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Yang X, Miao X, Dai L, Guo X, Jenis J, Zhang J, Shang X. Isolation, biological activity, and synthesis of isoquinoline alkaloids. Nat Prod Rep 2024. [PMID: 39355982 DOI: 10.1039/d4np00023d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/03/2024]
Abstract
Covering: 2019 to 2023Isoquinoline alkaloids, an important class of N-based heterocyclic compounds, have attracted considerable attention from researchers worldwide. To follow up on our prior review (covering 2014-2018) and present the progress of this class of compounds, this review summarizes and provides updated literature on novel isoquinoline alkaloids isolated during the period of 2019-2023, together with their biological activity and underlying mechanisms of action. Moreover, with the rapid development of synthetic modification strategies, the synthesis strategies of isoquinoline alkaloids have been continuously optimized, and the total synthesis of these classes of natural products is reviewed critically herein. Over 250 molecules with a broad range of bioactivities, including antitumor, antibacterial, cardioprotective, anti-inflammatory, neuroprotective and other activities, are isolated and discussed. The total synthesis of more than nine classes of isoquinoline alkaloids is presented, and thirteen compounds constitute the first total synthesis. This survey provides new indications or possibilities for the discovery of new drugs from the original naturally occurring isoquinoline alkaloids.
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Affiliation(s)
- Xiaorong Yang
- Key Laboratory of Veterinary Pharmaceutical Development of Ministry of Agriculture, Key Laboratory of New Animal Drug Project, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou 730050, Gansu Province, PR China.
- China-Kazakh Joint Research Center for Natural Veterinary Drug, Lanzhou 730050, P. R. China
| | - Xiaolou Miao
- Key Laboratory of Veterinary Pharmaceutical Development of Ministry of Agriculture, Key Laboratory of New Animal Drug Project, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou 730050, Gansu Province, PR China.
- China-Kazakh Joint Research Center for Natural Veterinary Drug, Lanzhou 730050, P. R. China
| | - Lixia Dai
- Key Laboratory of Veterinary Pharmaceutical Development of Ministry of Agriculture, Key Laboratory of New Animal Drug Project, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou 730050, Gansu Province, PR China.
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, China
| | - Xiao Guo
- Tibetan Medicine Research Center of Qinghai University, Qinghai University Tibetan Medical College, Qinghai University, Xining 810016, P. R. China
| | - Janar Jenis
- The Research Center for Medicinal Plants, Al-Farabi Kazakh National University, Almaty 050040, Kazakhstan
| | - Jiyu Zhang
- Key Laboratory of Veterinary Pharmaceutical Development of Ministry of Agriculture, Key Laboratory of New Animal Drug Project, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou 730050, Gansu Province, PR China.
- China-Kazakh Joint Research Center for Natural Veterinary Drug, Lanzhou 730050, P. R. China
| | - Xiaofei Shang
- Key Laboratory of Veterinary Pharmaceutical Development of Ministry of Agriculture, Key Laboratory of New Animal Drug Project, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou 730050, Gansu Province, PR China.
- China-Kazakh Joint Research Center for Natural Veterinary Drug, Lanzhou 730050, P. R. China
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, China
- Tibetan Medicine Research Center of Qinghai University, Qinghai University Tibetan Medical College, Qinghai University, Xining 810016, P. R. China
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Electrocyclizations of Conjugated Azapolyenes Produced in Reactions of Azaheterocycles with Metal Carbenes. ORGANICS 2021. [DOI: 10.3390/org2030017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Conjugated azapolyenes (azabuta-1,3-dienes, aza-/diaza-/oxaza-/oxadiazahexa-1,3,5-trienes) are highly reactive in electrocyclization reactions, which makes them convenient precursors for the synthesis of a wide range of four-, five-, and six-membered nitrogen heterocycles that are of relevance for medicinal chemistry. Ring opening reactions of 2H-azirines and azoles containing an N–N or N–O bond, initiated by a transition metal carbene, have become increasingly important in recent years, since they easily allow the generation of azapolyenes with different numbers of double bonds and heteroatoms in various positions. This review summarizes the literature, published mainly in the last decade, on the synthetic and mechanistic aspects of electrocyclizations of azapolyenes generated by the carbene method.
