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Tu WC, Ding LF, Song LD, Li YJ, Yan RC, Wu Y, Feng WY, Wu XD. Structurally diverse diterpenoids from the seeds of Caesalpinia minax Hance and their bioactivities. PHYTOCHEMISTRY 2024; 225:114189. [PMID: 38905919 DOI: 10.1016/j.phytochem.2024.114189] [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: 12/15/2023] [Revised: 06/12/2024] [Accepted: 06/13/2024] [Indexed: 06/23/2024]
Abstract
Eight previously undescribed diterpenoids, caesamins A-H (1-8), were separated and identified from the seeds of Caesalpinia minax Hance. Their structures were characterized by extensive spectroscopic data and X-ray crystallographic analysis. Structurally, caesamin A (1) is the first cassane-type diterpenoid with a C23 carbon skeleton containing an unusual isopropyl. Caesamin F (6) represents the first example of cleistanthane diterpenoid from the genus Caesalpinia. Caesamins B (2) and F (6) exhibited inhibitory activity against LPS-induced nitric oxide production in RAW 264.7 macrophages with IC50 values of 45.67 ± 0.92 and 42.99 ± 0.24 μM, comparable to positive control 43.69 ± 2.62 μM of NG-Monomethyl-L-arginine. Furthermore, the chemotaxonomic significance of the isolates was discussed.
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Affiliation(s)
- Wen-Chao Tu
- Key Laboratory of Ethnic Medicine Resource Chemistry, State Ethnic Affairs Commission & Ministry of Education, Yunnan Minzu University, Kunming, 650504, China; School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, 650500, China
| | - Lin-Fen Ding
- School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, 650500, China; College of Modern Biomedical Industry, Kunming Medical University, Kunming, 650500, China
| | - Liu-Dong Song
- School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, 650500, China
| | - Yong-Jiao Li
- Key Laboratory of Ethnic Medicine Resource Chemistry, State Ethnic Affairs Commission & Ministry of Education, Yunnan Minzu University, Kunming, 650504, China
| | - Run-Cheng Yan
- Key Laboratory of Ethnic Medicine Resource Chemistry, State Ethnic Affairs Commission & Ministry of Education, Yunnan Minzu University, Kunming, 650504, China
| | - Yun Wu
- Key Laboratory of Ethnic Medicine Resource Chemistry, State Ethnic Affairs Commission & Ministry of Education, Yunnan Minzu University, Kunming, 650504, China
| | - Wei-Yang Feng
- School of Basic Medical Sciences, Kunming Medical University, Kunming, 650500, China.
| | - Xing-De Wu
- Key Laboratory of Ethnic Medicine Resource Chemistry, State Ethnic Affairs Commission & Ministry of Education, Yunnan Minzu University, Kunming, 650504, China.
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2
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Yan SJ, Huang SY, Xing JS, Cai YR, Ruan YP, Zhang PP. New cassane-type alkaloids and diterpenoids from the pericarps of Caesalpinia bonduc. Fitoterapia 2024; 173:105834. [PMID: 38280683 DOI: 10.1016/j.fitote.2024.105834] [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: 11/17/2023] [Revised: 01/17/2024] [Accepted: 01/24/2024] [Indexed: 01/29/2024]
Abstract
The phytochemical investigation of the pericarps of Caesalpinia bonduc led to the isolation and identification of five new cassane-type alkaloids: caesalminines C - G (1-5) and six new diterpenoids: caesalbonducin K - P (6-11), along with seven known compounds (12-18). Compounds 1-5 were identified as a group of rare alkaloids possessing a tetracyclic cassane-type diterpenoid skeleton with a lactam D-ring instead of a typical furan or lactone moiety. The structures of 1-11 were elucidated on the basis of 1D and 2D NMR including HSQC, HMBC, COSY and NOESY, and other spectroscopic analyses. The cytotoxic activities of the isolated compounds were evaluated in the A431, A549 and U87MG cancer cell lines.
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Affiliation(s)
- Shuai-Jie Yan
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, No. 260 Baichuan Street, Hangzhou 311402, People's Republic of China
| | - Si-Yang Huang
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, No. 260 Baichuan Street, Hangzhou 311402, People's Republic of China
| | - Jia-Shuo Xing
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, No. 260 Baichuan Street, Hangzhou 311402, People's Republic of China
| | - Yang-Rui Cai
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, No. 260 Baichuan Street, Hangzhou 311402, People's Republic of China
| | - Ye-Ping Ruan
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, No. 260 Baichuan Street, Hangzhou 311402, People's Republic of China.
| | - Pan-Pan Zhang
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, No. 260 Baichuan Street, Hangzhou 311402, People's Republic of China.
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3
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Xie L, Zhang XJ, Wang Y, Shi YF, Wang PP, Zagal D, Li CH. A new anti-neuroinflammation labdane diterpenoid from Salvia tricuspis. Nat Prod Res 2023:1-9. [PMID: 37610159 DOI: 10.1080/14786419.2023.2248541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 07/30/2023] [Accepted: 08/12/2023] [Indexed: 08/24/2023]
Abstract
One new labdane diterpenoid, tricuspion A (1), as well as five known triterpenoids (2-6) were isolated from Salvia tricuspis Franch (family Labiatae). The structure of tricuspion A was identified by extensive spectroscopic analysis and by comparison with previously reported data. Compounds 1-6 were evaluated for their inhibitory effects on the NO production in LPS-stimulated BV-2 microglia cells, and 1 exhibited potent inhibitory activity with IC50 value of 14.92 ± 0.51 μM. Compound 1 might exert anti-neuroinflammatory activity through inhibiting the excessive production of NO and down-regulating the protein expression of iNOS and COX-2. As such, labdane diterpenoid (tricuspion A) could provide promising anti-neuroinflammatory lead compound for further structural modification.
