1
|
Basak SJ, Dash J. Total Synthesis of Racemic Benzomalvin E, a Quinazolinone Isolated from Pencilium sp. FN070315 and Exploration to the Direct Synthesis of ( E)-Benzomalvin B. J Org Chem 2024; 89:3612-3617. [PMID: 38349752 DOI: 10.1021/acs.joc.3c02687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2024]
Abstract
We present the first total synthesis of (±) benzomalvin E, featuring a quinazolino moiety with a 6-6-6-7-fused tetracyclic skeleton containing three nitrogen atoms. The key transformation involves Cu-catalyzed intramolecular C-N arylation of quinazolinone, leading to a sclerotigenin analogue that undergoes nucleophilic addition with benzaldehyde, enabling the synthesis of (±) benzomalvin E in six linear steps with a 33% overall yield. The (±) benzomalvin E's structure was validated by 2-D NMR and single crystal XRD analysis and was further transformed into (E)-benzomalvin B.
Collapse
Affiliation(s)
- Soumya Jyoti Basak
- School of Chemical Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata-700032, India
| | - Jyotirmayee Dash
- School of Chemical Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata-700032, India
| |
Collapse
|
2
|
Fan H, Xu Y, Yang F, Xu S, Zhao X, Zhang X. PPh
3
‐Mediated Wittig‐Like/Mannich Tandem Reactions of 2‐Alkynylnitrobenzenes with Ketones for the Synthesis of 2,2‐Disubstituted Indolin‐3‐Ones. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Hui Fan
- College of Chemical Engineering Nanjing Forestry University Nanjing 210037 People's Republic of China
| | - Yao Xu
- College of Chemical Engineering Nanjing Forestry University Nanjing 210037 People's Republic of China
| | - Fan Yang
- College of Chemical Engineering Nanjing Forestry University Nanjing 210037 People's Republic of China
| | - Shijie Xu
- College of Chemical Engineering Nanjing Forestry University Nanjing 210037 People's Republic of China
| | - Xuechun Zhao
- College of Chemical Engineering Nanjing Forestry University Nanjing 210037 People's Republic of China
| | - Xiaoxiang Zhang
- College of Chemical Engineering Nanjing Forestry University Nanjing 210037 People's Republic of China
| |
Collapse
|
3
|
Yan C, Sun J, Han Y, Yan C. Domino Reaction for Synthesis of Spiro[pyrazole‐4,5′‐pyrrolo[3,4‐
c
]carbazoles] and Spiro[pyrrolo[3,4‐
c
]carbazole‐5,5′‐thiazoles]. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Chen Yan
- College of Chemistry & Chemical Engineering Yangzhou University Yangzhou 225002 P. R. China
| | - Jing Sun
- College of Chemistry & Chemical Engineering Yangzhou University Yangzhou 225002 P. R. China
| | - Ying Han
- College of Chemistry & Chemical Engineering Yangzhou University Yangzhou 225002 P. R. China
| | - Chao‐Guo Yan
- College of Chemistry & Chemical Engineering Yangzhou University Yangzhou 225002 P. R. China
| |
Collapse
|
4
|
Karmakar S, Mandal T, Dash J. Ring Closing Metathesis Approach for the Synthesis of o
-Terphenyl Derivatives. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900988] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Shilpi Karmakar
- School of Chemical Sciences; Indian Association for the Cultivation of Science; -700032 Jadavpur, Kolkata India
| | - Tirtha Mandal
- School of Chemical Sciences; Indian Association for the Cultivation of Science; -700032 Jadavpur, Kolkata India
| | - Jyotirmayee Dash
- School of Chemical Sciences; Indian Association for the Cultivation of Science; -700032 Jadavpur, Kolkata India
| |
Collapse
|
5
|
Li G, Piemontesi C, Wang Q, Zhu J. Stereoselective Total Synthesis of Eburnane‐Type Alkaloids Enabled by Conformation‐Directed Cyclization and Rearrangement. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201813920] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Guang Li
- Laboratory of Synthesis and Natural ProductsInstitute of Chemical Sciences and EngineeringEcole Polytechnique Fédérale de LausanneEPFL-SB-ISIC-LSPN, BCH 5304 1015 Lausanne Switzerland
| | - Cyril Piemontesi
- Laboratory of Synthesis and Natural ProductsInstitute of Chemical Sciences and EngineeringEcole Polytechnique Fédérale de LausanneEPFL-SB-ISIC-LSPN, BCH 5304 1015 Lausanne Switzerland
| | - Qian Wang
- Laboratory of Synthesis and Natural ProductsInstitute of Chemical Sciences and EngineeringEcole Polytechnique Fédérale de LausanneEPFL-SB-ISIC-LSPN, BCH 5304 1015 Lausanne Switzerland
| | - Jieping Zhu
- Laboratory of Synthesis and Natural ProductsInstitute of Chemical Sciences and EngineeringEcole Polytechnique Fédérale de LausanneEPFL-SB-ISIC-LSPN, BCH 5304 1015 Lausanne Switzerland
| |
Collapse
|
6
|
Li G, Piemontesi C, Wang Q, Zhu J. Stereoselective Total Synthesis of Eburnane-Type Alkaloids Enabled by Conformation-Directed Cyclization and Rearrangement. Angew Chem Int Ed Engl 2019; 58:2870-2874. [PMID: 30600890 DOI: 10.1002/anie.201813920] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Indexed: 11/11/2022]
Abstract
Controlling the cis C20/C21 relative stereochemistry remains an unsolved issue in the synthesis of eburnane-type indole alkaloids. Provided herein is a simple solution to this problem by developing a unified and diastereoselective synthesis of four representative members of this class of natural products, namely, eburnamonine, larutensine, terengganensine B, and melokhanine E. The synthesis features the following key steps: a) an α-iminol rearrangement transforming the 3-hydroxyindolenine into spiroindolin-3-one, b) a highly diastereoselective conformation-directed cyclization leading to the melokhanine skeleton with the desired C20/C21 cis stereochemistry, and c) either an aza-pinacol or an unprecedented α-aminoketone rearrangement converting spiroindolinone back into the indole skeleton.
