1
|
Parui N, Mandal T, Maiti S, Dash J. Efficient Synthesis of Cyclohepta[b]indoles and Cyclohepta[b]indole-Indoline Conjugates via RCM, Hydrogenation, and Acid-Catalyzed Ring Expansion: A Biomimetic Approach. Chemistry 2024; 30:e202401059. [PMID: 38623002 DOI: 10.1002/chem.202401059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Accepted: 04/15/2024] [Indexed: 04/17/2024]
Abstract
Cyclohepta[b]indoles, prevalent in natural products and pharmaceuticals, are conventionally accessed via metal or Lewis acid-mediated cycloadditions with prefunctionalized substrates. Our study introduces an innovative sequential catalytic assembly for synthesizing cyclohepta[b]indoles from readily available isatin derivatives. The process involves three catalytic sequences: ring-closing metathesis, catalytic hydrogenation, and acid-catalyzed ring expansion. The RCM of 2,2-dialkene-3-oxindoles, formed by butenyl Grignard addition to 3-allyl-3-hydroxy-2-oxindoles, yields versatile spirocyclohexene-3-oxindole derivatives. These derivatives undergo further transformations, including dibromination, dihydroxylation, epoxidation, Wacker oxidation at the double bond. Hydrogenation of spirocyclohexene-3-oxindole yields spirocyclohexane-3-oxindoles. Their subsequent acid-catalyzed ring expansion/aromatization, dependent on the acid catalyst, results in either cyclohepta[b]indoles or cyclohepta[b]indole-indoline conjugates, adding a unique synthetic dimension. The utility of this methodology is exemplified through the synthesis of an A-FABP inhibitor, showcasing its potential in pharmaceutical applications.
Collapse
Affiliation(s)
- Nabin Parui
- School of chemical sciences, Indian Association for the Cultivation of Science, Jadavpur, 700032, Kolkata, India
| | - Tirtha Mandal
- School of chemical sciences, Indian Association for the Cultivation of Science, Jadavpur, 700032, Kolkata, India
| | - Sandip Maiti
- School of chemical sciences, Indian Association for the Cultivation of Science, Jadavpur, 700032, Kolkata, India
| | - Jyotirmayee Dash
- School of chemical sciences, Indian Association for the Cultivation of Science, Jadavpur, 700032, Kolkata, India
| |
Collapse
|
2
|
Traxler F, Zhang H, Mahavorasirikul W, Krivanek K, Cai XH, Aiyakool W, Pfeiffer M, Brecker L, Schinnerl J. Two Novel Iboga-Type and an Oxindole Glucuronide Alkaloid from Tabernaemontana peduncularis Disclose Related Biosynthetic Pathways to Tabernaemontana divaricata. Molecules 2023; 28:6664. [PMID: 37764440 PMCID: PMC10535570 DOI: 10.3390/molecules28186664] [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: 08/17/2023] [Revised: 09/12/2023] [Accepted: 09/12/2023] [Indexed: 09/29/2023] Open
Abstract
Phytochemical investigation of the two Tabernaemontana species (Apocynaceae) T. peduncularis Wall. and T. divaricata (L.) R.Br. ex Roem. & Schult. indicated closely related biosynthetic pathways leading to lipophilic and hydrophilic alkaloids. In total, 18 specialized metabolites comprising indole-derived alkaloid aglycones, three oxindole-derived alkaloid glycosides, and two iridoid glucosides could be identified in the studied species. Among the alkaloids, the two Iboga-type alkaloids 3,7-coronaridine isoindolenine, coronaridine 3,4-iminium and a javaniside derivative bearing a glucuronic acid, named javanuronic acid, could be described by spectroscopic and spectrometric methods for the first time. A docking experiment using alpha-fold was performed to generate a protein model of the enzyme 7-deoxyloganetic acid glucosyl transferase. Performed bioassays exhibited a growth reduction of neonate Spodoptera littoralis larvae and reduced cell viability of HepG2 cells of the extracts containing Iboga alkaloids, whilst the javaniside derivatives containing hydrophilic fraction did not show any effects. These findings indicate a high flexibility in the formation of bioactive indole alkaloid aglycones by Tabernaemontana species and also evidence similar accumulation trends in both species as well as indicate that biosynthetic routes leading to oxindole alkaloids like javanisides are more widespread than reported. Furthermore, the incorporation of the three novel compounds into potential biosynthetic pathways is discussed.
Collapse
Affiliation(s)
- Florian Traxler
- Department of Organic Chemistry, University of Vienna, Währinger Strasse 38, A-1090 Vienna, Austria; (F.T.); (K.K.)
- Vienna Doctoral School in Chemistry, University of Vienna, Währinger Strasse 42, A-1090 Vienna, Austria
| | - Haoqi Zhang
- Department of Organic Chemistry, University of Vienna, Währinger Strasse 38, A-1090 Vienna, Austria; (F.T.); (K.K.)
- Vienna Doctoral School in Chemistry, University of Vienna, Währinger Strasse 42, A-1090 Vienna, Austria
| | - Wiratchanee Mahavorasirikul
- Drug Discovery and Development Center, Advanced Science and Technologies, Thammasat University (Rangsit Campus), Pathumthani 12121, Thailand;
- Thammasat University Research Unit in Cannabis and Herbal Products Innovation, Thammasat University (Rangsit Campus), Pathumthani 12121, Thailand
| | - Katharina Krivanek
- Department of Organic Chemistry, University of Vienna, Währinger Strasse 38, A-1090 Vienna, Austria; (F.T.); (K.K.)
- Department of Botany and Biodiversity Research, University of Vienna, Rennweg 14, A-1030 Vienna, Austria
| | - Xiang-Hai Cai
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China;
| | - Wichai Aiyakool
- Department of Botany, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand;
- Department of Agriculture, Ministry of Agriculture and Cooperatives, Bangkok 10900, Thailand
| | - Martin Pfeiffer
- Institute of Biotechnology and Biochemical Engineering, Graz University of Technology, A-8010 Graz, Austria;
| | - Lothar Brecker
- Department of Organic Chemistry, University of Vienna, Währinger Strasse 38, A-1090 Vienna, Austria; (F.T.); (K.K.)
| | - Johann Schinnerl
- Department of Botany and Biodiversity Research, University of Vienna, Rennweg 14, A-1030 Vienna, Austria
| |
Collapse
|
3
|
Fan K, Zhang L, Tan B, Njateng GSS, Qin M, Guo R, Huang X, Ding CF, Gao W, Zhang R, Yu H. Antimicrobial indole alkaloids from Tabernaemontana corymbosa. Chin J Nat Med 2023; 21:146-153. [PMID: 36871982 DOI: 10.1016/s1875-5364(23)60393-0] [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: 08/27/2022] [Indexed: 03/07/2023]
Abstract
Four unreported monoterpene indole alkaloids, tabernaecorymines B-E (1-4), together with twenty-one known indole alkaloids (5-25) were obtained from the stem bark of Tabernaemontana corymbosa. Their structures and absolute configurations were elucidated by extensive spectroscopy, quantum chemical calculations, DP4+ probability analyses and Mo2(OAc)4-induced electronic circular dichroism experiment. The antibacterial and antifungal activities of these compounds were evaluated and some of them showed significant activity against Staphylococcus aureus,Bacillus subtilis, Streptococcus dysgalactiae and Candida albicans.
