1
|
Pavunkumar V, Harikrishnan K, Mohanakrishnan AK. Synthesis of Cytotoxic Quino[4,3- b]carbazole Frameworks through an Intramolecular Diels-Alder Reaction. J Org Chem 2024; 89:191-215. [PMID: 38133929 DOI: 10.1021/acs.joc.3c01909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2023]
Abstract
An intramolecular Diels-Alder reaction of positionally isomeric indole-2/3-phenylvinyl-N-alkynylated (N-phenylsulfonyl)amines has been successfully exploited for the synthesis of quino[4,3-b]carbazole and its analogues. This reaction proceeds through a [4 + 2] cycloaddition followed by elimination and deprotection of phenylsulfonyl units to afford the quinocarbazoles in moderate to good yields. The reaction features a broad substrate scope and remarkable functional group forbearance. A preliminary in vitro cytotoxicity evaluation of representative quino[4,3-b]carbazoles was performed against NCI-H460 human cancer cell culture. Among the quino[4,3-b]carbazoles evaluated, five of the fluorine-containing quinocarbazoles displayed nano molar range (0.8-2.0 nm) GI50 values. The UV-vis and fluorescence spectral studies of representative quinocarbazoles were also performed. Like ellipticine, four of the quinocarbazoles displayed dual emissions confirming the existence of p-quinonoid like tautomeric forms in a polar protic solvent.
Collapse
Affiliation(s)
- Vinayagam Pavunkumar
- Department of Organic Chemistry, School of Chemical Science, University of Madras, Guindy Campus, Chennai 600 025, Tamil Nadu, India
| | - Kesavan Harikrishnan
- Department of Organic Chemistry, School of Chemical Science, University of Madras, Guindy Campus, Chennai 600 025, Tamil Nadu, India
| | - Arasambattu K Mohanakrishnan
- Department of Organic Chemistry, School of Chemical Science, University of Madras, Guindy Campus, Chennai 600 025, Tamil Nadu, India
| |
Collapse
|
2
|
Lee S, Chao MW, Wu YW, Hsu CM, Lin TE, Hsu KC, Pan SL, Lee HY. Synthesis and evaluation of potent (iso)ellipticine-based inhibitors of MYLK4 accessed via expeditious synthesis from isoquinolin-5-ol. RSC Adv 2023; 13:31595-31601. [PMID: 37908644 PMCID: PMC10613853 DOI: 10.1039/d3ra06600b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Accepted: 10/23/2023] [Indexed: 11/02/2023] Open
Abstract
The K2S2O8-mediated generation of p-iminoquinone contributed to the regioselective substitution of isoquinolin-5,8-dione. This hydroxyl group-guided substitution was also applied to selected heterocycles and addressed the regioselectivity issue of quinones. This study has provided an expeditious pathway from isoquinolin-5-ol (5) to ellipticine (1) and isoellipticine (2), which benefits the comprehensive comparison of their activity. Compounds 1 and 2 displayed marked MYLK4 inhibitory activity with IC50 values of 7.1 and 6.1 nM, respectively. In the cellular activity of AML cells (MV-4-11 and MOLM-13), compound 1 showed better AML activity than compound 2.
Collapse
Affiliation(s)
- Szu Lee
- School of Pharmacy, College of Pharmacy, Taipei Medical University Taiwan +886-2-7361661
| | - Min-Wu Chao
- School of Medicine, College of Medicine, National Sun Yat-sen University Kaohsiung Taiwan
- Institute of Biopharmaceutical Sciences, College of Medicine, National Sun Yat-sen University Kaohsiung Taiwan
- The Doctoral Program of Clinical and Experimental Medicine, College of Medicine, National Sun Yat-sen University Kaohsiung Taiwan
| | - Yi-Wen Wu
- Graduate Institute of Cancer Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University Taipei Taiwan
| | - Chia-Min Hsu
- Graduate Institute of Cancer Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University Taipei Taiwan
| | - Tony Eight Lin
- Graduate Institute of Cancer Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University Taipei Taiwan
- PhD Program for Cancer Molecular Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University Taipei Taiwan
| | - Kai-Cheng Hsu
- Graduate Institute of Cancer Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University Taipei Taiwan
- PhD Program for Cancer Molecular Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University Taipei Taiwan
- TMU Research Center of Cancer Translational Medicine, Taipei Medical University Taipei Taiwan
- TMU Research Center for Drug Discovery, Taipei Medical University Taipei Taiwan
- PhD Program in Drug Discovery and Development Industry, College of Pharmacy, Taipei Medical University Taipei Taiwan
| | - Shiow-Lin Pan
- Graduate Institute of Cancer Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University Taipei Taiwan
- PhD Program for Cancer Molecular Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University Taipei Taiwan
- TMU Research Center of Cancer Translational Medicine, Taipei Medical University Taipei Taiwan