Collapse
Affiliation(s)
- Guang Li
- Laboratory of Synthesis and Natural Products, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH 5304, 1015, Lausanne, Switzerland
| | - Cyril Piemontesi
- Laboratory of Synthesis and Natural Products, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH 5304, 1015, Lausanne, Switzerland
| | - Qian Wang
- Laboratory of Synthesis and Natural Products, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH 5304, 1015, Lausanne, Switzerland
| | - Jieping Zhu
- Laboratory of Synthesis and Natural Products, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH 5304, 1015, Lausanne, Switzerland
| |
Collapse
|
7
|
Lauwick H, Sun Y, Akdas-Kilig H, Dérien S, Achard M. Access to 3-Oxindoles from Allylic Alcohols and Indoles. Chemistry 2018. [DOI: 10.1002/chem.201800348] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Hortense Lauwick
- Univ Rennes, ISCR (Institut des Sciences Chimiques de Rennes)-UMR 6226; F-35000 Rennes France
| | - Yang Sun
- Univ Rennes, ISCR (Institut des Sciences Chimiques de Rennes)-UMR 6226; F-35000 Rennes France
| | - Huriye Akdas-Kilig
- Univ Rennes, ISCR (Institut des Sciences Chimiques de Rennes)-UMR 6226; F-35000 Rennes France
| | - Sylvie Dérien
- Univ Rennes, ISCR (Institut des Sciences Chimiques de Rennes)-UMR 6226; F-35000 Rennes France
| | - Mathieu Achard
- Univ Rennes, ISCR (Institut des Sciences Chimiques de Rennes)-UMR 6226; F-35000 Rennes France
| |
Collapse
|
8
|
Facile synthesis of simple 2-oxindole-based compounds with promising antiproliferative activity. Future Med Chem 2018; 10:269-282. [PMID: 29334243 DOI: 10.4155/fmc-2017-0148] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
AIM Discovery of novel potent anticancer agents with lower side effects is a challenge to overcome cancer, the second leading cause of death. METHODOLOGY 2-oxindole-based hydrazides (6a-g) and benzenesulfonyl hydrazides (9a-d) were synthesized by simple condensation reactions of the appropriate hydrazides (2a-g) or (8a-d) with 1-ethyl-2,3-oxindolinedione (4). They were screened for their cytotoxicity against HepG2 (liver), MCF-7 (breast), HCT116 (colon) and A549 (lung) cancer cell lines. RESULTS The substituted benzohydrazides (6b-g) revealed higher activity and selectivity toward the tested cell lines than doxorubicin and 9a-d. Compound 6c exhibited the highest activity against MCF-7 cell line with IC50 = 0.0058 μM and it induced apoptosis by caspase-3 activation, Bax upregulation and Bcl-2 downregulation in a dose-dependent manner. CONCLUSION This compound can be considered as a potent cytotoxic agent with apoptotic induction property.