Collapse
Affiliation(s)
- Kun Fan
- School of Pharmaceutical Sciences, Department of Zoology & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming 650500, China
| | - Lanchun Zhang
- School of Pharmaceutical Sciences, Department of Zoology & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming 650500, China
| | - Bangyin Tan
- School of Pharmaceutical Sciences, Department of Zoology & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming 650500, China
| | - Guy S S Njateng
- Department of Biochemistry, Faculty of Science, University of Dschang, Dschang, Cameroon
| | - Malong Qin
- School of Pharmaceutical Sciences, Department of Zoology & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming 650500, China
| | - Ruirong Guo
- School of Pharmaceutical Sciences, Department of Zoology & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming 650500, China
| | - Xiaojuan Huang
- School of Pharmaceutical Sciences, Department of Zoology & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming 650500, China
| | - Cai-Feng Ding
- School of Pharmaceutical Sciences, Department of Zoology & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming 650500, China
| | - Weimin Gao
- School of Pharmaceutical Sciences, Department of Zoology & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming 650500, China.
| | - Rongping Zhang
- School of Chinese Materia Medica and Yunnan Key Laboratory of Southern Medicinal Resources, Yunnan University of Traditional Chinese Medicine, Kunming 650500, China.
| | - Haofei Yu
- School of Pharmaceutical Sciences, Department of Zoology & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming 650500, China.
| |
Collapse
|
4
|
Li S, Han LL, Huang KP, Ma YH, Guo LL, Guo Y, Ran X, Yao YG, Hao XJ, Luo R, Zhang Y. New Monoterpenoid Indole Alkaloids from Tabernaemontana crassa Inhibit β-Amyloid42 Production and Phospho-Tau (Thr217). Int J Mol Sci 2023; 24:ijms24021487. [PMID: 36675001 PMCID: PMC9862887 DOI: 10.3390/ijms24021487] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 01/05/2023] [Accepted: 01/10/2023] [Indexed: 01/14/2023] Open
Abstract
Eleven monoterpenoid indole alkaloids, including three new ones, tabercrassines A-C (1-3), were isolated from the seeds of Tabernaemontana crassa. Tabercrassine A (1) is an ibogan-ibogan-type bisindole alkaloid which is formed by the polymerization of two classic ibogan-type monomers through a C3 unit aliphatic chain. Their structures were established by extensive analysis of HRESIMS, NMR, and ECD spectra. Cellular assays showed that alkaloids 1-3 all reduce Aβ42 production and inhibit phospho-tau (Thr217), a new biomarker of Alzheimer's disease [AD] associated with BACE1-, NCSTN-, GSK3β-, and CDK5-mediated pathways, suggesting these alkaloids' potential against AD.
Collapse
Affiliation(s)
- Sheng Li
- Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Ling-Ling Han
- Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Ke-Pu Huang
- Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Ye-Han Ma
- Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Ling-Li Guo
- Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Yarong Guo
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences & Yunnan Province, and KIZ-CUHK Joint Laboratory of Bioresources and Molecular Research in Common Diseases, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650204, China
- School of Life Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230026, China
| | - Xiaoqian Ran
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences & Yunnan Province, and KIZ-CUHK Joint Laboratory of Bioresources and Molecular Research in Common Diseases, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650204, China
- Kunming College of Life Science, University of Chinese Academy of Sciences, Kunming 650201, China
| | - Yong-Gang Yao
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences & Yunnan Province, and KIZ-CUHK Joint Laboratory of Bioresources and Molecular Research in Common Diseases, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650204, China
- Kunming College of Life Science, University of Chinese Academy of Sciences, Kunming 650201, China
| | - Xiao-Jiang Hao
- Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Rongcan Luo
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences & Yunnan Province, and KIZ-CUHK Joint Laboratory of Bioresources and Molecular Research in Common Diseases, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650204, China
- Kunming College of Life Science, University of Chinese Academy of Sciences, Kunming 650201, China
- Correspondence: (R.L.); (Y.Z.)
| | - Yu Zhang
- Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
- Correspondence: (R.L.); (Y.Z.)
| |
Collapse
|
5
|
Li BJ, Ma Y, Qian HS, He HP, Huang CH, Yu GD, Tang BQ. Two new aspidosperma-type monoterpenoid indole alkaloids from Ervatamia officinalis. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2022; 25:1-7. [PMID: 35735254 DOI: 10.1080/10286020.2022.2090345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 06/11/2022] [Accepted: 06/13/2022] [Indexed: 06/15/2023]
Abstract
Two new aspidosperma-type monoterpenoid indole alkaloids, 16-O-methylvoafinine (1) and 14,15-diepi-voafinidine (2) were isolated from the aerial parts of Ervatamia officinalis. Their structures were established by comprehensive spectroscopic analysis including 1D and 2D NMR, HR-ESI-MS, and electronic circular dichroism calculation. The isolated compounds were evaluated for cytotoxic activities against HepG2, MCF-7, and A549 cell lines by CCK-8 assay.
Collapse
Affiliation(s)
- Bao-Jing Li
- College of Traditional Chinese Medicine, Yunnan University of Chinese Medicine, Kunming 650500, China
| | - Yan Ma
- Department of Medical Science, Shunde Polytechnic, Foshan 528333, China
| | - Hai-Shan Qian
- College of Traditional Chinese Medicine, Yunnan University of Chinese Medicine, Kunming 650500, China
| | - Hong-Ping He
- College of Traditional Chinese Medicine, Yunnan University of Chinese Medicine, Kunming 650500, China
| | - Cui-Hong Huang
- Department of Medical Science, Shunde Polytechnic, Foshan 528333, China
| | - Guo-Dong Yu
- Department of Medical Science, Shunde Polytechnic, Foshan 528333, China
| | - Ben-Qin Tang
- Department of Medical Science, Shunde Polytechnic, Foshan 528333, China
| |
Collapse
|
6
|
Mishra DR, Panda BS, Nayak S, Panda J, Mohapatra S. Recent Advances in the Synthesis of 5‐Membered
N
‐Heterocycles via Rhodium Catalysed Cascade Reactions. ChemistrySelect 2022. [DOI: 10.1002/slct.202200531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Deepak R. Mishra
- Organic Synthesis Laboratory Department of Chemistry Ravenshaw University Cuttack 753003 Odisha India
| | - Bhabani S. Panda
- Organic Synthesis Laboratory Department of Chemistry Ravenshaw University Cuttack 753003 Odisha India
| | - Sabita Nayak
- Organic Synthesis Laboratory Department of Chemistry Ravenshaw University Cuttack 753003 Odisha India
| | - Jasmine Panda
- Organic Synthesis Laboratory Department of Chemistry Ravenshaw University Cuttack 753003 Odisha India
| | - Seetaram Mohapatra
- Organic Synthesis Laboratory Department of Chemistry Ravenshaw University Cuttack 753003 Odisha India
| |
Collapse
|
7
|
Monoterpene indole alkaloids from Melodinus cochinchinensis (Lour.) Merr. Fitoterapia 2021; 157:105118. [PMID: 34974140 DOI: 10.1016/j.fitote.2021.105118] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 12/24/2021] [Accepted: 12/27/2021] [Indexed: 11/21/2022]
Abstract
Melodicochinines A - D (1-4), four new monoterpene indole alkaloids (MIAs), along with 21 known ones, were isolated from the stems and twigs of Melodinus cochinchinensis. Their structures were elucidated on the basis of extensive spectroscopic analysis. A ubiquitin-rhodamine 110 assay showed that 11-methyloxytabersonine had potential inhibitory effect against ubiquitin-specific protease 7 (USP7).
Collapse
|
8
|
Yu Y, Bao MF, Huang SZ, Wu J, Cai XH. Vincan- and eburnan-type alkaloids from Tabernaemontana bovina and their hypoglycemic activity. PHYTOCHEMISTRY 2021; 190:112859. [PMID: 34218044 DOI: 10.1016/j.phytochem.2021.112859] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 06/26/2021] [Accepted: 06/27/2021] [Indexed: 06/13/2023]
Abstract
Thirty-one Vincan- and two Eburnan-type alkaloids were isolated from the aerial parts of Tabernaemontana bovina, whereas 20 of them are described the first time. Within the purified alkaloids, the firstly described taberbovcamine A features a 6/5/6/6/5 ring system. All the chemical structures were elucidated by employing extensive spectroscopic, computational electronic circular dichroism and X-ray diffraction methods. The two Eburnan-type alkaloids, 10,11-dimethoxy-16-O-methyllisoeburnamenine and 10,11-dimethoxy-isoeburnamenine were simultaneously identified by using the mentioned spectroscopic methods. Within the identified alkaloids, 10-hydroxy-14,15-didehydrovincanmine, 14,15-didehydrovincanmine, 14,15-didehydroapovincanmine, and criocerine increased the glucose consumption in a L6 myotube model.