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Affiliation(s)
- Lu Xie
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry and Pharmacy, Northwest A&F University, Yangling, China
| | - Xiu-Juan Zhang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry and Pharmacy, Northwest A&F University, Yangling, China
| | - Ying Wang
- Technical Center of Kunming Customs, Kunming, China
| | - Ye-Fan Shi
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry and Pharmacy, Northwest A&F University, Yangling, China
| | - Pan-Pan Wang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry and Pharmacy, Northwest A&F University, Yangling, China
| | - Daniel Zagal
- Department of Pharmaceutical Science, Pharmacognosy Institute, College of Pharmacy, University of Illinois at Chicago, Chicago, IL, USA
| | - Chun-Huan Li
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry and Pharmacy, Northwest A&F University, Yangling, China
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4
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Lu W, Chen JT, Shi YF, Chen MS, Wang PP, Zhang XJ, Xiao CJ, Li D, Cao CY, Li CH, Gao JM. Diversified cassane family diterpenoids from the leaves of Caesalpinia minax exerting anti-neuroinflammatory activity through suppressing MAPK and NF-κB pathways in BV-2 microglia. JOURNAL OF ETHNOPHARMACOLOGY 2023; 315:116653. [PMID: 37236383 DOI: 10.1016/j.jep.2023.116653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 05/13/2023] [Accepted: 05/15/2023] [Indexed: 05/28/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Caesalpinia minax Hance, whose seeds are known as "Ku-shi-lian" in China, have been used in Chinese folk medicine for treatment of rheumatism, dysentery, and skin itching. However, the anti-neuroinflammatory constituents of its leaves and their mechanism are rarely reported. AIM OF THE STUDY To search for new anti-neuro-inflammatory compounds from the leaves of C. minax and elucidate their mechanism on anti-neuroinflammatory effect. MATERIALS AND METHODS The main metabolites of the ethyl acetate fraction from C. minax were analyzed and purified via HPLC and various column chromatography techniques. Their structures were elucidated on the basis of 1D and 2D NMR, HR-ESI-MS, and single crystal X-ray diffraction analysis. Anti-neuroinflammatory activity was evaluated in BV-2 microglia cells induced by LPS. The expression levels of molecules in NF-κB and MAPK signaling pathways were analyzed through western blotting. Meanwhile, the time- and dose-dependent expression of associated proteins such as iNOS and COX-2 were detected by western blotting. Furthermore, Compounds 1 and 3 were performed on the NF-κB p65 active site using molecular docking simulation to elucidate the molecular level inhibition mechanism. RESULTS 20 cassane diterpenoids, including two novel ones (caeminaxins A and B) were isolated from the leaves of C. minax Hance. Caeminaxins A and B possessed a rare unsaturated carbonyl moiety in their structures. Most of the metabolites exhibited potent inhibition effects with IC50 values ranging from 10.86 ± 0.82 to 32.55 ± 0.47μM. Among them, caeminaxin A inhibited seriously the expression of iNOS and COX-2 proteins and restrained the phosphorylation of MAPK and the activation of NF-κB signaling pathways in BV-2 cells. The anti-neuro-inflammatory mechanism of caeminaxin A has been studied systematically for the first time. Furthermore, biosynthesis pathways for compounds 1-20 were discussed. CONCLUSIONS The new cassane diterpenoid, caeminaxin A, alleviated the expression of iNOS and COX-2 protein and down-regulated of intracellular MAPK and NF-κB signaling pathways. The results implied that cassane diterpenoids had potential to be developed into therapeutic agents for neurodegenerative disorders such as Alzheimer's disease.
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Affiliation(s)
- Wang Lu
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, Shaanxi Engineering Center of Bioresource Chemistry & Sustainable Utilization, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, 712100, PR China
| | - Jin-Ting Chen
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, Shaanxi Engineering Center of Bioresource Chemistry & Sustainable Utilization, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, 712100, PR China
| | - Ye-Fan Shi
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, Shaanxi Engineering Center of Bioresource Chemistry & Sustainable Utilization, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, 712100, PR China
| | - Meng-Song Chen
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, Shaanxi Engineering Center of Bioresource Chemistry & Sustainable Utilization, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, 712100, PR China
| | - Pan-Pan Wang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, Shaanxi Engineering Center of Bioresource Chemistry & Sustainable Utilization, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, 712100, PR China
| | - Xiu-Juan Zhang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, Shaanxi Engineering Center of Bioresource Chemistry & Sustainable Utilization, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, 712100, PR China
| | - Chao-Jiang Xiao
- Yunnan Key Laboratory of Screening and Research on Anti-pathogenic Plant Resources from West Yunnan, College of Pharmacy, Dali University, Xueren Road 22, Dali, 671000, PR China
| | - Ding Li
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, Shaanxi Engineering Center of Bioresource Chemistry & Sustainable Utilization, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, 712100, PR China
| | - Chen-Yu Cao
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, Shaanxi Engineering Center of Bioresource Chemistry & Sustainable Utilization, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, 712100, PR China.
| | - Chun-Huan Li
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, Shaanxi Engineering Center of Bioresource Chemistry & Sustainable Utilization, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, 712100, PR China.
| | - Jin-Ming Gao
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, Shaanxi Engineering Center of Bioresource Chemistry & Sustainable Utilization, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, 712100, PR China
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Zentar H, Jannus F, Gutierrez P, Medina-O’Donnell M, Lupiáñez JA, Reyes-Zurita FJ, Alvarez-Manzaneda E, Chahboun R. Semisynthesis and Evaluation of Anti-Inflammatory Activity of the Cassane-Type Diterpenoid Taepeenin F and of Some Synthetic Intermediates. JOURNAL OF NATURAL PRODUCTS 2022; 85:2372-2384. [PMID: 36215157 PMCID: PMC9623576 DOI: 10.1021/acs.jnatprod.2c00578] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Indexed: 06/16/2023]
Abstract
A new strategy for the semisynthesis of the aromatic cassane-type diterpene taepeenin F (6) is reported. The introduction of the methyl group at C-14, characteristic of the target compound, was achieved via dienone 13, easily prepared from abietic acid (10), the major compound in renewable rosin. Biological assays of selected compounds are reported. The antiproliferative activity against HT29, B16-F10, and HepG2 tumor cell lines has been investigated. Salicylaldehyde 21 was the most active compound (IC50 = 7.72 μM). Products 16 and 21 displayed apoptotic effects in B16-F10 cells, with total apoptosis rates of 46 and 38.4%, respectively. This apoptotic process involves a significant arrest of the B16-F10 cell cycle, blocking the G0/G1 phase. Dienone 16 did not cause any loss of the mitochondrial membrane potential (MMP), while salicylaldehyde 21 caused a partial loss of the MMP. The anti-inflammatory activity of the selected compounds was investigated with the LPS-stimulated RAW 264.7 macrophages. All compounds showed potent NO inhibition, with percentages between 80 and 99% at subcytotoxic concentrations. Dienone 16 inhibited LPS-induced differentiation of RAW 264.7 cells, by increasing the proportion of cells in the S phase. In addition, salicylaldehyde 21 had effects on the cell cycle, recovering the cells from the G0/G1 full arrest produced in response to LPS action.