- TMU Research Center for Drug Discovery, Taipei Medical University Taipei Taiwan
- PhD Program in Drug Discovery and Development Industry, College of Pharmacy, Taipei Medical University Taipei Taiwan
| | - Hsueh-Yun Lee
- School of Pharmacy, College of Pharmacy, Taipei Medical University Taiwan +886-2-7361661
- PhD Program in Drug Discovery and Development Industry, College of Pharmacy, Taipei Medical University Taipei Taiwan
- Master Program in Clinical Genomics and Proteomics, College of Pharmacy, Taipei Medical University Taipei Taiwan
| |
Collapse
|
3
|
Han Y, Jiang W, Zhang J, Peng J, Chen C. Visible-Light-Promoted Palladium-Catalyzed C—H Amination for the Synthesis of Carbazolequinones. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202104037] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
4
|
|
5
|
W. Gribble G, A. Obaza-Nutaitis J. Synthesis and Cytotoxicity of Novel Bis-Ellipticines and Bis-Isoellipticines. HETEROCYCLES 2019. [DOI: 10.3987/com-18-s(f)6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
6
|
Almutairi MS, Zakaria AS, Ignasius PP, Al-Wabli RI, Joe IH, Attia MI. Synthesis, spectroscopic investigations, DFT studies, molecular docking and antimicrobial potential of certain new indole-isatin molecular hybrids: Experimental and theoretical approaches. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2017.10.025] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
7
|
Muthu Ramalingam B, Dhatchana Moorthy N, Chowdhury SR, Mageshwaran T, Vellaichamy E, Saha S, Ganesan K, Rajesh BN, Iqbal S, Majumder HK, Gunasekaran K, Siva R, Mohanakrishnan AK. Synthesis and Biological Evaluation of Calothrixins B and their Deoxygenated Analogues. J Med Chem 2018; 61:1285-1315. [PMID: 29313676 DOI: 10.1021/acs.jmedchem.7b01797] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
A series of calothrixin B (2) analogues bearing substituents at the 'E' ring and their corresponding deoxygenated quinocarbazoles lacking quinone unit were synthesized. The cytotoxicities of calothrixins 1, 2, and 15b-p and quinocarbazole analogues were investigated against nine cancer cell lines. The quinocarbazoles 21a and 25a inhibited the catalytic activity of human topoisomerase II. The plasmid DNA cleavage abilities of calothrixins 1, 2, and 15b-p identified compound 15h causing DNA cleavage comparable to that of calothrixin A (1). Calothrixin A (1), 3-fluorocalothrixin 15h and 4-fluoroquinocarbazole 21b induced extensive DNA damage followed by apoptotic cell death. Spectral and plasmid unwinding studies demonstrated an intercalative mode of binding for quinocarbazoles. We identified two promising drug candidates, the 3-fluorocalothrixin B 15h with low toxicity in animal model and its deoxygenated derivative 4-fluoroquinocarbazole 21b as having potent cytotoxicity against NCI-H460 cell line with a GI50 of 1 nM.
Collapse
Affiliation(s)
- Bose Muthu Ramalingam
- Department of Organic Chemistry, University of Madras , Guindy Campus, Chennai 600 025, India
| | - Nachiappan Dhatchana Moorthy
- Department of Biochemistry, University of Madras , Guindy Campus, Chennai 600 025, India.,Research and Development Centre, Orchid Pharma Ltd , Sholinganallur, Chennai 600 119, India
| | - Somenath Roy Chowdhury
- Division of Infectious Diseases & Immunology, Indian Institute of Chemical Biology , 4 Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, India
| | | | - Elangovan Vellaichamy
- Department of Biochemistry, University of Madras , Guindy Campus, Chennai 600 025, India
| | - Sourav Saha
- Division of Infectious Diseases & Immunology, Indian Institute of Chemical Biology , 4 Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, India
| | - Karthikeyan Ganesan
- Research and Development Centre, Orchid Pharma Ltd , Sholinganallur, Chennai 600 119, India
| | - B Navin Rajesh
- Research and Development Centre, Orchid Pharma Ltd , Sholinganallur, Chennai 600 119, India
| | - Saleem Iqbal
- CAS in Crystallography & Biophysics, University of Madras , Chennai 600 025, India
| | - Hemanta K Majumder
- Division of Infectious Diseases & Immunology, Indian Institute of Chemical Biology , 4 Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, India
| | | | - Ramamoorthy Siva
- School of Bio Sciences and Technology, VIT University , Vellore 632 014, India
| | | |
Collapse
|
8
|
Structure-activity relationship study and optimisation of 2-aminopyrrole-1-benzyl-4,5-diphenyl-1 H -pyrrole-3-carbonitrile as a broad spectrum metallo-β-lactamase inhibitor. Eur J Med Chem 2017; 137:351-364. [DOI: 10.1016/j.ejmech.2017.05.061] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Revised: 04/16/2017] [Accepted: 05/31/2017] [Indexed: 11/18/2022]
|
9
|