Collapse
Affiliation(s)
- Yang Yu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China
| | - Mei-Fen Bao
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China
| | - Sheng-Zhuo Huang
- Hainan Key Laboratory for Research and Development of Natural Products from Li Folk Medicine, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agriculture Sciences, Haikou, 571101, People's Republic of China
| | - Jing Wu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China
| | - Xiang-Hai Cai
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China.
| |
Collapse
|
9
|
Chen J, Yu Y, Wu J, Bao MF, Kongkiatpaiboon S, Schinnerl J, Cai XH. Trimeric and dimeric Aspidosperma-type alkaloids from leaves of Tabernaemontana divaricata 'Dwaft'. Bioorg Chem 2021; 116:105314. [PMID: 34500306 DOI: 10.1016/j.bioorg.2021.105314] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Revised: 07/30/2021] [Accepted: 08/28/2021] [Indexed: 11/26/2022]
Abstract
Continued interest in bioactive monoterpenoid indole alkaloids and the purpose to explore the artificial cultivation influence on the chemical composition in the same plant species, 8 undescribed Aspidosperma-type alkaloids including two unprecedented trimers, taberdivarines A-B (1-2), and six new dimers, taberdivarines CH (3-8), together with 9 known bisindoles were isolated from the leaves of Tabernaemontana divaricata 'Dwaft'. Notably, taberdivarines A and B were the first cases of Aspidosperma-Aspidosperma-Aspidosperma-type alkaloids with furan ring linkage patterns of the natural products. Their structures were elucidated by comprehensive spectroscopic analyse. Compounds 1-8 were screened for the cytotoxicity against three human cancer cell lines, SMMC-7721, HT-29 and A549. Among them, Compound 6 exhibited significant activity against three cell lines with IC50 values of 0.30, 0.75 and 3.41 μM, respectively (IC50 = 3.02, 0.14 and 2.23 μM for the positive control, vinorelbine). Compound 1, 3, 4, 6, 7 and 8 also expressed varying degrees of activity. The structure-activity relationships (SARs) of these alkaloids were discussed.
Collapse
Affiliation(s)
- Jing Chen
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yang Yu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Jing Wu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Mei-Fen Bao
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Sumet Kongkiatpaiboon
- Drug Discovery and Development Center, Office of Advanced Science and Technology, Thammasat University, Pathum Thani 12121, Thailand
| | - Johann Schinnerl
- Chemodiversity Research Group, Division of Systematic and Evolutionary Botany, University of Vienna, Rennweg 14, A-1030 Vienna, Austria
| | - Xiang-Hai Cai
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China.
| |
Collapse
|
10
|
Mohammed AE, Abdul-Hameed ZH, Alotaibi MO, Bawakid NO, Sobahi TR, Abdel-Lateff A, Alarif WM. Chemical Diversity and Bioactivities of Monoterpene Indole Alkaloids (MIAs) from Six Apocynaceae Genera. Molecules 2021; 26:488. [PMID: 33477682 PMCID: PMC7831967 DOI: 10.3390/molecules26020488] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Revised: 01/09/2021] [Accepted: 01/11/2021] [Indexed: 01/06/2023] Open
Abstract
By the end of the twentieth century, the interest in natural compounds as probable sources of drugs has declined and was replaced by other strategies such as molecular target-based drug discovery. However, in the recent times, natural compounds regained their position as extremely important source drug leads. Indole-containing compounds are under clinical use which includes vinblastine and vincristine (anticancer), atevirdine (anti-HIV), yohimbine (erectile dysfunction), reserpine (antihypertension), ajmalicine (vascular disorders), ajmaline (anti-arrhythmic), vincamine (vasodilator), etc. Monoterpene Indole Alkaloids (MIAs) deserve the curiosity and attention of researchers due to their chemical diversity and biological activities. These compounds were considered as an impending source of drug-lead. In this review 444 compounds, were identified from six genera belonging to the family Apocynaceae, will be discussed. These genera (Alstonia, Rauvolfia, Kopsia, Ervatamia, and Tabernaemontana, and Rhazya) consist of 400 members and represent 20% of Apocynaceae species. Only 30 (7.5%) species were investigated, whereas the rest are promising to be investigated. Eleven bioactivities, including antibacterial, antifungal, anti-inflammatory and immunosuppressant activities, were reported. Whereas cytotoxic effect represents 47% of the reported activities. Convincingly, the genera selected in this review are a wealthy source for future anticancer drug lead.
Collapse
Affiliation(s)
- Afrah E. Mohammed
- Department of Biology, Faculty of Science, Princess Nourah Bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia;
| | - Zainab H. Abdul-Hameed
- Department of Chemistry, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia; (Z.H.A.-H.); (N.O.B.); (T.R.S.)
| | - Modhi O. Alotaibi
- Department of Biology, Faculty of Science, Princess Nourah Bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia;
| | - Nahed O. Bawakid
- Department of Chemistry, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia; (Z.H.A.-H.); (N.O.B.); (T.R.S.)
| | - Tariq R. Sobahi
- Department of Chemistry, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia; (Z.H.A.-H.); (N.O.B.); (T.R.S.)
| | - Ahmed Abdel-Lateff
- Department of Natural Products and Alternative Medicine, Faculty of Pharmacy, King Abdulaziz University, P.O. Box 80260, Jeddah 21589, Saudi Arabia;
- Department of Pharmacognosy, Faculty of Pharmacy, Minia University, Minia 61519, Egypt
| | - Walied M. Alarif
- Department of Marine Chemistry, Faculty of Marine Sciences, King Abdulaziz University, P.O. Box 80207, Jeddah 21589, Saudi Arabia
| |
Collapse
|
11
|
Cheng XF, Fei F, Li Y, Hou YM, Zhou X, Wang XS. Ligand-Accelerated Palladium(II)-Catalyzed Enantioselective Amination of C(sp 2)-H Bonds. Org Lett 2020; 22:6394-6398. [PMID: 32806216 DOI: 10.1021/acs.orglett.0c02216] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The first example of the Pd(II)-catalyzed enantioselective amination of aryl C-H bonds is reported. The key to the successful realization of this asymmetric catalytic transformation was the identification of mono-N-protected α-amino-O-methylhydroxamic acid (MPAHA) ligands, which promote reactivity under mild conditions and control enantioselectivity. The counteranions in the solvent medium, hexafluoroacetylacetate and acetate, were also found to play key roles in stereocontrol and reactivity enhancement.
Collapse
Affiliation(s)
- Xiu-Fen Cheng
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, China.,College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University, Jinan 250014, P. R. China
| | - Fan Fei
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, China
| | - Yan Li
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, China
| | - Yi-Ming Hou
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, China
| | - Xin Zhou
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, China
| | - Xi-Sheng Wang
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, China
| |
Collapse
|
12
|
Zhang Y, Ding X, Yuan YX, Guo LL, Hao XJ. Cytotoxic Monoterpenoid Indole Alkaloids from Tabernaemontana corymbosa as Potent Autophagy Inhibitors by the Attenuation of Lysosomal Acidification. JOURNAL OF NATURAL PRODUCTS 2020; 83:1432-1439. [PMID: 32356659 DOI: 10.1021/acs.jnatprod.9b00856] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Twenty-six alkaloids, including the new taberines A-I (1-9), were obtained from Tabernaemontana corymbosa. The structures and absolute configurations were elucidated via MS, NMR, and ECD spectroscopic data analyses. Alkaloids 1-4 are new vobasinyl-ibogan alkaloids, and 1 is characterized by an unusual 1,3-oxazinane moiety. Alkaloids 4 and 16 exhibited moderate cytotoxic potency against various human cancer cell lines, while 4, 10, 11, 13, 14, and 16 showed attenuation of lysosomal acidification activity (EC50: 12.9-29.8 μM), thereby inhibiting autophagic flux.
Collapse
Affiliation(s)
- Yu Zhang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, People's Republic of China
| | - Xiao Ding
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, People's Republic of China
| | - Yu-Xi Yuan
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, People's Republic of China
| | - Ling-Li Guo
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, People's Republic of China
| | - Xiao-Jiang Hao
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, People's Republic of China
| |
Collapse
|
13
|
Zhang J, Li H, Li Y, Li ZW, Sang CC, Gao MH, Zhang DM, Zhang XQ, Ye WC. Four new corynanthe-type alkaloids from the roots of Alstonia scholaris. Chin J Nat Med 2020; 17:918-923. [PMID: 31882046 DOI: 10.1016/s1875-5364(19)30113-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Indexed: 02/05/2023]
Abstract
Four new corynanthe-type alkaloids, meloslines C-F (1-4), together with four known ones (5-8) were isolated from the roots of Alstonia scholaris. Their structures including absolute configurations were elucidated by extensive spectroscopic analysis and electronic circular dichroism (ECD) calculation. Compounds 1 and 2 exhibited potent vasorelaxant activity on endothelium-intact renal arteries precontracted with KCl.