Collapse
|
9
|
Chen X, Zhang HJ, Yang X, Lv H, Shao X, Tao C, Wang H, Cheng B, Li Y, Guo J, Zhang J, Zhai H. Divergent Total Syntheses of (−)-Daphnilongeranin B and (−)-Daphenylline. Angew Chem Int Ed Engl 2017; 57:947-951. [DOI: 10.1002/anie.201709762] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Indexed: 01/04/2023]
Affiliation(s)
- Xiaoming Chen
- Shenzhen Engineering Laboratory of Nano Drug Slow Release; Key Laboratory of Chemical Genomics; Shenzhen Graduate School of Peking University; Shenzhen 518055 China
| | - Hai-Jun Zhang
- Shenzhen Engineering Laboratory of Nano Drug Slow Release; Key Laboratory of Chemical Genomics; Shenzhen Graduate School of Peking University; Shenzhen 518055 China
| | - Xinkan Yang
- The State Key Laboratory of Applied Organic Chemistry; College of Chemistry and Chemical Engineering; Lanzhou University; 222 Tianshui South Road Lanzhou 730000 China
| | - Houqiang Lv
- The State Key Laboratory of Applied Organic Chemistry; College of Chemistry and Chemical Engineering; Lanzhou University; 222 Tianshui South Road Lanzhou 730000 China
| | - Xiaoru Shao
- Shenzhen Engineering Laboratory of Nano Drug Slow Release; Key Laboratory of Chemical Genomics; Shenzhen Graduate School of Peking University; Shenzhen 518055 China
| | - Cheng Tao
- The State Key Laboratory of Applied Organic Chemistry; College of Chemistry and Chemical Engineering; Lanzhou University; 222 Tianshui South Road Lanzhou 730000 China
| | - Huifei Wang
- Shenzhen Engineering Laboratory of Nano Drug Slow Release; Key Laboratory of Chemical Genomics; Shenzhen Graduate School of Peking University; Shenzhen 518055 China
| | - Bin Cheng
- The State Key Laboratory of Applied Organic Chemistry; College of Chemistry and Chemical Engineering; Lanzhou University; 222 Tianshui South Road Lanzhou 730000 China
| | - Yun Li
- The State Key Laboratory of Applied Organic Chemistry; College of Chemistry and Chemical Engineering; Lanzhou University; 222 Tianshui South Road Lanzhou 730000 China
| | - Jingjing Guo
- The State Key Laboratory of Applied Organic Chemistry; College of Chemistry and Chemical Engineering; Lanzhou University; 222 Tianshui South Road Lanzhou 730000 China
| | - Jing Zhang
- Shenzhen Engineering Laboratory of Nano Drug Slow Release; Key Laboratory of Chemical Genomics; Shenzhen Graduate School of Peking University; Shenzhen 518055 China
| | - Hongbin Zhai
- Shenzhen Engineering Laboratory of Nano Drug Slow Release; Key Laboratory of Chemical Genomics; Shenzhen Graduate School of Peking University; Shenzhen 518055 China
- The State Key Laboratory of Applied Organic Chemistry; College of Chemistry and Chemical Engineering; Lanzhou University; 222 Tianshui South Road Lanzhou 730000 China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin); Tianjin 300071 China
| |
Collapse
|
10
|
Chen X, Zhang HJ, Yang X, Lv H, Shao X, Tao C, Wang H, Cheng B, Li Y, Guo J, Zhang J, Zhai H. Divergent Total Syntheses of (−)-Daphnilongeranin B and (−)-Daphenylline. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201709762] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Xiaoming Chen
- Shenzhen Engineering Laboratory of Nano Drug Slow Release; Key Laboratory of Chemical Genomics; Shenzhen Graduate School of Peking University; Shenzhen 518055 China
| | - Hai-Jun Zhang
- Shenzhen Engineering Laboratory of Nano Drug Slow Release; Key Laboratory of Chemical Genomics; Shenzhen Graduate School of Peking University; Shenzhen 518055 China
| | - Xinkan Yang
- The State Key Laboratory of Applied Organic Chemistry; College of Chemistry and Chemical Engineering; Lanzhou University; 222 Tianshui South Road Lanzhou 730000 China
| | - Houqiang Lv
- The State Key Laboratory of Applied Organic Chemistry; College of Chemistry and Chemical Engineering; Lanzhou University; 222 Tianshui South Road Lanzhou 730000 China
| | - Xiaoru Shao
- Shenzhen Engineering Laboratory of Nano Drug Slow Release; Key Laboratory of Chemical Genomics; Shenzhen Graduate School of Peking University; Shenzhen 518055 China
| | - Cheng Tao
- The State Key Laboratory of Applied Organic Chemistry; College of Chemistry and Chemical Engineering; Lanzhou University; 222 Tianshui South Road Lanzhou 730000 China
| | - Huifei Wang
- Shenzhen Engineering Laboratory of Nano Drug Slow Release; Key Laboratory of Chemical Genomics; Shenzhen Graduate School of Peking University; Shenzhen 518055 China
| | - Bin Cheng