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Affiliation(s)
- Houda Zentar
- Departamento
de Química Orgánica, Facultad de Ciencias, Instituto
de Biotecnología, Universidad de
Granada, 18071 Granada, Spain
| | - Fatin Jannus
- Departamento
de Bioquímica y Biología Molecular I, Facultad de Ciencias, Universidad de Granada, 18071 Granada, Spain
| | - Pilar Gutierrez
- Departamento
de Química Orgánica, Facultad de Ciencias, Instituto
de Biotecnología, Universidad de
Granada, 18071 Granada, Spain
| | - Marta Medina-O’Donnell
- Departamento
de Química Orgánica, Facultad de Ciencias, Instituto
de Biotecnología, Universidad de
Granada, 18071 Granada, Spain
| | - José Antonio Lupiáñez
- Departamento
de Bioquímica y Biología Molecular I, Facultad de Ciencias, Universidad de Granada, 18071 Granada, Spain
| | - Fernando J. Reyes-Zurita
- Departamento
de Bioquímica y Biología Molecular I, Facultad de Ciencias, Universidad de Granada, 18071 Granada, Spain
| | - Enrique Alvarez-Manzaneda
- Departamento
de Química Orgánica, Facultad de Ciencias, Instituto
de Biotecnología, Universidad de
Granada, 18071 Granada, Spain
| | - Rachid Chahboun
- Departamento
de Química Orgánica, Facultad de Ciencias, Instituto
de Biotecnología, Universidad de
Granada, 18071 Granada, Spain
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6
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Lou R, Xu F, Xu Y, Chen J, Feng Z, Gan L, Lin L. Caesalpinaxin, a cassane-type diterpenoid with a 21-carbon core skeleton from the seeds of Caesalpinia minax possessing pro-angiogenetic property. Bioorg Chem 2021; 117:105426. [PMID: 34666257 DOI: 10.1016/j.bioorg.2021.105426] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 10/05/2021] [Accepted: 10/09/2021] [Indexed: 12/26/2022]
Abstract
A novel cassane-type diterpenoid, caesalpinaxin (1), was isolated from the seeds of Caesalpinia minax Hance. The structure of caesalpinaxin was established by means of spectroscopic techniques (NMR, HR-ESIMS, UV and IR). The absolute configuration of caesalpinaxin was determined by quantum chemical calculations of its theoretical electronic circular dichroism (ECD) spectrum. Caesalpinaxin is the first cassane-type diterpenoid with 21 carbons core skeleton, containing an unusual δ-lactone ring. A plausible biosynthetic pathway was proposed for compound 1. Furthermore, caesalpinaxin was tested for the pro-angiogenetic activity on human umbilical vein endothelial cells(HUVECs). The results indicated that this compound significantly stimulated migration and tuber formation through enhancing the level of vascular endothelial growth factor (VEGF). Thus, caesalpinaxin might be applied in accelerating wound healing.
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Affiliation(s)
- Ruohan Lou
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macau 999078, People's Republic of China
| | - Fan Xu
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, People's Republic of China
| | - Yunshao Xu
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macau 999078, People's Republic of China
| | - Jiali Chen
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macau 999078, People's Republic of China
| | - Zheling Feng
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macau 999078, People's Republic of China
| | - Lishe Gan
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, People's Republic of China; College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, People's Republic of China.
| | - Ligen Lin
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macau 999078, People's Republic of China.
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Cao J, Xu Y, Lou R, Shi W, Chen J, Gan L, Lu J, Lin L. Cassane-Type Diterpenoids from the Seeds of Caesalpinia bonduc (L.) Roxb. Chem Biodivers 2021; 18:e2100309. [PMID: 34184408 DOI: 10.1002/cbdv.202100309] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Accepted: 06/28/2021] [Indexed: 01/22/2023]
Abstract
Ten new cassane-type diterpenoids were isolated from the seeds of Caesalpinia bonduc (L.) Roxb., including 6α-hydroxycaesalpinin P (1), 14-epi-caesalpinin E1 (2), 6-deacetylcaesalmin Z (3), 14-epi-caesalmin Z (4), caesalpinolides I (5), K (6), L (7), M (9) and N (10), and 14-epi-neocaesalpin L (8). Their planar structures and absolute configurations were fully determined by comprehensive spectroscopic methods, including 2D NMR and electronic circular dichroism spectra. Compounds 1-4 are tetracyclic cassane diterpenoids possessing a furan ring, and compounds 5-10 are tetracyclic cassane diterpenoids possessing a fused butenolide moiety. The anti-inflammatory and cytotoxic activities of the isolates were evaluated, while none of them showed obvious effects. The current study identified ten new cassane-type diterpenoids from the seeds of C. bonduc (L.) Roxb., which enriched the chemical diversity of the titled herbal medicine.
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Affiliation(s)
- Jun Cao
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Avenida da Universidade, Taipa, Macao, 999078, P. R. China
| | - Yunshao Xu
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Avenida da Universidade, Taipa, Macao, 999078, P. R. China
| | - Ruohan Lou
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Avenida da Universidade, Taipa, Macao, 999078, P. R. China
| | - Wei Shi
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Avenida da Universidade, Taipa, Macao, 999078, P. R. China
| | - Jiali Chen
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Avenida da Universidade, Taipa, Macao, 999078, P. R. China
| | - Lishe Gan
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong, 529020, P. R. China
| | - Jinjian Lu
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Avenida da Universidade, Taipa, Macao, 999078, P. R. China
| | - Ligen Lin
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Avenida da Universidade, Taipa, Macao, 999078, P. R. China
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8
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Xu Y, Zhang T, Feng L, Feng Z, Zhang Q, Ye Y, Gan L, Lin L. Biscaesalmins A and B from Caesalpinia minax, highly oxidized dimeric cassane diterpenoids as interleukin-1β inhibitors. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2020.09.048] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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9
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Liu T, Li X, Ning Z, Qi S, Gao H. Two new cassane-type diterpenoids from the seed kernels of Caesalpinia bonduc (Linn.) Roxb. and their anti-inflammatory activity. Nat Prod Res 2021; 36:3901-3908. [PMID: 33663272 DOI: 10.1080/14786419.2021.1896511] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
In this study, phytochemical investigation on the chloroform soluble fraction of seed kernels of Caesalpinia bonduc led to the isolation of two new cassane-type diterpenoids, norcaesalpinin Q (1) and caesalpinin MR (2), together with seven known compounds (3-9). The structures of the new compounds were elucidated on the basis of extensive NMR spectroscopic and mass spectrometric analyses, and their absolute configurations were determined by electronic circular dichroism (ECD) calculations. All compounds were evaluated for inhibitory effects against NO production of RAW264.7 cells induced by LPS, and compounds 5, 7 and 8 could inhibited the production of NO at the concentration of 50 µM.