Collapse
Affiliation(s)
- Jian Zhang
- Institute of Traditional Chinese Medicine & Natural Products, and Guangdong Provincial Engineering Research Center for Modernization of TCM, College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Hua Li
- Chinese Patent Medicine Department, Guangdong Institute for Drug Control, Guangzhou 510663, China
| | - Yong Li
- Institute of Traditional Chinese Medicine & Natural Products, and Guangdong Provincial Engineering Research Center for Modernization of TCM, College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Zi-Wei Li
- Institute of Traditional Chinese Medicine & Natural Products, and Guangdong Provincial Engineering Research Center for Modernization of TCM, College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Chen-Chen Sang
- Institute of Traditional Chinese Medicine & Natural Products, and Guangdong Provincial Engineering Research Center for Modernization of TCM, College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Mei-Hua Gao
- Chinese Patent Medicine Department, Guangdong Institute for Drug Control, Guangzhou 510663, China
| | - Dong-Mei Zhang
- Institute of Traditional Chinese Medicine & Natural Products, and Guangdong Provincial Engineering Research Center for Modernization of TCM, College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Xiao-Qi Zhang
- Institute of Traditional Chinese Medicine & Natural Products, and Guangdong Provincial Engineering Research Center for Modernization of TCM, College of Pharmacy, Jinan University, Guangzhou 510632, China.
| | - Wen-Cai Ye
- Institute of Traditional Chinese Medicine & Natural Products, and Guangdong Provincial Engineering Research Center for Modernization of TCM, College of Pharmacy, Jinan University, Guangzhou 510632, China.
| |
Collapse
|
14
|
Yu Y, Zhao SM, Bao MF, Cai XH. An Aspidosperma-type alkaloid dimer from Tabernaemontana bovina as a candidate for the inhibition of microglial activation. Org Chem Front 2020. [DOI: 10.1039/d0qo00296h] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
As a representative of twelve undescribed Aspidosperma-type alkaloid dimers, tabernaemontine F (6) inhibited microglial activation by blocking P38 MAPK activation, revealing a potential candidate for chronic neurodegenerative diseases.
Collapse
Affiliation(s)
- Yang Yu
- State Key Laboratory of Phytochemistry and Plant Resources in West China
- Kunming Institute of Botany
- Chinese Academy of Sciences
- Kunming 650201
- China
| | | | - Mei-Fen Bao
- State Key Laboratory of Phytochemistry and Plant Resources in West China
- Kunming Institute of Botany
- Chinese Academy of Sciences
- Kunming 650201
- China
| | - Xiang-Hai Cai
- State Key Laboratory of Phytochemistry and Plant Resources in West China
- Kunming Institute of Botany
- Chinese Academy of Sciences
- Kunming 650201
- China
| |
Collapse
|
15
|
Yu Y, Bao MF, Wang Y, Zeng Y, Cai XH. Tacamine-type alkaloids from Tabernaemontana bovina together with their configuration determination. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.130562] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
16
|
Shi BB, Chen J, Bao MF, Zeng Y, Cai XH. Alkaloids isolated from Tabernaemontana bufalina display xanthine oxidase inhibitory activity. PHYTOCHEMISTRY 2019; 166:112060. [PMID: 31302343 DOI: 10.1016/j.phytochem.2019.112060] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Revised: 06/19/2019] [Accepted: 06/26/2019] [Indexed: 06/10/2023]
Abstract
Continued interest in bioactive alkaloids led to the isolation of four undescribed alkaloids along with 74 known ones from the aerial parts of Tabernaemontana bufalina Lour. The structures of the yet undescribed alkaloids were elucidated based on NMR, IR, UV, MS and CD spectroscopic data and X-ray crystal diffraction and, according to the plant source, named as taberhaines A-D (1-4). The known compounds comprised of 66 monoterpenoid indole, three carboline and five isoquinoline alkaloids. Among them, the known apparicine inhibited significantly the activity of xanthine oxidase, which plays an important role for gout, with an IC50 value of 0.65 μM, compared to the standard drug allopurinol (IC50 = 0.60 μM).
Collapse
Affiliation(s)
- Bao-Bao Shi
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China; University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China
| | - Jing Chen
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China; University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China
| | - Mei-Fen Bao
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China; University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China
| | - Ying Zeng
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China; Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming, 650201, People's Republic of China.
| | - Xiang-Hai Cai
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China; Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming, 650201, People's Republic of China.
| |
Collapse
|
17
|
Guo S, Pan R, Guan Z, Li P, Cai L, Chen S, Lin A, Yao H. Synthesis of Indole-Fused Polycyclics via Rhodium-Catalyzed Undirected C-H Activation/Alkene Insertion. Org Lett 2019; 21:6320-6324. [PMID: 31386379 DOI: 10.1021/acs.orglett.9b02198] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A Rh(III)-catalyzed undirected C-H activation/alkene insertion to synthesize diversified indole-fused polycyclics has been developed. Intramolecular electrophilic cyclization generated a 3-indolyl rhodium species that went through an aryl-to-aryl 1,4-rhodium migration to realize the C-H activation. The subsequent [4 + 2] carboannulation or hydroarylation of alkenes could be achieved, respectively, by simply adjusting the additives of the reaction.
Collapse
Affiliation(s)
- Songjin Guo
- Department of Medicinal Chemistry, School of Pharmacy and State Key Laboratory of Natural Medicines (SKLNM) , China Pharmaceutical University , Nanjing 210009 , P.R. China
| | - Rui Pan
- Department of Medicinal Chemistry, School of Pharmacy and State Key Laboratory of Natural Medicines (SKLNM) , China Pharmaceutical University , Nanjing 210009 , P.R. China
| | - Zhe Guan
- Department of Medicinal Chemistry, School of Pharmacy and State Key Laboratory of Natural Medicines (SKLNM) , China Pharmaceutical University , Nanjing 210009 , P.R. China
| | - Panpan Li
- Department of Medicinal Chemistry, School of Pharmacy and State Key Laboratory of Natural Medicines (SKLNM) , China Pharmaceutical University , Nanjing 210009 , P.R. China
| | - Libo Cai
- Department of Medicinal Chemistry, School of Pharmacy and State Key Laboratory of Natural Medicines (SKLNM) , China Pharmaceutical University , Nanjing 210009 , P.R. China
| | - Siwei Chen
- Department of Medicinal Chemistry, School of Pharmacy and State Key Laboratory of Natural Medicines (SKLNM) , China Pharmaceutical University , Nanjing 210009 , P.R. China
| | - Aijun Lin
- Department of Medicinal Chemistry, School of Pharmacy and State Key Laboratory of Natural Medicines (SKLNM) , China Pharmaceutical University , Nanjing 210009 , P.R. China
| | - Hequan Yao
- Department of Medicinal Chemistry, School of Pharmacy and State Key Laboratory of Natural Medicines (SKLNM) , China Pharmaceutical University , Nanjing 210009 , P.R. China
| |
Collapse
|
18
|
|
19
|
Yuwen H, Yuan Y, Hao X, He H, Zhang Y. Two new monoterpenoid indole alkaloids from Tabernaemontana divaricata. Nat Prod Res 2018; 33:2139-2144. [PMID: 30445827 DOI: 10.1080/14786419.2018.1488707] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Two new monoterpenoid indole alkaloids, tabervarines A (1) and B (2), along with seven known monoterpenoid indole alkaloids, were isolated from the methanol extract of the twigs and leaves of Tabernaemontana divaricata. The structures including the absolute configurations of the new alkaloids were elucidated based on MS, NMR, and ECD calculation. The in vitro cytotoxic activities of the isolated alkaloids against several human cancer cell lines were also evaluated.
Collapse
Affiliation(s)
- Huansha Yuwen
- a Yunnan University of Traditional Chinese Medicine , Kunming , China.,b State Key Laboratory of Phytochemistry and Plant Resources in West China , Kunming Institute of Botany, Chinese Academy of Sciences , Kunming , China
| | - Yuxi Yuan
- b State Key Laboratory of Phytochemistry and Plant Resources in West China , Kunming Institute of Botany, Chinese Academy of Sciences , Kunming , China
| | - Xiaojiang Hao
- b State Key Laboratory of Phytochemistry and Plant Resources in West China , Kunming Institute of Botany, Chinese Academy of Sciences , Kunming , China
| | - Hongping He
- a Yunnan University of Traditional Chinese Medicine , Kunming , China
| | - Yu Zhang
- b State Key Laboratory of Phytochemistry and Plant Resources in West China , Kunming Institute of Botany, Chinese Academy of Sciences , Kunming , China
| |
Collapse
|
20
|
Liu ZW, Zhang J, Li ST, Liu MQ, Huang XJ, Ao YL, Fan CL, Zhang DM, Zhang QW, Ye WC, Zhang XQ. Ervadivamines A and B, Two Unusual Trimeric Monoterpenoid Indole Alkaloids from Ervatamia divaricata. J Org Chem 2018; 83:10613-10618. [PMID: 30015492 DOI: 10.1021/acs.joc.8b01371] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Ervadivamines A (1) and B (2), two unprecedented trimeric monoterpenoid indole alkaloids, were isolated from Ervatamia divaricata. They are the first examples of vobasine-iboga-vobasine-type alkaloid with both C-C and C-N linkage patterns. Their structures including absolute configurations were fully accomplished by extensive spectroscopic analysis, single-crystal X-ray diffraction, and electric circular dichroism methods. The plausible biogenetic pathways of these trimeric alkaloids were also proposed. In addition, compound 1 exhibited significant cytotoxicity against four cancer cells.