- The State Key Laboratory of Applied Organic Chemistry; College of Chemistry and Chemical Engineering; Lanzhou University; 222 Tianshui South Road Lanzhou 730000 China
| | - Yun Li
- The State Key Laboratory of Applied Organic Chemistry; College of Chemistry and Chemical Engineering; Lanzhou University; 222 Tianshui South Road Lanzhou 730000 China
| | - Jingjing Guo
- The State Key Laboratory of Applied Organic Chemistry; College of Chemistry and Chemical Engineering; Lanzhou University; 222 Tianshui South Road Lanzhou 730000 China
| | - Jing Zhang
- Shenzhen Engineering Laboratory of Nano Drug Slow Release; Key Laboratory of Chemical Genomics; Shenzhen Graduate School of Peking University; Shenzhen 518055 China
| | - Hongbin Zhai
- Shenzhen Engineering Laboratory of Nano Drug Slow Release; Key Laboratory of Chemical Genomics; Shenzhen Graduate School of Peking University; Shenzhen 518055 China
- The State Key Laboratory of Applied Organic Chemistry; College of Chemistry and Chemical Engineering; Lanzhou University; 222 Tianshui South Road Lanzhou 730000 China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin); Tianjin 300071 China
| |
Collapse
|
11
|
Brütting C, Fritsche RF, Kutz SK, Börger C, Schmidt AW, Kataeva O, Knölker HJ. Synthesis of 1,1′- and 2,2′-Bicarbazole Alkaloids by Iron(III)-Catalyzed Oxidative Coupling of 2- and 1-Hydroxycarbazoles. Chemistry 2017; 24:458-470. [DOI: 10.1002/chem.201704554] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Indexed: 01/21/2023]
Affiliation(s)
- Christian Brütting
- Department Chemie; Technische Universität Dresden; Bergstraße 66 01069 Dresden Germany
| | - Raphael F. Fritsche
- Department Chemie; Technische Universität Dresden; Bergstraße 66 01069 Dresden Germany
| | - Sebastian K. Kutz
- Department Chemie; Technische Universität Dresden; Bergstraße 66 01069 Dresden Germany
| | - Carsten Börger
- Department Chemie; Technische Universität Dresden; Bergstraße 66 01069 Dresden Germany
| | - Arndt W. Schmidt
- Department Chemie; Technische Universität Dresden; Bergstraße 66 01069 Dresden Germany
| | - Olga Kataeva
- A. M. Butlerov Chemistry Institute; Kazan Federal University; Kremlevskaya Str. 18 Kazan 420008 Russia
| | - Hans-Joachim Knölker
- Department Chemie; Technische Universität Dresden; Bergstraße 66 01069 Dresden Germany
| |
Collapse
|
12
|
Tamoto A, Aratani N, Yamada H. Contraction of π‐Conjugated Rings upon Oxidation from Cyclooctatetraene to Benzene via the Tropylium Cation. Chemistry 2017; 23:16388-16392. [DOI: 10.1002/chem.201704008] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2017] [Indexed: 11/07/2022]
Affiliation(s)
- Akira Tamoto
- Graduate School of Materials Science Nara Institute of Science and Technology (NAIST), 8916-5 Takayama-cho Ikoma 630-0192 Japan
| | - Naoki Aratani
- Graduate School of Materials Science Nara Institute of Science and Technology (NAIST), 8916-5 Takayama-cho Ikoma 630-0192 Japan
| | - Hiroko Yamada
- Graduate School of Materials Science Nara Institute of Science and Technology (NAIST), 8916-5 Takayama-cho Ikoma 630-0192 Japan
| |
Collapse
|
13
|
Maiti S, Burgula L, Chakraborti G, Dash J. Palladium-Catalyzed Pyridine-Directed Regioselective Oxidative C-H Acylation of Carbazoles by Using Aldehydes as the Acyl Source. European J Org Chem 2016. [DOI: 10.1002/ejoc.201601322] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Subhadip Maiti
- Department of Organic Chemistry; Indian Association for the Cultivation of Science; Jadavpur 700032 Kolkata India
| | - Laxminarayana Burgula
- Department of Organic Chemistry; Indian Association for the Cultivation of Science; Jadavpur 700032 Kolkata India
| | - Gargi Chakraborti
- Department of Organic Chemistry; Indian Association for the Cultivation of Science; Jadavpur 700032 Kolkata India
| | - Jyotirmayee Dash
- Department of Organic Chemistry; Indian Association for the Cultivation of Science; Jadavpur 700032 Kolkata India
| |
Collapse
|
14
|
Kotha S, Ravikumar O. Ring-Rearrangement-Metathesis Approach to Polycycles: Substrate-Controlled Stereochemical Outcome During Grignard Addition. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600596] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Sambasivarao Kotha
- Department of Chemistry; Indian Institute of Technology-Bombay; Powai India
| | - Ongolu Ravikumar
- Department of Chemistry; Indian Institute of Technology-Bombay; Powai India
| |
Collapse
|