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Liu YP, Li YJ, Zhao YY, Guo JM, Liu YY, Wang XP, Shen ZY, Qiang L, Fu YH. Carbazole alkaloids from the fruits of Clausena anisum-olens with potential PTP1B and α-glucosidase inhibitory activities. Bioorg Chem 2021; 110:104775. [PMID: 33725509 DOI: 10.1016/j.bioorg.2021.104775] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2020] [Revised: 11/06/2020] [Accepted: 02/21/2021] [Indexed: 11/18/2022]
Abstract
The phytochemical investigation on the fruits of Clausena anisum-olens led to the isolation of 18 carbazole alkaloids (1-18), containing three new ones, clausenanisines A-C (1-3), and three new naturally occurring carbazole alkaloids, clausenanisines D-F (4-6), as well as 12 known analogues (7-18). The chemical structures of clausenanisines A-F (1-6) were elucidated by extensive spectroscopic methods. Notably, clausenanisine A (1) was a novel carbazole alkaloid with a unique five-membered cyclic ether, while clausenanisine E (5) is an unusual carbazole alkaloid owning an unprecedented naturally occurring carbon skeleton possessing 14 carbon atoms. The known carbazole alkaloids (7-18) were identified by the comparison of their spectral data with those data reported in the literature. All known carbazole alkaloids 7-18 were isolated from C. anisum-olens for the first time. Moreover, all isolated compounds 1-18 were assessed for their protein tyrosine phosphatase 1B (PTP1B) and α-glucosidase inhibitory activities in vitro. Compounds 1-18 exhibited remarkable PTP1B inhibitory activities with IC50 values in the range of 0.58 ± 0.05 to 38.48 ± 0.32 μM, meanwhile, compounds 1-18 displayed significant α-glucosidase inhibitory activities with IC50 values ranging from 3.28 ± 0.16 to 192.23 ± 0.78 μM. These research results imply that the separation and identification of these carbazole alkaloids showing notable PTP1B and α-glucosidase inhibitory activities from the fruits of C. anisum-olens can be very significant for discovering and developing new PTP1B inhibitors and α-glucosidase inhibitors for the treatment of diabetes mellitus.
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Affiliation(s)
- Yan-Ping Liu
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education, Hainan Normal University, Haikou 571158, PR China; Key Laboratory of Research and Development of Tropical Fruit and Vegetable of Haikou City, Hainan Normal University, Haikou 571158, PR China; State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, PR China; Engineering Research Center for Industrialization of Southern Medicinal Plants Resources of Hainan province, Hainan Normal University, Haikou 571158, PR China; Key Laboratory of Tropical Medicinal Plant Chemistry of Hainan Province, Hainan Normal University, Haikou 571158, PR China
| | - Yu-Jie Li
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education, Hainan Normal University, Haikou 571158, PR China; State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, PR China; Engineering Research Center for Industrialization of Southern Medicinal Plants Resources of Hainan province, Hainan Normal University, Haikou 571158, PR China; Key Laboratory of Tropical Medicinal Plant Chemistry of Hainan Province, Hainan Normal University, Haikou 571158, PR China
| | - Ying-Ying Zhao
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education, Hainan Normal University, Haikou 571158, PR China; State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, PR China; Engineering Research Center for Industrialization of Southern Medicinal Plants Resources of Hainan province, Hainan Normal University, Haikou 571158, PR China; Key Laboratory of Tropical Medicinal Plant Chemistry of Hainan Province, Hainan Normal University, Haikou 571158, PR China
| | - Jia-Ming Guo
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education, Hainan Normal University, Haikou 571158, PR China; State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, PR China; Engineering Research Center for Industrialization of Southern Medicinal Plants Resources of Hainan province, Hainan Normal University, Haikou 571158, PR China; Key Laboratory of Tropical Medicinal Plant Chemistry of Hainan Province, Hainan Normal University, Haikou 571158, PR China
| | - Yun-Yao Liu
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, PR China
| | - Xiao-Ping Wang
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, PR China
| | - Zhang-Yang Shen
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education, Hainan Normal University, Haikou 571158, PR China; State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, PR China; Engineering Research Center for Industrialization of Southern Medicinal Plants Resources of Hainan province, Hainan Normal University, Haikou 571158, PR China; Key Laboratory of Tropical Medicinal Plant Chemistry of Hainan Province, Hainan Normal University, Haikou 571158, PR China
| | - Lei Qiang
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, PR China
| | - Yan-Hui Fu
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education, Hainan Normal University, Haikou 571158, PR China; Key Laboratory of Research and Development of Tropical Fruit and Vegetable of Haikou City, Hainan Normal University, Haikou 571158, PR China; State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, PR China; Engineering Research Center for Industrialization of Southern Medicinal Plants Resources of Hainan province, Hainan Normal University, Haikou 571158, PR China; Key Laboratory of Tropical Medicinal Plant Chemistry of Hainan Province, Hainan Normal University, Haikou 571158, PR China.
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Liang LF, Chen WT, Mollo E, Yao LG, Wang HY, Xiao W, Guo YW. Sarcophytrols G - L, Novel Minor Metabolic Components from South China Sea Soft Coral Sarcophyton trocheliophorum Marenzeller. Chem Biodivers 2017; 14. [PMID: 28323380 DOI: 10.1002/cbdv.201700079] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Accepted: 03/17/2017] [Indexed: 12/31/2022]
Abstract
Minor metabolic components, six new cembranoids sarcophytrols G - L (1 - 6) along with two known related analogues 7 and 8, were isolated from the South China Sea soft coral Sarcophyton trocheliophorum. Their structures were elucidated by extensive spectroscopic analyses (1D-, 2D-NMR, and ESI-MS) as well as comparison with literature data. As part of our ongoing research project for discovering bioactive substances from Chinese marine invertebrates, compounds 1 - 8 were tested for their inhibitory activity against protein tyrosine phosphatase 1B (PTP1B), a key target for the treatment of Type-II diabetes and obesity. However, none of them exhibited potent PTP1B inhibitory activities.
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Affiliation(s)
- Lin-Fu Liang
- College of Material Science and Engineering, Central South University of Forestry and Technology, Changsha, 410004, P. R. China.,State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Zhang Jiang Hi-Tech park, Shanghai, 201203, P. R. China
| | - Wen-Ting Chen
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Zhang Jiang Hi-Tech park, Shanghai, 201203, P. R. China
| | - Ernesto Mollo
- Institute of Biomolecular Chemistry (ICB)-CNR, Via Campi Flegrei, 34, IT-80078, Pozzuoli, Naples
| | - Li-Gong Yao
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Zhang Jiang Hi-Tech park, Shanghai, 201203, P. R. China
| | - He-Yao Wang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Zhang Jiang Hi-Tech park, Shanghai, 201203, P. R. China
| | - Wei Xiao
- Jiangsu Kanion Pharmaceutical Co., Ltd., Lianyungang, 222001, P. R. China
| | - Yue-Wei Guo
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Zhang Jiang Hi-Tech park, Shanghai, 201203, P. R. China
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