Collapse
Affiliation(s)
- Zhi-Wen Liu
- Institute of Traditional Chinese Medicine and Natural Products, and Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research , Jinan University , Guangzhou 510632 , P. R. China
| | - Jian Zhang
- Institute of Traditional Chinese Medicine and Natural Products, and Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research , Jinan University , Guangzhou 510632 , P. R. China.,State Key Laboratory of Quality Research in Chinese Medicine and Institute of Chinese Medical Sciences , University of Macau , Macao SAR , P. R. China
| | - Song-Tao Li
- Institute of Traditional Chinese Medicine and Natural Products, and Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research , Jinan University , Guangzhou 510632 , P. R. China
| | - Ming-Qun Liu
- Institute of Traditional Chinese Medicine and Natural Products, and Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research , Jinan University , Guangzhou 510632 , P. R. China
| | - Xiao-Jun Huang
- Institute of Traditional Chinese Medicine and Natural Products, and Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research , Jinan University , Guangzhou 510632 , P. R. China
| | - Yun-Lin Ao
- Institute of Traditional Chinese Medicine and Natural Products, and Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research , Jinan University , Guangzhou 510632 , P. R. China
| | - Chun-Lin Fan
- Institute of Traditional Chinese Medicine and Natural Products, and Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research , Jinan University , Guangzhou 510632 , P. R. China
| | - Dong-Mei Zhang
- Institute of Traditional Chinese Medicine and Natural Products, and Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research , Jinan University , Guangzhou 510632 , P. R. China
| | - Qing-Wen Zhang
- State Key Laboratory of Quality Research in Chinese Medicine and Institute of Chinese Medical Sciences , University of Macau , Macao SAR , P. R. China
| | - Wen-Cai Ye
- Institute of Traditional Chinese Medicine and Natural Products, and Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research , Jinan University , Guangzhou 510632 , P. R. China
| | - Xiao-Qi Zhang
- Institute of Traditional Chinese Medicine and Natural Products, and Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research , Jinan University , Guangzhou 510632 , P. R. China
| |
Collapse
|
21
|
Deng Y, Bao MF, Shi BB, Wu J, Cai XH. Three New Indole Alkaloids from Tabernaemontana divaricata. NATURAL PRODUCTS AND BIOPROSPECTING 2018; 8:183-188. [PMID: 29754315 PMCID: PMC5971036 DOI: 10.1007/s13659-018-0166-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Accepted: 05/03/2018] [Indexed: 05/22/2023]
Abstract
Three new monoterpene indole alkaloids, 3α-hydroxymethyl-ibogamine (1), 3α-acetatemethoxyl-ibogamine (2), 16α-hydroxyl-ibogamine (3) together with six known alkaloids were isolated from the branches and leaves of Tabernaemontana divaricata (Apocynaceae). The structures of these alkaloids were determined by spectroscopic analyses. All isolated compounds showed no significant cytotoxicity against SGC-7901 gastric cancer, HeLa, and A-549 lung cancer cell lines (IC50 > 20 µM).
Collapse
Affiliation(s)
- Yan Deng
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China
- University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China
- Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming, 650201, People's Republic of China
| | - Mei-Fen Bao
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China
- Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming, 650201, People's Republic of China
| | - Bao-Bao Shi
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China
- University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China
- Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming, 650201, People's Republic of China
| | - Jing Wu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China
- Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming, 650201, People's Republic of China
| | - Xiang-Hai Cai
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China.
- Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming, 650201, People's Republic of China.
| |
Collapse
|
22
|
Dey A, Mukherjee A, Chaudhury M. Alkaloids From Apocynaceae. STUDIES IN NATURAL PRODUCTS CHEMISTRY 2017. [DOI: 10.1016/b978-0-444-63931-8.00010-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
|
23
|
Leitner C, Gaich T. Total synthesis of (±)-20S-hydroxy-1,2-dehydro-pseudoaspidospermidine via a C–H activation/transannular cyclization strategy. Chem Commun (Camb) 2017; 53:7451-7453. [DOI: 10.1039/c7cc02699d] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A total synthesis to the pseudoaspidospermidine family via a C–H activation/transannular cyclization strategy has been accomplished.
Collapse
Affiliation(s)
| | - Tanja Gaich
- University of Konstanz
- Department of Chemistry
- Konstanz
- Germany
| |
Collapse
|
24
|
Stempel E, Gaich T. Cyclohepta[b]indoles: A Privileged Structure Motif in Natural Products and Drug Design. Acc Chem Res 2016; 49:2390-2402. [PMID: 27709885 DOI: 10.1021/acs.accounts.6b00265] [Citation(s) in RCA: 222] [Impact Index Per Article: 27.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Seven-membered rings fused with an indole are termed cyclohepta[b]indoles. Compounds exhibiting this structure motif display a broad spectrum of biological activities, ranging from inhibition of adipocyte fatty-acid-binding protein (A-FABP), deacetylation of histones, inhibition of leukotriene production p53, antituberculosis activities, and anti-HIV activities. These biological profiles are found in natural products containing the cyclohepta[b]indole motif, as well as in pharmaceuticals that contain this structure motif. Therefore, the biology of molecules derived from the skeleton of cyclohepta[b]indoles, as well as cyclopenta- and cyclohexa[b]indoles, has attracted considerable interest from the pharmaceutical industry as potential therapeutics in recent years. This is reflected by more than two dozen patents that have been issued in the past decade, solely based on the cyclohepta[b]indole structure motif. The efficient preparation of highly functionalized and unsymmetrically substituted cyclohepta[b]indoles has therefore become of central interest for synthetic organic chemists. Historically, this structure motif most often has been prepared by means of a Fischer indole synthesis. Although very robust and useful, this reaction poses certain limitations. Especially unsymmetrically functionalized cyclohepta[b]indoles are not suitable for a Fischer indole type synthesis, since product mixtures are inevitable. Therefore, novel methodologies to overcome these synthetic obstacles have been developed in recent years. This Account introduces all natural products and pharmaceutical compounds exhibiting the cyclohepta[b]indole motif. The structural variability within cyclohepta[b]indole alkaloids in combination with the broad range of organisms where these alkaloids have been isolated from, strongly suggests that the cyclohepta[b]indole is somehow a "privileged" structure motif. The organisms producing these compounds range from evergreen trees (actinophyllic acid) to cyanobacteria (ambiguinines). The synthetic methodologies to construct these molecular scaffolds (natural and unnatural in origin) are in turn highlighted and discussed with regard to their potential to access highly functionalized and unsymmetrical cyclohepta[b]indoles, for which they specifically have been designed. The methods are classified with respect to reaction type and whether or not they are enantioselective. Finally, the syntheses of cyclohepta[b]indole natural products are presented, thereby in each case, focusing on the construction of this structure motif in the course of the respective total synthesis. As a conclusion, we end by contrasting the methodological progress in the field with the actual successful application of the newly developed methods to the synthesis of complex structures to pinpoint the urgent requirement for further synthetic development for efficient synthetic design of this "privileged" structure motif.
Collapse
Affiliation(s)
- Erik Stempel
- Institut
für Organische Chemie, Leibniz Universität Hannover, 30167 Hannover, Germany
| | - Tanja Gaich
- Lehrstuhl
für Organische Chemie, Universität Konstanz, 78457 Konstanz, Germany
| |
Collapse
|
25
|
Zhao G, Xie X, Sun H, Yuan Z, Zhong Z, Tang S, She X. Bioinspired Collective Syntheses of Iboga-Type Indole Alkaloids. Org Lett 2016; 18:2447-50. [PMID: 27160167 DOI: 10.1021/acs.orglett.6b00989] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We present the application of a bioinspired collective synthesis strategy in the total syntheses of seven iboga-type indole alkaloids: (±)-tabertinggine, (±)-ibogamine, (±)-ibogaine, (±)-ibogaine hydroxyindolenine, (±)-3-oxoibogaine hydroxyindolenine, (±)-iboluteine, and (±)-ervaoffines D. In particular, tabertinggine and its congeners serve as iboga precursors for the subsequent biomimetic transformations into other iboga-type alkaloids.
