S.W.); (Z.H.)
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3
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Watanabe A, Hikone Y, Nagatomo M, Inoue M. Conversion of Phorbol into Des-D-Ring Tricycle and Crotonianoid B via Peroxidation Reaction. Org Lett 2024; 26:4335-4339. [PMID: 38738923 DOI: 10.1021/acs.orglett.4c01363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/14/2024]
Abstract
Phorbol (1) has a tetracyclic ABCD-ring and is readily isolable from a natural source. We previously synthesized 1 and 16 structurally related natural products using common ABC-ring intermediate 2. Here we report a new synthetic route to 2 using 1 as a starting material. Key features of the synthesis are chemoselective removal of the D-ring via cyclopropane opening, peroxidation, and retro-aldol reactions. The high utility of the peroxidation was further demonstrated in the first synthesis of crotonianoid B (9).
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Affiliation(s)
- Ayumu Watanabe
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Yuto Hikone
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Masanori Nagatomo
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Masayuki Inoue
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
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4
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Liu YF, Yu SS. Survey of natural products reported by Asian research groups in 2022. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2024; 26:399-414. [PMID: 38151899 DOI: 10.1080/10286020.2023.2288939] [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: 07/30/2023] [Accepted: 11/23/2023] [Indexed: 12/29/2023]
Abstract
The new natural products reported in 2022 in peer-reviewed articles in journals with good reputations were reviewed and analyzed. The advances made by Asian research groups in the field of natural products chemistry in 2022 were summarized. Compounds with unique structural features and/or promising bioactivities originating from Asian natural sources were discussed based on their structural classification.
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Affiliation(s)
- Yan-Fei Liu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Shi-Shan Yu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
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5
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Wu J, Ye Z, Liao C, Li R, Chen X. Terpenoids from the Roots of Stellera chamaejasme (L.) and Their Bioactivities. Molecules 2023; 28:7726. [PMID: 38067457 PMCID: PMC10707970 DOI: 10.3390/molecules28237726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 11/06/2023] [Accepted: 11/17/2023] [Indexed: 12/18/2023] Open
Abstract
An undescribed diterpene, stellerterpenoid A (1), and two undescribed sesquiterpenoids, stellerterpenoids B and C (2-3), together with six known compounds, prostratin (4) stelleraguaianone B (5), chamaejasnoid A (6), auranticanol L (7), wikstronone C (8), and oleodaphnone (9), were isolated from the roots of Stellera chamaejasme L. Their structures were elucidated by extensive spectroscopic data (1D, 2D NMR, IR, UV, and HR-ESI-MS). The absolute configuration of 1-3 was elucidated based on ECD calculation. Among them, stellerterpenoid A was a rare 13, 14-seco nortigliane diterpenoid and stellerterpenoid B was a guaiacane-type sesquiterpenoid with an unusual 1, 2-diketone moiety. The known stelleraguaianone B (5) exhibited moderate activity for suppressing NO production in lipopolysaccharide (LPS)-treated RAW 264.7 macrophages cells with an IC50 value of 24.76 ± 0.4 μM. None of the compounds showed anti-influenza virus or anti-tumor activity in vitro.
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Affiliation(s)
- Juan Wu
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China; (J.W.); (Z.Y.); (C.L.)
| | - Zhujun Ye
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China; (J.W.); (Z.Y.); (C.L.)
| | - Caicen Liao
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China; (J.W.); (Z.Y.); (C.L.)
| | - Rongtao Li
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China; (J.W.); (Z.Y.); (C.L.)
- Key Laboratory of New Drugs (Traditional Chinese Medicine) for Respiratory Viral Diseases of Yunnan Province, Kunming 650500, China
| | - Xuanqin Chen
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China; (J.W.); (Z.Y.); (C.L.)