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Affiliation(s)
- Ting Liu
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, People's Republic of China.,Key Laboratory of Structure-Based Drug Design & Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang, People's Republic of China
| | - Xiang Li
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, People's Republic of China
| | - Zunxi Ning
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, People's Republic of China.,Key Laboratory of Structure-Based Drug Design & Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang, People's Republic of China
| | - Shizhou Qi
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, People's Republic of China.,Key Laboratory of Structure-Based Drug Design & Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang, People's Republic of China
| | - Huiyuan Gao
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, People's Republic of China.,Key Laboratory of Structure-Based Drug Design & Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang, People's Republic of China
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10
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Huang GD, Chen FF, Ma GX, Li WP, Zheng YY, Meng XB, Li ZY, Chen L. Cassane diterpenoid derivative induces apoptosis in IDH1 mutant glioma cells through the inhibition of glutaminase in vitro and in vivo. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2021; 82:153434. [PMID: 33529962 DOI: 10.1016/j.phymed.2020.153434] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 11/19/2020] [Accepted: 12/02/2020] [Indexed: 06/12/2023]
Abstract
BACKGROUND Glioblastoma multiforme (GBM) is the most frequent, lethal and aggressive tumour of the central nervous system in adults. The discovery of novel anti-GBM agents based on the isocitrate dehydrogenase (IDH) mutant phenotypes and classifications have attracted comprehensive attention. PURPOSE Diterpenoids are a class of naturally occurring 20-carbon isoprenoid compounds, and have previously been shown to possess high cytotoxicity for a variety of human tumours in many scientific reports. In the present study, 31 cassane diterpenoids of four types, namely, butanolide lactone cassane diterpenoids (I) (1-10), tricyclic cassane diterpenoids (II) (11-15), polyoxybutanolide lactone cassane diterpenoids (III) (16-23), and fused furan ring cassane diterpenoids (IV) (24-31), were tested for their anti-glioblastoma activity and mechanism underlying based on IDH1 mutant phenotypes of primary GBM cell cultures and human oligodendroglioma (HOG) cell lines. RESULTS We confirmed that tricyclic-type (II) and compound 13 (Caesalpin A, CSA) showed the best anti-neoplastic potencies in IDH1 mutant glioma cells compared with the other types and compounds. Furthermore, the structure-relationship analysis indicated that the carbonyl group at C-12 and an α, β-unsaturated ketone unit fundamentally contributed to enhancing the anti-glioma activity. Studies investigating the mechanism demonstrated that CSA induced oxidative stress via causing glutathione reduction and NOS activation by negatively regulating glutaminase (GLS), which proved to be highly dependent on IDH mutant type glioblastoma. Finally, GLS overexpression reversed the CSA-induced anti-glioma effects in vitro and in vivo, which indicated that the reduction of GLS contributed to the CSA-induced proliferation inhibition and apoptosis in HOG-IDH1-mu cells. CONCLUSION Therefore, the present results demonstrated that compared with other diterpenoids, tricyclic-type diterpenoids could be a targeted drug candidate for the treatment of secondary IDH1 mutant type glioblastoma through negatively regulating GLS.
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Affiliation(s)
- Guo-Dong Huang
- Department of Neurosurgery, Shenzhen Key Laboratory of Neurosurgery, the First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, 3002# Sungang Road, Futian District, Shenzhen 518035, China
| | - Fan-Fan Chen
- Department of Neurosurgery, Shenzhen Key Laboratory of Neurosurgery, the First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, 3002# Sungang Road, Futian District, Shenzhen 518035, China
| | - Guo-Xu Ma
- Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100193, China
| | - Wei-Ping Li
- Department of Neurosurgery, Shenzhen Key Laboratory of Neurosurgery, the First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, 3002# Sungang Road, Futian District, Shenzhen 518035, China
| | - Yue-Yang Zheng
- Department of Neurosurgery, Shenzhen Key Laboratory of Neurosurgery, the First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, 3002# Sungang Road, Futian District, Shenzhen 518035, China
| | - Xiang-Bao Meng
- Department of Neurosurgery, Shenzhen Key Laboratory of Neurosurgery, the First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, 3002# Sungang Road, Futian District, Shenzhen 518035, China
| | - Zong-Yang Li
- Department of Neurosurgery, Shenzhen Key Laboratory of Neurosurgery, the First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, 3002# Sungang Road, Futian District, Shenzhen 518035, China.
| | - Lei Chen
- Department of Neurosurgery, Shenzhen Key Laboratory of Neurosurgery, the First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, 3002# Sungang Road, Futian District, Shenzhen 518035, China.
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11
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Liu T, Ning Z, Yin Y, Qi S, Gao H. Acid-catalyzed transformation of cassane diterpenoids from Caesalpinia bonduc to aromatic derivatives. RSC Adv 2021; 11:22070-22078. [PMID: 35480829 PMCID: PMC9034224 DOI: 10.1039/d1ra03636j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Accepted: 06/14/2021] [Indexed: 11/29/2022] Open
Abstract
Transformations of cassane diterpenoids from Caesalpinia bonduc into aromatic derivatives, either in CDCl3 or in CHCl3 irradiated with UV light or catalyzed by AlCl3, were described. Caesalmin C (2) was hydrolyzed with Na2CO3 upon refluxing in MeOH to yield compound 1. Dissolving compound 1 with CDCl3 resulted in an unexpected aromatization process of a C ring to obtain 1a, and aromatic derivatives 6-acetoxy-3-deacetoxycaesaldekarin e (2a), caesall A (3a), caesaldekarin e (5a), caesalpinin MC (5b), 2-acetoxycaesaldekarin e (6a) and new compound 6b could be obtained from corresponding cassane diterpenoids (2–8) under the same conditions. Furthermore, the photochemical reactions of cassane diterpenoids 1–8 occurring in CHCl3 also yielded aromatic derivatives 1a, 2a, 3a, 5a, 6a, new compounds 2b and 3b, and 17-norcassane diterpenoids norcaesalpinin MC (2c) and caesalmin J (3c). In addition, cassane diterpenoids 1–8, treated with AlCl3 in CHCl3 or CH2Cl2, gave the same results in CDCl3 and with even shorter reaction time. The role of AlCl3 in the aromatization of 1 has been explained by DFT calculations. Transformations of cassane diterpenoids from Caesalpinia bonduc into aromatic derivatives, either in CDCl3 or in CHCl3 irradiated with UV light or catalyzed by AlCl3, were described.![]()
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Affiliation(s)
- Ting Liu
- School of Traditional Chinese Materia Medica
- Shenyang Pharmaceutical University
- Shenyang 110016
- People's Republic of China
- Key Laboratory of Structure-Based Drug Design & Discovery of Ministry of Education
| | - Zunxi Ning
- School of Traditional Chinese Materia Medica
- Shenyang Pharmaceutical University
- Shenyang 110016
- People's Republic of China
- Key Laboratory of Structure-Based Drug Design & Discovery of Ministry of Education
| | - Yan Yin
- School of Traditional Chinese Materia Medica
- Shenyang Pharmaceutical University
- Shenyang 110016
- People's Republic of China
- Key Laboratory of Structure-Based Drug Design & Discovery of Ministry of Education
| | - Shizhou Qi
- School of Traditional Chinese Materia Medica
- Shenyang Pharmaceutical University
- Shenyang 110016
- People's Republic of China
- Key Laboratory of Structure-Based Drug Design & Discovery of Ministry of Education
| | - Huiyuan Gao
- School of Traditional Chinese Materia Medica
- Shenyang Pharmaceutical University
- Shenyang 110016
- People's Republic of China
- Key Laboratory of Structure-Based Drug Design & Discovery of Ministry of Education
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12
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Xu Y, Shi W, Feng L, Cao J, Feng Z, Zhang Q, Lu J, Ye Y, Lin L. Anti-proliferative cassane-type diterpenoids from the seeds of Caesalpinia minax. Nat Prod Res 2020; 36:932-941. [PMID: 33930991 DOI: 10.1080/14786419.2020.1853729] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The seeds of Caesalpinia minax Hance have shown anti-tumor potential, while the chemical principle is still unknown. In a search for anti-tumor compounds, six new cassane-type diterpenoids, 12-demethylcaesalpin G (1), caesalpinolide H (2), 12-demethylcaesalpin H (3), caesalpinolide J (4), 12-O-ethyl neocaesalpin B (5), and 3-deacetyldecapetpene B (6), were isolated from the seeds of C. minax Hance, along with fifteen known analogues. The structures of the new compounds were established by means of spectroscopic techniques (NMR, HRESIMS and IR). The absolute configurations of the new compounds were determined by their ECD spectra. All of the new compounds were tested for their anti-proliferative activity against human lung cancer A549 cells, breast cancer MCF-7 cells, and ovarian cancer HEY cells. The results indicated that only compound 6 displayed moderate cytotoxicity against three cancer cell lines. Thus, the opening of furan ring in cassane-type diterpenoids might enhance the cytotoxic activity.