Collapse
Affiliation(s)
- Gaoyuan Zhao
- State Key Laboratory of Applied Organic Chemistry, Department of Chemistry, Lanzhou University , Lanzhou 730000, China
| | - Xingang Xie
- State Key Laboratory of Applied Organic Chemistry, Department of Chemistry, Lanzhou University , Lanzhou 730000, China
| | - Haiyu Sun
- State Key Laboratory of Applied Organic Chemistry, Department of Chemistry, Lanzhou University , Lanzhou 730000, China
| | - Ziyun Yuan
- State Key Laboratory of Applied Organic Chemistry, Department of Chemistry, Lanzhou University , Lanzhou 730000, China
| | - Zhuliang Zhong
- State Key Laboratory of Applied Organic Chemistry, Department of Chemistry, Lanzhou University , Lanzhou 730000, China
| | - Shouchu Tang
- State Key Laboratory of Applied Organic Chemistry, Department of Chemistry, Lanzhou University , Lanzhou 730000, China
| | - Xuegong She
- State Key Laboratory of Applied Organic Chemistry, Department of Chemistry, Lanzhou University , Lanzhou 730000, China.,Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Tianjin 300071, China
| |
Collapse
|
26
|
Liu ZW, Huang XJ, Xiao HL, Liu G, Zhang J, Shi L, Jiang RW, Zhang XQ, Ye WC. New iboga-type alkaloids from Ervatamia hainanensis. RSC Adv 2016. [DOI: 10.1039/c6ra00185h] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
The structures and absolute configurations of seven new iboga-type alkaloids 1–7 were determined by spectroscopic data, Mosher's method, single crystal X-ray diffraction and ECD analyses.
Collapse
Affiliation(s)
- Zhi-Wen Liu
- Institute of Traditional Chinese Medicine and Natural Products
- College of Pharmacy
- Jinan University
- Guangzhou 510632
- P. R. China
| | - Xiao-Jun Huang
- Institute of Traditional Chinese Medicine and Natural Products
- College of Pharmacy
- Jinan University
- Guangzhou 510632
- P. R. China
| | - Han-Lin Xiao
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research
- Jinan University
- Guangzhou 510632
- P. R. China
| | - Guo Liu
- Institute of Traditional Chinese Medicine and Natural Products
- College of Pharmacy
- Jinan University
- Guangzhou 510632
- P. R. China
| | - Jian Zhang
- Institute of Traditional Chinese Medicine and Natural Products
- College of Pharmacy
- Jinan University
- Guangzhou 510632
- P. R. China
| | - Lei Shi
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research
- Jinan University
- Guangzhou 510632
- P. R. China
| | - Ren-Wang Jiang
- Institute of Traditional Chinese Medicine and Natural Products
- College of Pharmacy
- Jinan University
- Guangzhou 510632
- P. R. China
| | - Xiao-Qi Zhang
- Institute of Traditional Chinese Medicine and Natural Products
- College of Pharmacy
- Jinan University
- Guangzhou 510632
- P. R. China
| | - Wen-Cai Ye
- Institute of Traditional Chinese Medicine and Natural Products
- College of Pharmacy
- Jinan University
- Guangzhou 510632
- P. R. China
| |
Collapse
|
27
|
Gao Y, Xu Q, Shi M. Enantioselective Synthesis of Polycyclic Indole Derivatives Based on aza-Morita–Baylis–Hillman Reaction. ACS Catal 2015. [DOI: 10.1021/acscatal.5b01579] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yuning Gao
- Laboratory for Advanced Materials & Institute of Fine Chemicals, School of Chemistry & Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China
| | - Qin Xu
- Laboratory for Advanced Materials & Institute of Fine Chemicals, School of Chemistry & Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China
| | - Min Shi
- Laboratory for Advanced Materials & Institute of Fine Chemicals, School of Chemistry & Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China
- Shanghai
Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, P. R. China
| |
Collapse
|
28
|
Zhang DB, Yu DG, Sun M, Zhu XX, Yao XJ, Zhou SY, Chen JJ, Gao K. Ervatamines A-I, Anti-inflammatory Monoterpenoid Indole Alkaloids with Diverse Skeletons from Ervatamia hainanensis. JOURNAL OF NATURAL PRODUCTS 2015; 78:1253-1261. [PMID: 26024020 DOI: 10.1021/acs.jnatprod.5b00051] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Nine new monoterpenoid indole alkaloids, ervatamines A-I (1-9), and five known ones (10-14), were isolated from Ervatamia hainanensis. The new structures were elucidated by extensive spectroscopic analysis and comparison to known compounds. Their absolute configurations were determined by various methods including computational methods, X-ray diffraction analysis, and electronic circular dichroism spectroscopy, as well as chemical transformations. Ervatamine A (1) is a ring-C-contracted ibogan-type monoterpenoid indole alkaloid with an unusual 6/5/6/6/6 pentacyclic rearranged ring system. Ervatamines B-E (2-5) display a nitrogen-containing 9/6 ring system, which is rarely observed in nature. The epimeric ervatamines B (2) and C (3) possess a 22-nor-monoterpenoid indole alkaloid carbon skeleton, which was only found in deformylstemmadenine. Compounds 10 and 14 exhibited significant anti-inflammatory activities, with IC50 values of 25.5 and 41.5 μM, respectively, while the IC50 value of indomethacin as a positive control was found to be 42.6 μM. Additionally, compound 9 showed mild activity against 786-O and HL-60 cell lines.
Collapse
Affiliation(s)
- Dong-Bo Zhang
- †State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, People's Republic of China
| | - Dao-Geng Yu
- ‡Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Science, Danzhou 571737, People's Republic of China
| | - Meng Sun
- †State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, People's Republic of China
| | - Xu-Xin Zhu
- †State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, People's Republic of China
| | - Xiao-Jun Yao
- †State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, People's Republic of China
| | - Shuang-Yan Zhou
- †State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, People's Republic of China
| | - Jian-Jun Chen
- †State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, People's Republic of China
| | - Kun Gao
- †State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, People's Republic of China
| |
Collapse
|
29
|
Paek SM. Development of advanced macrosphelides: potent anticancer agents. Molecules 2015; 20:4430-49. [PMID: 25764486 PMCID: PMC6272164 DOI: 10.3390/molecules20034430] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2015] [Revised: 03/01/2015] [Accepted: 03/06/2015] [Indexed: 01/06/2023] Open
Abstract
Synthetic approaches to macrosphelide derivatives, based on medicinal chemistry, are summarized. This review contains conventional medicinal chemistry approaches, combinatorial chemistry, fluorous tagging techniques and affinity chromatography preparation. In addition, advances in their apoptosis-inducing activities are also included.
Collapse
Affiliation(s)
- Seung-Mann Paek
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Gyeongsang National University, Jinju daero, Jinju, Gyeongnam 660-701, Korea.
| |
Collapse
|
30
|
Sirvent JA, Foubelo F, Yus M. Stereoselective synthesis of indoline, tetrahydroquinoline, and tetrahydrobenzazepine derivatives from o-bromophenyl N-tert-butylsulfinyl aldimines. J Org Chem 2014; 79:1356-67. [PMID: 24447196 DOI: 10.1021/jo402759v] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The diastereoselective addition of an allylic indium intermediate to chiral o-bromophenyl sulfinyl imine 4 proceeded with good levels of diastereoselectivity. The resulting homoallylic amine derivatives were transformed into lactams 7 and 12, which upon copper-mediated intramolecular N-arylation led to the formation of benzo-fused 1-azabicyclo[j.k.0]alkanes 8 and 13. Benzo-fused 2-allyl-substituted heterocycles 14 could also be prepared by means of a palladium-catalyzed N-arylation of the corresponding free amines. The synthesis of the alkaloid (−)-angustureine was easily accomplished from (S)-2-allyltetrahydroquinoline (14b).
Collapse
|
31
|
Tang BQ, Wang WJ, Huang XJ, Li GQ, Wang L, Jiang RW, Yang TT, Shi L, Zhang XQ, Ye WC. Iboga-Type Alkaloids from Ervatamia officinalis. JOURNAL OF NATURAL PRODUCTS 2014; 77:1839-1846. [PMID: 25093992 DOI: 10.1021/np500240b] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Seven new iboga-type alkaloids, ervaoffines A-D (1-4), (7S)-3-oxoibogaine hydroxyindolenine (5), ibogaine-5,6-dione (6), and 19-epi-5-oxovoacristine (7), and 10 known alkaloids were isolated from Ervatamia officinalis. The absolute configurations of 1-7 were determined through X-ray diffraction and electronic circular dichroism (ECD) analyses. Ervaoffines A and B represent the first iboga-type pseudoindoxyl alkaloids in which the C-2 spiro carbon configuration is opposite to that of other members of this class, such as iboluteine (8). The relationship between the absolute configuration of the spiro carbons and the Cotton effect in the ECD spectrum is established for the first time for iboga-type pseudoindoxyl and oxindole alkaloids. Additionally, a plausible biogenetic pathway for these alkaloids is proposed.