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Filippov IP, Novikov MS, Khlebnikov AF, Rostovskii NV. Pseudopericyclic Dearomative 1,6-Cyclization of 1-(2-Pyridyl)-2-azabuta-1,3-dienes: Synthesis and Ring-Chain Valence Equilibria of 4H
-Pyrido[1,2-a
]pyrazines. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000210] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Ilya P. Filippov
- Institute of Chemistry; St. Petersburg State University; 7/9 Universitetskaya nab. 199034 St. Petersburg Russia
| | - Mikhail S. Novikov
- Institute of Chemistry; St. Petersburg State University; 7/9 Universitetskaya nab. 199034 St. Petersburg Russia
| | - Alexander F. Khlebnikov
- Institute of Chemistry; St. Petersburg State University; 7/9 Universitetskaya nab. 199034 St. Petersburg Russia
| | - Nikolai V. Rostovskii
- Institute of Chemistry; St. Petersburg State University; 7/9 Universitetskaya nab. 199034 St. Petersburg Russia
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Vargas DF, Larghi EL, Kaufman TS. First total synthesis of ampullosine, a unique isoquinoline alkaloid isolated from Sepedonium ampullosporum, and of the related permethylampullosine. RSC Adv 2019; 9:33096-33106. [PMID: 35529133 PMCID: PMC9073199 DOI: 10.1039/c9ra06839b] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Accepted: 10/07/2019] [Indexed: 12/02/2022] Open
Abstract
A straightforward and convenient approach toward the first total synthesis of ampullosine, a structurally unique 3-methylisoquinoline alkaloid isolated from Sepedonium ampullosporum, is reported. Access to the related O-methyl ampullosine methyl ester from a common intermediate is also disclosed. The synthetic sequence toward the natural product comprised a Kolbe-type carboxylation of 3,5-dihydroxybenzoic acid and further esterification of the diacid, followed by masking of one of the phenols through selective ester reduction and subsequent acetonide formation. Installation of the three-carbon atom required for the 3-methylpyridine ring was performed by triflation of the remaining free phenol and a Pd-catalyzed Suzuki-Miyaura reaction with potassium E-propenyltrifluoroborate. Deprotection of the acetonide, followed by partial oxidation of the benzylic alcohol to the salicylaldehyde, O-methylation of the free phenol and hydrazonation of the resulting ortho-anisaldehyde derivative gave a hydrazone-based 1-azatriene. This was further subjected to 6π-azaelectrocyclization to afford permethylampullosine (11 steps, 14% overall yield), whereas exhaustive demethylation with AlI3 generated in situ gave ampullosine (12 steps, 3.2% global yield).
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Affiliation(s)
- Didier F Vargas
- Instituto de Química Rosario (IQUIR, CONICET-UNR), Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario Suipacha 531 S2002LRK Rosario Argentina
| | - Enrique L Larghi
- Instituto de Química Rosario (IQUIR, CONICET-UNR), Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario Suipacha 531 S2002LRK Rosario Argentina
| | - Teodoro S Kaufman
- Instituto de Química Rosario (IQUIR, CONICET-UNR), Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario Suipacha 531 S2002LRK Rosario Argentina
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Makarov AS, Uchuskin MG, Hashmi ASK. Intramolecular azavinyl carbene-triggered rearrangement of furans. Chem Sci 2019; 10:8583-8588. [PMID: 31803433 PMCID: PMC6839507 DOI: 10.1039/c9sc02299f] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2019] [Accepted: 07/16/2019] [Indexed: 01/16/2023] Open
Abstract
An intramolecular rhodium-catalyzed reaction of 1-tosyl-1,2,3-triazoles with furans has been explored. The tosylimino functionality was found to play a significant chemical role participating in the subsequent domino-transformations of a key reaction intermediate. One of the reaction pathways leads to valuable 2-formyl- and 2-acetylpyridine building blocks, which could be obtained in one-pot starting from easily accessible (furan-2-ylmethyl)propargyl amines. An original method for the synthesis of highly functionalized indolizines from the obtained pyridines has been proposed.
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Affiliation(s)
- Anton S Makarov
- Department of Chemistry , Perm State University , Bukireva 15 , 614990 Perm , Russia .
| | - Maxim G Uchuskin
- Department of Chemistry , Perm State University , Bukireva 15 , 614990 Perm , Russia .
| | - A Stephen K Hashmi
- Institut für Organische Chemie , Heidelberg University , Im Neuenheimer Feld 270 , 69120 Heidelberg , Germany
- Chemistry Department , King Abdulaziz University , Jeddah 21589 , Saudi Arabia .
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