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Affiliation(s)
- Yunshao Xu
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Wei Shi
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Lu Feng
- State Key Laboratory of Drug Research, & Natural Products Chemistry Department, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
| | - Jun Cao
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Zheling Feng
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Qingwen Zhang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Jinjian Lu
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Yang Ye
- State Key Laboratory of Drug Research, & Natural Products Chemistry Department, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China.,School of Life Science and Technology, Shanghai Tech University, Shanghai, China
| | - Ligen Lin
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
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13
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Raksat A, Aree T, Pudhom K. Pterolobirins A and B, Oxygen-Bridged Cassane Diterpenoid Dimers from the Fruits of Pterolobium macropterum. JOURNAL OF NATURAL PRODUCTS 2020; 83:2241-2245. [PMID: 32602341 DOI: 10.1021/acs.jnatprod.0c00354] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Two dimeric cassane diterpenoids with an unprecedented 6/6/6/6/6/5/6/6/6 nonacyclic framework, pterolobirins A and B (1 and 2), were isolated from the fruits of Pterolobium macropterum. Their structures were assigned by interpreting the spectroscopic data. The absolute configuration of 1 was unequivocally confirmed by single-crystal X-ray diffraction data. A putative biosynthetic pathway is proposed based on a regular intermolecular Diels-Alder reaction and an intramolecular nucleophilic addition.
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Affiliation(s)
- Achara Raksat
- Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
| | - Thammarat Aree
- Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
| | - Khanitha Pudhom
- Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
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14
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Wang DS, Nie W, Jiang TT, Ding LF, Song LD, Wu XD, Zhao QS. Caesalpanins A-C, Three Dimeric Cassane Diterpenoids from the Seeds of Caesalpinia sappan L. Chem Biodivers 2020; 17:e2000103. [PMID: 32180346 DOI: 10.1002/cbdv.202000103] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Accepted: 03/16/2020] [Indexed: 01/02/2023]
Abstract
Three dimeric cassane diterpenoids, caesalpanins A-C, were isolated from the seeds of Caesalpinia sappan L., as well as three known compounds. Their structures were determined via analysis of 1D-, 2D-NMR, and HR-ESI-MS data. Caesalpanins A and B were the second and third compounds that presented a nitrogen-containing cassane diterpenoid dimer linked through one ether bond between C-19 and C-20'. Caesalpanin B exhibited moderate cytotoxic activity against MCF-7 cell lines with IC50 value of 29.98 μm. Caesalpanins A and B had weak inhibitory effects against LPS-induced nitric oxide (NO) production in RAW 264.7 macrophages at 50 μm with inhibitory rate of 36.01 % and 32.93 %, respectively.
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Affiliation(s)
- De-Sheng Wang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, P. R. China.,School of Pharmaceutical Science and Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, 650500, P. R. China
| | - Wei Nie
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, P. R. China.,School of Pharmaceutical Science and Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, 650500, P. R. China
| | - Ting-Ting Jiang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, P. R. China.,School of Pharmaceutical Science and Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, 650500, P. R. China
| | - Lin-Fen Ding
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, P. R. China.,School of Pharmaceutical Science and Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, 650500, P. R. China
| | - Liu-Dong Song
- School of Pharmaceutical Science and Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, 650500, P. R. China
| | - Xing-De Wu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, P. R. China
| | - Qin-Shi Zhao
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, P. R. China
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15
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Jing W, Zhang X, Zhou H, Wang Y, Yang M, Long L, Gao H. Naturally occurring cassane diterpenoids (CAs) of Caesalpinia: A systematic review of its biosynthesis, chemistry and pharmacology. Fitoterapia 2019; 134:226-249. [DOI: 10.1016/j.fitote.2019.02.023] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2018] [Revised: 02/24/2019] [Accepted: 02/26/2019] [Indexed: 12/20/2022]
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16
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Ruan QF, Zhou XH, Jiang SQ, Yang B, Jin J, Cui H, Zhao ZX. Caesalminaxins O-T, cassane diterpenoids from the seeds of Caesalpinia minax and their anti-inflammation. Fitoterapia 2019; 134:50-57. [DOI: 10.1016/j.fitote.2019.02.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2018] [Revised: 02/02/2019] [Accepted: 02/03/2019] [Indexed: 10/27/2022]
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17
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Zentar H, Arias F, Haidour A, Alvarez-Manzaneda R, Chahboun R, Alvarez-Manzaneda E. Protecting-Group-Free Synthesis of Cassane-Type Furan Diterpenes via a Decarboxylative Dienone–Phenol Rearrangement. Org Lett 2018; 20:7007-7010. [DOI: 10.1021/acs.orglett.8b02867] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Houda Zentar
- Departamento de Química Orgánica, Facultad de Ciencias, Instituto de Biotecnología, Universidad de Granada, 18071 Granada, Spain
| | - Fabio Arias
- Departamento de Química Orgánica, Facultad de Ciencias, Instituto de Biotecnología, Universidad de Granada, 18071 Granada, Spain
| | - Ali Haidour
- Departamento de Química Orgánica, Facultad de Ciencias, Instituto de Biotecnología, Universidad de Granada, 18071 Granada, Spain
| | - Ramón Alvarez-Manzaneda
- Àrea de Química Orgánica, Departamento de Química y Física, Universidad de Almería, 04120 Almería, Spain
| | - Rachid Chahboun
- Departamento de Química Orgánica, Facultad de Ciencias, Instituto de Biotecnología, Universidad de Granada, 18071 Granada, Spain
| | - Enrique Alvarez-Manzaneda
- Departamento de Química Orgánica, Facultad de Ciencias, Instituto de Biotecnología, Universidad de Granada, 18071 Granada, Spain
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18
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Gutierrez P, Altarejos J, Linares-Palomino PJ, Chahboun R, Alvarez-Manzaneda E. Synthesis of cassane-type diterpenes from abietane compounds: the first synthesis of taepeenin F. Org Chem Front 2018. [DOI: 10.1039/c8qo00603b] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The first synthesis of taepeenin F from abietic acid is reported, utilizing as the key step the ipso-substitution of the isopropyl group of a dehydroabietane derivative by a formyl group, after treatment with Cl2CHOMe and AlCl3.