Lee S, Kim KH, Cheon CH. Total Syntheses of Arcyriaflavin A and Calothrixin B Using 2,2′-Bisindole-3-acetic Acid Derivative as a Common Intermediate. Org Lett 2017; 19:2785-2788. [DOI: 10.1021/acs.orglett.7b00687] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sungjong Lee
- Department of Chemistry, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Kyung-Hee Kim
- Department of Chemistry, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Cheol-Hong Cheon
- Department of Chemistry, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| |
Collapse
|
10
|
Norman AR, Norcott P, McErlean CS. Overview of the synthesis of carbazoloquinone natural products. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.07.092] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
11
|
Guo J, Kiran INC, Reddy RS, Gao J, Tang M, Liu Y, He Y. Synthesis of Carbazolequinones by Formal [3 + 2] Cycloaddition of Arynes and 2-Aminoquinones. Org Lett 2016; 18:2499-502. [DOI: 10.1021/acs.orglett.6b01090] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jian Guo
- School of Pharmaceutical
Sciences and Innovative Drug Research Centre, Chongqing University, 55 Daxuecheng South Road, Shapingba, Chongqing 401331, P. R. China
| | - I. N. Chaithanya Kiran
- School of Pharmaceutical
Sciences and Innovative Drug Research Centre, Chongqing University, 55 Daxuecheng South Road, Shapingba, Chongqing 401331, P. R. China
| | - R. Santhosh Reddy
- School of Pharmaceutical
Sciences and Innovative Drug Research Centre, Chongqing University, 55 Daxuecheng South Road, Shapingba, Chongqing 401331, P. R. China
| | - Jiangsheng Gao
- School of Pharmaceutical
Sciences and Innovative Drug Research Centre, Chongqing University, 55 Daxuecheng South Road, Shapingba, Chongqing 401331, P. R. China
| | - Meiqiong Tang
- School of Pharmaceutical
Sciences and Innovative Drug Research Centre, Chongqing University, 55 Daxuecheng South Road, Shapingba, Chongqing 401331, P. R. China
| | - Yuyin Liu
- School of Pharmaceutical
Sciences and Innovative Drug Research Centre, Chongqing University, 55 Daxuecheng South Road, Shapingba, Chongqing 401331, P. R. China
| | - Yun He
- School of Pharmaceutical
Sciences and Innovative Drug Research Centre, Chongqing University, 55 Daxuecheng South Road, Shapingba, Chongqing 401331, P. R. China
| |
Collapse
|
12
|
Cyanobacterial Metabolite Calothrixins: Recent Advances in Synthesis and Biological Evaluation. Mar Drugs 2016; 14:17. [PMID: 26771620 PMCID: PMC4728514 DOI: 10.3390/md14010017] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Revised: 12/22/2015] [Accepted: 01/04/2016] [Indexed: 12/30/2022] Open
Abstract
The marine environment is host to unparalleled biological and chemical diversity, making it an attractive resource for the discovery of new therapeutics for a plethora of diseases. Compounds that are extracted from cyanobacteria are of special interest due to their unique structural scaffolds and capacity to produce potent pharmaceutical and biotechnological traits. Calothrixins A and B are two cyanobacterial metabolites with a structural assembly of quinoline, quinone, and indole pharmacophores. This review surveys recent advances in the synthesis and evaluation of the biological activities of calothrixins. Due to the low isolation yields from the marine source and the promise this scaffold holds for anticancer and antimicrobial drugs, organic and medicinal chemists around the world have embarked on developing efficient synthetic routes to produce calothrixins. Since the first review appeared in 2009, 11 novel syntheses of calothrixins have been published in the efforts to develop methods that contain fewer steps and higher-yielding reactions. Calothrixins have shown their potential as topoisomerase I poisons for their cytotoxicity in cancer. They have also been observed to target various aspects of RNA synthesis in bacteria. Further investigation into the exact mechanism for their bioactivity is still required for many of its analogs.
Collapse
|
13
|
Ramkumar N, Nagarajan R. Formal total synthesis of calothrixin B and its N-benzyl analogues. RSC Adv 2015. [DOI: 10.1039/c5ra18120h] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
A formal total synthesis of calothrixin B and its N-benzyl analogues has been reported from (2-chlorophenyl)boronic acid, 8-bromophenanthridine-dione and benzylamines.
Collapse
|
14
|
Ramkumar N, Nagarajan R. Total synthesis of calothrixin B via sequential Sonogashira coupling/copper-catalyzed oxidative cyclization. Org Biomol Chem 2015; 13:11046-51. [DOI: 10.1039/c5ob01766a] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A total synthesis of the antimalarial indolo[3,2-j]phenanthridine alkaloid calothrixin B is reported.
Collapse
|