Collapse
Affiliation(s)
- Ben-Qin Tang
- Department of Natural Medicinal Chemistry, China Pharmaceutical University , Nanjing 210009, People's Republic of China
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University , Guangzhou 510632, People's Republic of China
| | - Wen-Jing Wang
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University , Guangzhou 510632, People's Republic of China
| | - Xiao-Jun Huang
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University , Guangzhou 510632, People's Republic of China
| | - Guo-Qiang Li
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University , Guangzhou 510632, People's Republic of China
| | - Lei Wang
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University , Guangzhou 510632, People's Republic of China
| | - Ren-Wang Jiang
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University , Guangzhou 510632, People's Republic of China
| | - Ting-Ting Yang
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University , Guangzhou 510632, People's Republic of China
| | - Lei Shi
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University , Guangzhou 510632, People's Republic of China
| | - Xiao-Qi Zhang
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University , Guangzhou 510632, People's Republic of China
| | - Wen-Cai Ye
- Department of Natural Medicinal Chemistry, China Pharmaceutical University , Nanjing 210009, People's Republic of China
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University , Guangzhou 510632, People's Republic of China
| |
Collapse
|
32
|
Liu J, Ma S. Aerobic oxidation of indole carbinols using Fe(NO3)3·9H2O/TEMPO/NaCl as catalysts. Org Biomol Chem 2013; 11:4186-93. [PMID: 23677005 DOI: 10.1039/c3ob40226f] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A practical aerobic oxidation of indole carbinols using Fe(NO3)3·9H2O/TEMPO/NaCl in DCE at room temperature and atmospheric pressure of oxygen affording aldehydes or ketones in good to excellent yields was developed. Furthermore, when using the industrially favored solvent toluene instead of DCE and air instead of pure oxygen, this protocol also works smoothly, demonstrating its high potential for possible industrial application.
Collapse
Affiliation(s)
- Jinxian Liu
- Key Laboratory of Green Chemistry and Chemical Process, Department of Chemistry, East China Normal University, 3663 North Zhongshan Lu, Shanghai 200062, PR China
| | | |
Collapse
|
33
|
Liu L, Cao JX, Yao YC, Xu SP. Progress of pharmacological studies on alkaloids from Apocynaceae. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2012; 15:166-184. [PMID: 23249181 DOI: 10.1080/10286020.2012.747521] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Alkaloid was a kind of biological active ingredient. There were various types of alkaloids in Apocynaceae. This paper reviewed the progress on alkaloids from Apocynaceae, which contained origin, structure, and pharmacological activity.
Collapse
Affiliation(s)
- Lu Liu
- Faculty of Chemical Engineering, Kunming University of Science and Technology, Kunming 650504, China
| | | | | | | |
Collapse
|
34
|
Cai XH, Li Y, Liu YP, Li XN, Bao MF, Luo XD. Alkaloids from Melodinus yunnanensis. PHYTOCHEMISTRY 2012; 83:116-24. [PMID: 22818523 DOI: 10.1016/j.phytochem.2012.06.013] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2011] [Revised: 06/06/2012] [Accepted: 06/18/2012] [Indexed: 05/22/2023]
Abstract
Ten monoterpenoid indole alkaloids, namely meloyine, 19S-methoxytubotaiwine N₄-oxide, 16,19-epoxy-Δ¹⁴-vincanol, 14β-hydroxymeloyunine, meloyunine, Δ¹⁴-vincamenine N₄-oxide, 16β,21β-epoxy-vincadine, 14β,15β-20S-quebrachamine, 3-oxo-voaphylline, 2α,7α-dihydroxy-dihydrovoaphylline, and 32 known alkaloids were isolated from leaves and twigs of Melodinus yunnanensis. Their structures were elucidated based on 1- and 2-D NMR, FTIR, UV, and MS spectroscopic data. Meloyine I showed weak cytotoxic activity against four human cancer cell lines: MCF-7 breast cancer, SMMC-7721 hepatocellular carcinoma, HL-60 myeloid leukemia, and A-549 lung cancer.
Collapse
Affiliation(s)
- Xiang-Hai Cai
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650204, China.
| | | | | | | | | | | |
Collapse
|
35
|
Guasch L, Sala E, Ojeda MJ, Valls C, Bladé C, Mulero M, Blay M, Ardévol A, Garcia-Vallvé S, Pujadas G. Identification of novel human dipeptidyl peptidase-IV inhibitors of natural origin (Part II): in silico prediction in antidiabetic extracts. PLoS One 2012; 7:e44972. [PMID: 23028712 PMCID: PMC3448616 DOI: 10.1371/journal.pone.0044972] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2011] [Accepted: 08/16/2012] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND Natural extracts play an important role in traditional medicines for the treatment of diabetes mellitus and are also an essential resource for new drug discovery. Dipeptidyl peptidase IV (DPP-IV) inhibitors are potential candidates for the treatment of type 2 diabetes mellitus, and the effectiveness of certain antidiabetic extracts of natural origin could be, at least partially, explained by the inhibition of DPP-IV. METHODOLOGY/PRINCIPAL FINDINGS Using an initial set of 29,779 natural products that are annotated with their natural source and an experimentally validated virtual screening procedure previously developed in our lab (Guasch et al.; 2012) [1], we have predicted 12 potential DPP-IV inhibitors from 12 different plant extracts that are known to have antidiabetic activity. Seven of these molecules are identical or similar to molecules with described antidiabetic activity (although their role as DPP-IV inhibitors has not been suggested as an explanation for their bioactivity). Therefore, it is plausible that these 12 molecules could be responsible, at least in part, for the antidiabetic activity of these extracts through their inhibitory effect on DPP-IV. In addition, we also identified as potential DPP-IV inhibitors 6 molecules from 6 different plants with no described antidiabetic activity but that share the same genus as plants with known antidiabetic properties. Moreover, none of the 18 molecules that we predicted as DPP-IV inhibitors exhibits chemical similarity with a group of 2,342 known DPP-IV inhibitors. CONCLUSIONS/SIGNIFICANCE Our study identified 18 potential DPP-IV inhibitors in 18 different plant extracts (12 of these plants have known antidiabetic properties, whereas, for the remaining 6, antidiabetic activity has been reported for other plant species from the same genus). Moreover, none of the 18 molecules exhibits chemical similarity with a large group of known DPP-IV inhibitors.
Collapse
Affiliation(s)
- Laura Guasch
- Grup de Recerca en Nutrigenòmica, Departament de Bioquímica i Biotecnologia, Universitat Rovira i Virgili, Tarragona, Catalonia, Spain
| | - Esther Sala
- Grup de Recerca en Nutrigenòmica, Departament de Bioquímica i Biotecnologia, Universitat Rovira i Virgili, Tarragona, Catalonia, Spain
| | - María José Ojeda
- Grup de Recerca en Nutrigenòmica, Departament de Bioquímica i Biotecnologia, Universitat Rovira i Virgili, Tarragona, Catalonia, Spain
| | - Cristina Valls
- Grup de Recerca en Nutrigenòmica, Departament de Bioquímica i Biotecnologia, Universitat Rovira i Virgili, Tarragona, Catalonia, Spain
| | - Cinta Bladé
- Grup de Recerca en Nutrigenòmica, Departament de Bioquímica i Biotecnologia, Universitat Rovira i Virgili, Tarragona, Catalonia, Spain
| | - Miquel Mulero
- Grup de Recerca en Nutrigenòmica, Departament de Bioquímica i Biotecnologia, Universitat Rovira i Virgili, Tarragona, Catalonia, Spain
| | - Mayte Blay
- Grup de Recerca en Nutrigenòmica, Departament de Bioquímica i Biotecnologia, Universitat Rovira i Virgili, Tarragona, Catalonia, Spain
| | - Anna Ardévol
- Grup de Recerca en Nutrigenòmica, Departament de Bioquímica i Biotecnologia, Universitat Rovira i Virgili, Tarragona, Catalonia, Spain
| | - Santiago Garcia-Vallvé
- Grup de Recerca en Nutrigenòmica, Departament de Bioquímica i Biotecnologia, Universitat Rovira i Virgili, Tarragona, Catalonia, Spain
- Centre Tecnològic de Nutrició i Salut (CTNS), TECNIO, CEICS, Reus, Catalonia, Spain
| | - Gerard Pujadas
- Grup de Recerca en Nutrigenòmica, Departament de Bioquímica i Biotecnologia, Universitat Rovira i Virgili, Tarragona, Catalonia, Spain
- Centre Tecnològic de Nutrició i Salut (CTNS), TECNIO, CEICS, Reus, Catalonia, Spain
| |
Collapse
|
36
|
Discovery of structurally diverse and bioactive compounds from plant resources in China. Acta Pharmacol Sin 2012; 33:1147-58. [PMID: 22941284 DOI: 10.1038/aps.2012.105] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
This review describes the major discoveries of structurally diverse and/or biologically significant compounds from plant resources in China, mainly from the traditional Chinese medicines (TCMs) since the establishment of our research group in 1999. In the past decade, a large array of biologically significant and novel structures has been identified from plant resources (or TCM) in our laboratory. The structural modification of several biologically important compounds led to more than 400 derivatives, some of which exhibited significantly improved activities and provided opportunities to elucidate the structure-activity relationship of the related compound class. These findings are important for drug discovery and help us understand the biological basis for the traditional applications of these plants in TCM.