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Affiliation(s)
- Pilar Gutierrez
- Departamento de Química Orgánica
- Facultad de Ciencias
- Instituto de Biotecnología
- Universidad de Granada
- 18071 Granada
| | - Joaquín Altarejos
- Departamento de Química Inorgánica y Orgánica
- Facultad de Ciencias Experimentales
- Universidad de Jaén
- 23071 Jaén
- Spain
| | - Pablo J. Linares-Palomino
- Departamento de Química Inorgánica y Orgánica
- Facultad de Ciencias Experimentales
- Universidad de Jaén
- 23071 Jaén
- Spain
| | - Rachid Chahboun
- Departamento de Química Orgánica
- Facultad de Ciencias
- Instituto de Biotecnología
- Universidad de Granada
- 18071 Granada
| | - Enrique Alvarez-Manzaneda
- Departamento de Química Orgánica
- Facultad de Ciencias
- Instituto de Biotecnología
- Universidad de Granada
- 18071 Granada
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19
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New Cassane Diterpenoids from Caesalpinia sappan and their Antiplasmodial Activity. Molecules 2017; 22:molecules22101751. [PMID: 29039768 PMCID: PMC6151731 DOI: 10.3390/molecules22101751] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Revised: 10/13/2017] [Accepted: 10/13/2017] [Indexed: 11/18/2022] Open
Abstract
One new cassane diterpene possessing an unusual N bridge between C-19 and C-20 named caesalsappanin R (1), as well as another new diterpene caesalsappanin S (2), were isolated from the seeds of Caesalpinia sappan with methanol extract. Their structures were determined by spectroscopic analysis and examined alongside existing data from prior studies. Their biological activities were profiled by their antiplasmodial activity.
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20
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Qiao Y, Xu Q, Hu Z, Li XN, Xiang M, Liu J, Huang J, Zhu H, Wang J, Luo Z, Xue Y, Zhang Y. Diterpenoids of the Cassane Type from Caesalpinia decapetala. JOURNAL OF NATURAL PRODUCTS 2016; 79:3134-3142. [PMID: 27966950 DOI: 10.1021/acs.jnatprod.6b00910] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Eighteen compounds, including eight new cassane-type furanoditerpenoids, 3β-hydroxyphanginin H (1), 3β-acetoxyphanginin H (2), 7β-acetoxyphanginin H (3), 7β-hydroxyphanginin H (4), 4-epi-3β-hydroxycaesalpinilinn (5), 4-epi-3β-acetoxycaesalpinilinn (6), 20-acetoxytaepeenin D (7), and tomocin E (8), along with 10 known compounds (9-18) were isolated from the roots of Caesalpinia decapetala. Compounds 1-13 were isolated from C. decapetala for the first time. The new compounds with their absolute configurations were determined by extensive spectroscopic analysis, single-crystal X-ray diffraction, and electronic circular dichroism calculations. Compounds 1, 4, 5, 7, and 11 exhibited inhibitory activities against the SW1990 human pancreatic cancer cell line with IC50 values ranging from 2.9 to 8.9 μM.
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MESH Headings
- Animals
- Antineoplastic Agents, Phytogenic/chemistry
- Antineoplastic Agents, Phytogenic/isolation & purification
- Antineoplastic Agents, Phytogenic/pharmacology
- Caesalpinia/chemistry
- Crystallography, X-Ray
- Cyclosporine/pharmacology
- Diterpenes/chemistry
- Diterpenes/isolation & purification
- Diterpenes/pharmacology
- Drug Screening Assays, Antitumor
- Drugs, Chinese Herbal/chemistry
- Drugs, Chinese Herbal/isolation & purification
- Drugs, Chinese Herbal/pharmacology
- Humans
- Male
- Mice, Inbred BALB C
- Molecular Conformation
- Molecular Structure
- Nuclear Magnetic Resonance, Biomolecular
- Plant Roots/classification
- Seeds/chemistry
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Affiliation(s)
- Yuben Qiao
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation and Department of Pharmacology, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology , Wuhan 430030, Hubei Province, People's Republic of China
| | - Qianqian Xu
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation and Department of Pharmacology, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology , Wuhan 430030, Hubei Province, People's Republic of China
| | - Zhengxi Hu
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation and Department of Pharmacology, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology , Wuhan 430030, Hubei Province, People's Republic of China
| | - Xiao-Nian Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650204, Yunnan Province, People's Republic of China
| | - Ming Xiang
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation and Department of Pharmacology, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology , Wuhan 430030, Hubei Province, People's Republic of China
| | - Junjun Liu
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation and Department of Pharmacology, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology , Wuhan 430030, Hubei Province, People's Republic of China
| | - Jinfeng Huang
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation and Department of Pharmacology, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology , Wuhan 430030, Hubei Province, People's Republic of China
| | - Hucheng Zhu
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation and Department of Pharmacology, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology , Wuhan 430030, Hubei Province, People's Republic of China
| | - Jianping Wang
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation and Department of Pharmacology, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology , Wuhan 430030, Hubei Province, People's Republic of China
| | - Zengwei Luo
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation and Department of Pharmacology, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology , Wuhan 430030, Hubei Province, People's Republic of China
| | - Yongbo Xue
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation and Department of Pharmacology, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology , Wuhan 430030, Hubei Province, People's Republic of China
| | - Yonghui Zhang
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation and Department of Pharmacology, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology , Wuhan 430030, Hubei Province, People's Republic of China
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21
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Xiao F, Tang CP, Ke CQ, Yao S, Ye Y. Rearranged diterpenoids from the seeds of Caesalpinia sappan. CHINESE CHEM LETT 2016. [DOI: 10.1016/j.cclet.2016.04.022] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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22
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Mahdjour S, Harche-Kaid M, Haidour A, Chahboun R, Alvarez-Manzaneda E. Short Route to Cassane-Type Diterpenoids: Synthesis of the Supposed Structure of Benthaminin 1. Org Lett 2016; 18:5964-5967. [DOI: 10.1021/acs.orglett.6b03121] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Soumicha Mahdjour
- Laboratory Productions,
Plant and Microbial Valuations (LP2VM), Department of Biotechnology, University of Sciences and Technology of Oran Mohamed Boudiaf, BP 1525, EL M’Naouer, Oran, Algeria
| | - Meriem Harche-Kaid
- Laboratory Productions,
Plant and Microbial Valuations (LP2VM), Department of Biotechnology, University of Sciences and Technology of Oran Mohamed Boudiaf, BP 1525, EL M’Naouer, Oran, Algeria
| | - Alí Haidour
- Departamento de Química
Orgánica, Facultad de Ciencias, Universidad de Granada, 18071 Granada, Spain
| | - Rachid Chahboun
- Departamento de Química
Orgánica, Facultad de Ciencias, Universidad de Granada, 18071 Granada, Spain
| | - Enrique Alvarez-Manzaneda
- Departamento de Química
Orgánica, Facultad de Ciencias, Universidad de Granada, 18071 Granada, Spain
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23
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Xu X, Yuan J, Zhou X, Li W, Zhu N, Wu H, Li P, Sun Z, Yang J, Ma G. Cassane diterpenes with oxygen bridge from the seeds of Caesalpinia sappan. Fitoterapia 2016; 112:205-10. [DOI: 10.1016/j.fitote.2016.06.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Revised: 06/07/2016] [Accepted: 06/13/2016] [Indexed: 11/28/2022]
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24
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Bao H, Zhang LL, Liu QY, Feng L, Ye Y, Lu JJ, Lin LG. Cytotoxic and Pro-Apoptotic Effects of Cassane Diterpenoids from the Seeds of Caesalpinia sappan in Cancer Cells. Molecules 2016; 21:molecules21060791. [PMID: 27322234 PMCID: PMC6274183 DOI: 10.3390/molecules21060791] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2016] [Revised: 06/12/2016] [Accepted: 06/15/2016] [Indexed: 01/23/2023] Open
Abstract
The chemical study on the seeds of Caesalpinia sappan led to the isolation of five new cassane diterpenoids, phanginins R‒T (1–3) and caesalsappanins M and N (4 and 5), together with seven known compounds 6–12. Their structures were elucidated on the basis of NMR and HRESIMS analyses. The absolute configurations of compounds 1 and 4 were determined by the corresponding CD spectra. All the isolated compounds were tested for their cytotoxicity against ovarian cancer A2780 and HEY, gastric cancer AGS, and non-small cell lung cancer A549 cells. Compound 1 displayed significant toxicity against the four cell lines with the IC50 values of 9.9 ± 1.6 µM, 12.2 ± 6.5 µM, 5.3 ± 1.9 µM, and 12.3 ± 3.1 µM, respectively. Compound 1 induced G1 phase cell cycle arrest in A2780 cells. Furthermore, compound 1 dose-dependently induced A2780 cells apoptosis as evidenced by Hoechst 33342 staining, Annexin V positive cells, the up-regulated cleaved-PARP and the enhanced Bax/Bcl-2 ratio. What’s more, compound 1 also promoted the expression of the tumor suppressor p53 protein. These findings indicate that cassane diterpenoids might have potential as anti-cancer agents, and further in vivo animal studies and structural modification investigation are needed.