- Key Laboratory of New Drugs (Traditional Chinese Medicine) for Respiratory Viral Diseases of Yunnan Province, Kunming 650500, China
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6
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Wei X, Huang JL, Gao HH, Yuan FY, Tang GH, Yin S. New halimane and clerodane diterpenoids from Croton cnidophyllus. NATURAL PRODUCTS AND BIOPROSPECTING 2023; 13:21. [PMID: 37410272 DOI: 10.1007/s13659-023-00386-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Accepted: 06/28/2023] [Indexed: 07/07/2023]
Abstract
Three new halimane furanoditerpenoids (1-3) and three new clerodane furanoditerpenoids (4-6), along with seven known terpenoids including four pimarane diterpenoids (7-10) and three norisoprenoids (11-13) were isolated from the 95% EtOH extracts of the plants of Croton cnidophyllus. The 2D structures including absolute configuration of new furanoditerpenoids (1-6) were elucidated by analysis of their HRMS and NMR data as well as comparison of experimental and calculated ECD curves. Bioassay revealed that two compounds (8 and 9) possessed certain inhibitory effects against NO production stimulated by LPS, with IC50 values of 19.00 ± 1.76 and 21.61 ± 1.11 μM, respectively.
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Affiliation(s)
- Xun Wei
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, 510006, People's Republic of China
| | - Jia-Luo Huang
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, 510006, People's Republic of China
| | - Hua-Hua Gao
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, 510006, People's Republic of China
| | - Fang-Yu Yuan
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, 510006, People's Republic of China
| | - Gui-Hua Tang
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, 510006, People's Republic of China.
| | - Sheng Yin
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, 510006, People's Republic of China.
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7
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Liang JJ, Lv TM, Xu ZY, Du NN, Lin B, Huang XX, Song SJ. Two new iridoids and triterpenoid analogues from the leaves of Viburnum chingii and their anti-acetylcholinesterase activity. Fitoterapia 2023; 165:105400. [PMID: 36572118 DOI: 10.1016/j.fitote.2022.105400] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 12/19/2022] [Accepted: 12/22/2022] [Indexed: 12/24/2022]
Abstract
Two undescribed split-ring iridoids (1-2) with six known triterpenes (3-8) and one steride (9) were isolated from the Viburnum chingii. Compound 2 possessed an unprecedented split-ring iridoid skeleton formed by electrocyclic reaction and split ring. The structures and absolute configurations of the new iridoids were established by NMR, HRESIMS, and ECD calculations. All the isolated compounds were tested for AChE inhibitory activity. Biologically, 1, 2, 3, 4, and 7 displayed significant AChE effects compared to the positive control donepezil, and have also been subjected to molecular docking studies.
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Affiliation(s)
- Jing-Jing Liang
- Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development, Liaoning Province; Engineering Research Center of Natural Medicine Active Molecule Research & Development, Liaoning Province; Key Laboratory of Natural Bioactive Compounds Discovery & Modification, Shenyang; School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, China
| | - Tian-Ming Lv
- Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development, Liaoning Province; Engineering Research Center of Natural Medicine Active Molecule Research & Development, Liaoning Province; Key Laboratory of Natural Bioactive Compounds Discovery & Modification, Shenyang; School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, China
| | - Zhi-Yong Xu
- Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development, Liaoning Province; Engineering Research Center of Natural Medicine Active Molecule Research & Development, Liaoning Province; Key Laboratory of Natural Bioactive Compounds Discovery & Modification, Shenyang; School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, China
| | - Ning-Ning Du
- Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development, Liaoning Province; Engineering Research Center of Natural Medicine Active Molecule Research & Development, Liaoning Province; Key Laboratory of Natural Bioactive Compounds Discovery & Modification, Shenyang; School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, China
| | - Bin Lin
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Xiao-Xiao Huang
- Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development, Liaoning Province; Engineering Research Center of Natural Medicine Active Molecule Research & Development, Liaoning Province; Key Laboratory of Natural Bioactive Compounds Discovery & Modification, Shenyang; School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, China
| | - Shao-Jiang Song
- Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development, Liaoning Province; Engineering Research Center of Natural Medicine Active Molecule Research & Development, Liaoning Province; Key Laboratory of Natural Bioactive Compounds Discovery & Modification, Shenyang; School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, China.
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