Collapse
|
37
|
Guo LL, He HP, Di YT, Li SF, Cheng YY, Yang W, Li Y, Yu JP, Zhang Y, Hao XJ. Indole alkaloids from Ervatamia chinensis. PHYTOCHEMISTRY 2012; 74:140-145. [PMID: 22119076 DOI: 10.1016/j.phytochem.2011.11.002] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2011] [Revised: 09/05/2011] [Accepted: 11/03/2011] [Indexed: 05/31/2023]
Abstract
Four vobasinyl-ibogan type bisindole alkaloids, ervachinines A-D (1-4), along with 12 known terpenoid indole alkaloids, were isolated from the whole plant of Ervatamia chinensis. Their structures were elucidated by analysis of spectroscopic data, including 1D and 2D NMR, and the absolute configurations of 1-4 were determined by CD exciton chirality method. All of the compounds were evaluated for in vitro cytotoxicity against five human cancer cell lines: HL-60, SMMC-7721, A-549, MCF-7 and SW480. Bisindole alkaloids 1-6 exhibited inhibitory effects, with IC(50) values comparable to those of cisplatin.
Collapse
Affiliation(s)
- Ling-Li Guo
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650204, People's Republic of China
| | | | | | | | | | | | | | | | | | | |
Collapse
|
38
|
|
39
|
Zhan ZJ, Yu Q, Wang ZL, Shan WG. Indole alkaloids from Ervatamia hainanensis with potent acetylcholinesterase inhibition activities. Bioorg Med Chem Lett 2010; 20:6185-7. [PMID: 20850311 DOI: 10.1016/j.bmcl.2010.08.123] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2010] [Revised: 08/03/2010] [Accepted: 08/25/2010] [Indexed: 01/08/2023]
Abstract
Through bioassay-guided fractionation and chromatography technique, eight indole alkaloids were furnished from the stems of Ervatamia hainanensis. All isolates were evaluated for acetylcholinesterase (AChE) inhibition activities, in which compounds 1 and 3 exhibited the same level of activities as galantamine, a marketed cholinesterase inhibitor for the treatment of Alzheimer's disease. Discussion about the relationships between structure and activity of these alkaloids was also presented.
Collapse
Affiliation(s)
- Zha-Jun Zhan
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, PR China
| | | | | | | |
Collapse
|
40
|
Lima MPD, Hilst LF, Mattana FVR, Santos CADM, Weffort-Santos AM. Alkaloid-rich fraction of Himatanthus lancifolius contains anti-tumor agents against leukemic cells. BRAZ J PHARM SCI 2010. [DOI: 10.1590/s1984-82502010000200014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The effects of the alkaloid-rich fraction of Himatanthus lancifolius (Müll. Arg) Woodson on normal marrow cells and leukemic cell lines were investigated. After 48 h exposure, the proliferation assay showed significant cell growth inhibition for Daudi (0.1-10 µg/mL), K-562 (1-10 µg/mL), and REH cells (10-100 µg/mL), yet was inert for normal marrow cells. A similar inhibition profile was observed in clonogenic assays. This alkaloid-rich fraction, in which uleine is the main compound, showed no signs of toxicity to any cells up to 10 µg/mL. Cell feature analyses after induction of differentiation showed maintenance of the initial phenotype. Flow cytometric expression of Annexin-V and 7-AAD in K-562 and Daudi cells has indicated that the cells were not undergoing apoptosis or necrosis, suggesting cytostatic activity for tumor cells
Collapse
|
41
|
The first enantiospecific total synthesis of the 3-oxygenated sarpagine indole alkaloids affinine and 16-epiaffinine, as well as vobasinediol and 16-epivobasinediol. Tetrahedron Lett 2010. [DOI: 10.1016/j.tetlet.2009.12.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
42
|
Zhan ZJ, Zhang LW, Shan WG. Ervahainanmine, a new indole alkaloid from the stems of Ervatamia hainanensis. JOURNAL OF CHEMICAL RESEARCH 2009. [DOI: 10.3184/030823409x465240] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A new sarpagine-type alkaloid with N-oxide group, called ervahainanmine, and three known ones including coronaridine, 19(S)-heyneanineguan, and coronaridine hydroxyindolenineguan were isolated from the stems of Evratamia hainanensis. The structure was established by spectroscopic methods, especially 2D NMR techniques.
Collapse
Affiliation(s)
- Zha-Jun Zhan
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, 310014, P.R. China
| | - Li-Wen Zhang
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, 310014, P.R. China
| | - Wei-Guang Shan
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, 310014, P.R. China
| |
Collapse
|
43
|
Lim KH, Kam TS. Conoliferine and isoconoliferine, structurally novel alkaloid-lignan conjugates from Tabernaemontana corymbosa. Tetrahedron Lett 2009. [DOI: 10.1016/j.tetlet.2009.02.075] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
44
|
Lim KH, Etoh T, Hayashi M, Komiyama K, Kam TS. Conolutinine, a hexacyclic indole alkaloid with a novel ring system incorporating a diazaspiro center and fused oxadiazepine–tetrahydrofuran rings. Tetrahedron Lett 2009. [DOI: 10.1016/j.tetlet.2008.10.066] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
45
|
Lim KH, Thomas NF, Abdullah Z, Kam TS. Seco-tabersonine alkaloids from Tabernaemontana corymbosa. PHYTOCHEMISTRY 2009; 70:424-429. [PMID: 19217125 DOI: 10.1016/j.phytochem.2009.01.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2008] [Accepted: 01/06/2009] [Indexed: 05/27/2023]
Abstract
Two seco-tabersonine alkaloids, jerantiphyllines A and B, in addition to a tabersonine hydroxyindolenine, jerantinine H, and a recently reported vincamine alkaloid 7, were isolated from the leaf extract of the Malayan Tabernaemontana corymbosa and the structures were established using NMR and MS analysis. Biomimetic conversion of jerantinines A and E to their respective vincamine and 16-epivincamine derivatives were also carried out.
Collapse
Affiliation(s)
- Kuan-Hon Lim
- Department of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | | | | | | |
Collapse
|
46
|
Ishikura M, Yamada K. Simple indole alkaloids and those with a nonrearranged monoterpenoid unit. Nat Prod Rep 2009; 26:803-52. [DOI: 10.1039/b820693g] [Citation(s) in RCA: 94] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
47
|
Lim KH, Hiraku O, Komiyama K, Kam TS. Jerantinines A-G, cytotoxic Aspidosperma alkaloids from Tabernaemontana corymbosa. JOURNAL OF NATURAL PRODUCTS 2008; 71:1591-4. [PMID: 18778099 DOI: 10.1021/np800435c] [Citation(s) in RCA: 61] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Seven new indole alkaloids of the Aspidosperma type, jerantinines A-G (1-7), were isolated from a leaf extract of the Malayan Tabernaemontana corymbosa. The structures were established using NMR and MS analysis. Five of the alkaloids isolated and two derivatives (1-5, 8, 9) displayed pronounced in vitro cytotoxicity against human KB cells (IC50 < 1 microg/mL).
Collapse
Affiliation(s)
- Kuan-Hon Lim
- Department of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | | | | | | |
Collapse
|