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Affiliation(s)
- Han Bao
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau 999078, China.
| | - Le-Le Zhang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau 999078, China.
| | - Qian-Yu Liu
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau 999078, China.
| | - Lu Feng
- Department of Natural Products Chemistry, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China.
| | - Yang Ye
- Department of Natural Products Chemistry, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China.
| | - Jin-Jian Lu
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau 999078, China.
| | - Li-Gen Lin
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau 999078, China.
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25
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Ma G, Wu H, Chen D, Zhu N, Zhu Y, Sun Z, Li P, Yang J, Yuan J, Xu X. Antimalarial and Antiproliferative Cassane Diterpenes of Caesalpinia sappan. JOURNAL OF NATURAL PRODUCTS 2015; 78:2364-2371. [PMID: 26398312 DOI: 10.1021/acs.jnatprod.5b00317] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Bioassay-guided fractionation of a methanol extract of the seeds of Caesalpinia sappan led to the isolation of 12 new cassane-type diterpenes, caesalsappanins A-L (1-12). Their structures were elucidated on the basis of NMR and HRESIMS analysis, and the absolute configuration of compound 1 was determined by single-crystal X-ray crystallography. All isolated compounds were tested against a chloroquine-resistant Plasmodium falciparum strain for antiplasmodial activities and against a small panel of human cancer cell lines for antiproliferative activities. Compounds 7 and 8 displayed antimalarial activity against the chloroquine-resistant K1 strain of P. falciparum with IC50 values of 0.78 and 0.52 μM and selectivity indices of 17.6 and 16.4, respectively. Compound 10 showed antiproliferative activity against the KB cancer cell line with an IC50 value of 7.4 μM.
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Affiliation(s)
- Guoxu Ma
- Key Laboratory of Bioactive Substances and Resource Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences , Beijing 100193, People's Republic of China
| | - Haifeng Wu
- Key Laboratory of Bioactive Substances and Resource Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences , Beijing 100193, People's Republic of China
| | - Deli Chen
- Hainan Branch Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College , Wanning 571533, People's Republic of China
| | - Nailiang Zhu
- Key Laboratory of Bioactive Substances and Resource Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences , Beijing 100193, People's Republic of China
| | - Yindi Zhu
- Key Laboratory of Bioactive Substances and Resource Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences , Beijing 100193, People's Republic of China
| | - Zhonghao Sun
- Key Laboratory of Bioactive Substances and Resource Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences , Beijing 100193, People's Republic of China
| | - Pengfei Li
- Key Laboratory of Bioactive Substances and Resource Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences , Beijing 100193, People's Republic of China
| | - Junshan Yang
- Key Laboratory of Bioactive Substances and Resource Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences , Beijing 100193, People's Republic of China
| | - Jingquan Yuan
- National Engineering Laboratory of Southwest Endangered Medicinal Resource Development, National Development and Reform Commission, Guangxi Botanical Garden of Medicinal Plants , Nanning 530023, People's Republic of China
| | - Xudong Xu
- Key Laboratory of Bioactive Substances and Resource Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences , Beijing 100193, People's Republic of China
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26
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Zhang JS, Guo YQ, Bao JM, Jiang MH, Lin SL, Su ZY, Tang GH, Yin S. Antioxidative Cassane Diterpenoids from the Seeds ofCaesalpinia minax. Helv Chim Acta 2015. [DOI: 10.1002/hlca.201500230] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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27
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Six new cassane diterpenes from the twigs and leaves of Tara (Caesalpinia spinosa Kuntze). Fitoterapia 2015; 105:273-7. [DOI: 10.1016/j.fitote.2015.07.018] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2015] [Revised: 07/26/2015] [Accepted: 07/28/2015] [Indexed: 11/22/2022]
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28
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Liu QB, Huang L, Zhang L, Liu Q, Xu QQ, Qin XJ, Fang XY, Zeng Y. Two new cassane-type diterpenes from the seeds of Caesalpinia crista. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2015; 17:1073-1078. [PMID: 26268904 DOI: 10.1080/10286020.2015.1054379] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2015] [Accepted: 05/19/2015] [Indexed: 06/04/2023]
Abstract
Two new cassane-type diterpenes, phangininoxys D and E (1 and 2), together with five known compounds were isolated from the seeds of Caesalpinia crista Linn. The structures of these compounds were elucidated by means of various spectroscopic analyses. All the isolated compounds were evaluated for cytotoxicity activities against HeLa, HT-29 and KB cell lines, and compound 7 showed moderate selective activities against KB cell line with an IC50 value of 17.1 μM.
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Affiliation(s)
- Qi-Bing Liu
- a Department of Pharmacology , School of Pharmaceutical Science, Hainan Medical University , Haikou 571199 , China
| | - Ling Huang
- a Department of Pharmacology , School of Pharmaceutical Science, Hainan Medical University , Haikou 571199 , China
| | - Li Zhang
- a Department of Pharmacology , School of Pharmaceutical Science, Hainan Medical University , Haikou 571199 , China
| | - Qiang Liu
- a Department of Pharmacology , School of Pharmaceutical Science, Hainan Medical University , Haikou 571199 , China
| | - Qiao-Qin Xu
- a Department of Pharmacology , School of Pharmaceutical Science, Hainan Medical University , Haikou 571199 , China
| | - Xian-Jing Qin
- a Department of Pharmacology , School of Pharmaceutical Science, Hainan Medical University , Haikou 571199 , China
| | - Xing-Yue Fang
- a Department of Pharmacology , School of Pharmaceutical Science, Hainan Medical University , Haikou 571199 , China
| | - Yu Zeng
- a Department of Pharmacology , School of Pharmaceutical Science, Hainan Medical University , Haikou 571199 , China
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29
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Trinorcassane and cassane diterpenoids from the seeds of Caesalpinia minax. Fitoterapia 2015; 102:177-81. [DOI: 10.1016/j.fitote.2015.03.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2015] [Revised: 03/04/2015] [Accepted: 03/06/2015] [Indexed: 10/23/2022]
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30
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Shen CP, Luo JG, Yang MH, Kong LY. A pair of novel 2,3-seco cafestol-type diterpenoid epimers from the twigs of Tricalysia fruticosa. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.01.178] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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31
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Abstract
This review covers the isolation and chemistry of diterpenoids from terrestrial as opposed to marine sources and includes labdanes, clerodanes, pimaranes, abietanes, kauranes, gibberellins, cembranes and their cyclization products. The literature from January to December 2013 is reviewed.
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32
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Atolani O, Olatunji GA. Isolation and evaluation of antiglycation potential of polyalthic acid (furano-terpene) from Daniella oliveri. J Pharm Anal 2014; 4:407-411. [PMID: 29403907 PMCID: PMC5761355 DOI: 10.1016/j.jpha.2014.05.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2014] [Revised: 05/06/2014] [Accepted: 05/08/2014] [Indexed: 11/24/2022] Open
Abstract
A furano-diterpene (polyalthic acid) was isolated as a major stable compound for the first time from the oleoresin of the Daniella oliveri of the family Caesalpiniacea through column chromatography fractionation. Polyalthic acid was characterized using data obtained from EIMS, HREIMS, ESI-MS, MALDI-MS as well as 1D and 2D NMR and it was evaluated for its potential to inhibit the formation of advanced glycation end-products (AGEs) using a standard in vitro antiglycation procedure. Polyalthic acid indicated a negative antiglycation potential compared to standard inhibitor that has 85% inhibition, which is an indication that polyalthic acid may not contribute to the antiglycation activity of the plant as acclaimed in folkloric medicine. The negative antiglycation observed could indicate that the polyalthic acid could trigger glycation, thereby subjecting users to various degrees of complications. The bioactivity evaluation on molinspiration evaluator indicated that polyalthic acid could be a potential drug candidate. The biological and chemical insights gained on polyalthic acid provide a good basis for future research.
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Affiliation(s)
- Olubunmi Atolani
- Department of Chemical Sciences, Redeemer׳s University, P.M.B. 3005, Redemption Camp, Mowe, Ogun State, Nigeria.,Department of Chemistry, University of Ilorin, P.M.B. 1515, Ilorin, Nigeria
| | - Gabriel A Olatunji
- Department of Chemistry, University of Ilorin, P.M.B. 1515, Ilorin, Nigeria
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33
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Norcassane- and cassane-type furanoditerpenoids from the seeds of Caesalpinia sappan. Fitoterapia 2014; 98:22-6. [DOI: 10.1016/j.fitote.2014.07.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2014] [Revised: 06/20/2014] [Accepted: 07/04/2014] [Indexed: 11/21/2022]
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34
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Ma G, Sun Z, Sun Z, Yuan J, Wei H, Yang J, Wu H, Xu X. Antimalarial diterpene alkaloids from the seeds of Caesalpinia minax. Fitoterapia 2014; 95:234-9. [DOI: 10.1016/j.fitote.2014.04.001] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2014] [Revised: 03/30/2014] [Accepted: 04/01/2014] [Indexed: 11/30/2022]
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35
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Feng J, Zhang JL, Zhang RR, Ruan LJ, Jiang RW. 1-Deacet-oxy-1-oxocaesalmin. Acta Crystallogr Sect E Struct Rep Online 2014; 70:o662. [PMID: 24940245 PMCID: PMC4051044 DOI: 10.1107/s1600536814011040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2014] [Accepted: 05/13/2014] [Indexed: 11/29/2022]
Abstract
The title compound, C24H30O7, is a diterpenoid isolated from the seeds of Caesalpinia minax. It consists of two cyclohexane rings (A and B), one unsaturated six-membered ring (C) and one furan ring (D). The stereochemistry of the ring junctures is A/B trans and B/C trans. Rings A and B have normal chair conformations while C adopts a twisted half-chair conformation due to fusion to the furan ring which is planar [r.m.s. deviation = 0.0009 (2) Å]. In the crystal, hydroxyl O—H⋯Ocarbonyl hydrogen bonds link the molecules into a chain structure extending along the a-axis direction.
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Affiliation(s)
- Juan Feng
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine and New Drugs Research, Institute of Traditional Chinese Medicine and Natural Products, Jinan University, Guangzhou 510632, People's Republic of China
| | - Jian-Long Zhang
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine and New Drugs Research, Institute of Traditional Chinese Medicine and Natural Products, Jinan University, Guangzhou 510632, People's Republic of China
| | - Rong-Rong Zhang
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine and New Drugs Research, Institute of Traditional Chinese Medicine and Natural Products, Jinan University, Guangzhou 510632, People's Republic of China
| | - Li-Jun Ruan
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine and New Drugs Research, Institute of Traditional Chinese Medicine and Natural Products, Jinan University, Guangzhou 510632, People's Republic of China
| | - Ren-Wang Jiang
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine and New Drugs Research, Institute of Traditional Chinese Medicine and Natural Products, Jinan University, Guangzhou 510632, People's Republic of China
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36
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Novel dinorcassane- and cassane-type diterpenes from the seeds of Caesalpinia minax. Fitoterapia 2014; 94:172-6. [DOI: 10.1016/j.fitote.2014.01.021] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2013] [Revised: 01/18/2014] [Accepted: 01/20/2014] [Indexed: 11/18/2022]
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37
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Sun ZC, Ma GX, Yuan JQ, Wei H, Wu HF, Sun ZH, Wang GH, Yang JS, Xu XD. Two new degradative cassane-type diterpenes isolated from Caesalpinia minax. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2013; 16:187-191. [PMID: 24325258 DOI: 10.1080/10286020.2013.864282] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2013] [Accepted: 11/06/2013] [Indexed: 06/03/2023]
Abstract
Cassane-type diterpenes are main bioactive constituents of Caesalpinia minax HANCE. As a part of our ongoing chemical investigation of C. minax, two new degradative cassane-type diterpenes, named caesalpins I (1) and J (2), were isolated from the EtOAc extract of the seeds of C. minax. The structures were elucidated by means of spectroscopic analysis.
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Affiliation(s)
- Zhao-Cui Sun
- a Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine , Ministry of Education, Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences , Beijing , 100193 , China
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