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Yadav M, Pandhade KR, Argade NP. Chemoselective Ring Closure of 4-(3-Methyl-2-oxo-2,5-dihydro-1 H-pyrrol-1-yl)butanal Leading to Pandalizine A. ACS OMEGA 2020; 5:859-863. [PMID: 31956837 PMCID: PMC6964528 DOI: 10.1021/acsomega.9b03760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Accepted: 12/18/2019] [Indexed: 06/10/2023]
Abstract
Starting from methylmaleic anhydride, a facile total synthesis of pandalizine A alkaloid is described via the regioselective reduction of methylmaleimide and acid-catalyzed enolization of 4-(3-methyl-2-oxo-2,5-dihydro-1H-pyrrol-1-yl)butanal followed by chemoselective intramolecular dehydrative cyclization as the key steps. It is noteworthy that the analogous model system with an additional β-methyl group followed an alternative chemoselective intermolecular aldol condensation pathway.
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Affiliation(s)
- Mahesh
B. Yadav
- Division of Organic
Chemistry, National Chemical Laboratory
(CSIR), Pune 411 008, India
- Academy
of Scientific and Innovative Research (AcSIR), New Delhi 110 025, India
| | - Kailas R. Pandhade
- Division of Organic
Chemistry, National Chemical Laboratory
(CSIR), Pune 411 008, India
- Academy
of Scientific and Innovative Research (AcSIR), New Delhi 110 025, India
| | - Narshinha P. Argade
- Division of Organic
Chemistry, National Chemical Laboratory
(CSIR), Pune 411 008, India
- Academy
of Scientific and Innovative Research (AcSIR), New Delhi 110 025, India
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2
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Zhang J, He Y, Jiang X, Jiang H, Shen J. Nature brings new avenues to the therapy of central nervous system diseases—An overview of possible treatments derived from natural products. SCIENCE CHINA-LIFE SCIENCES 2019; 62:1332-1367. [DOI: 10.1007/s11427-019-9587-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Accepted: 07/01/2019] [Indexed: 12/11/2022]
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3
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Disadee W, Ruchirawat S. One-pot cascade synthesis of azabicycles via the nitro-Mannich reaction and N-alkylation. Org Biomol Chem 2019; 16:707-711. [PMID: 29334104 DOI: 10.1039/c7ob03104a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A one-pot, metal-free process for the synthesis of azabicycles is developed. The key transformations involved a cascade of double intramolecular cyclizations via the nitro-Mannich reaction and N-alkylation, providing various ring systems of azabicycles in yields up to 81% and an isomeric ratio of 62 : 1. This approach offers considerable advantages in terms of the handling of small molecules, the flexibility to introduce a functionalized side chain, and gives direct access to various azabicycles.
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Affiliation(s)
- Wannaporn Disadee
- Laboratory of Medicinal Chemistry, Chulabhorn Research Institute, Laksi, Bangkok 10210, Thailand.
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4
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Schramm S, Köhler N, Rozhon W. Pyrrolizidine Alkaloids: Biosynthesis, Biological Activities and Occurrence in Crop Plants. Molecules 2019; 24:E498. [PMID: 30704105 PMCID: PMC6385001 DOI: 10.3390/molecules24030498] [Citation(s) in RCA: 77] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Revised: 01/28/2019] [Accepted: 01/29/2019] [Indexed: 12/13/2022] Open
Abstract
Pyrrolizidine alkaloids (PAs) are heterocyclic secondary metabolites with a typical pyrrolizidine motif predominantly produced by plants as defense chemicals against herbivores. They display a wide structural diversity and occur in a vast number of species with novel structures and occurrences continuously being discovered. These alkaloids exhibit strong hepatotoxic, genotoxic, cytotoxic, tumorigenic, and neurotoxic activities, and thereby pose a serious threat to the health of humans since they are known contaminants of foods including grain, milk, honey, and eggs, as well as plant derived pharmaceuticals and food supplements. Livestock and fodder can be affected due to PA-containing plants on pastures and fields. Despite their importance as toxic contaminants of agricultural products, there is limited knowledge about their biosynthesis. While the intermediates were well defined by feeding experiments, only one enzyme involved in PA biosynthesis has been characterized so far, the homospermidine synthase catalyzing the first committed step in PA biosynthesis. This review gives an overview about structural diversity of PAs, biosynthetic pathways of necine base, and necic acid formation and how PA accumulation is regulated. Furthermore, we discuss their role in plant ecology and their modes of toxicity towards humans and animals. Finally, several examples of PA-producing crop plants are discussed.
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Affiliation(s)
- Sebastian Schramm
- Biotechnology of Horticultural Crops, TUM School of Life Sciences Weihenstephan, Technical University of Munich, Liesel-Beckmann-Straße 1, 85354 Freising, Germany.
| | - Nikolai Köhler
- Biotechnology of Horticultural Crops, TUM School of Life Sciences Weihenstephan, Technical University of Munich, Liesel-Beckmann-Straße 1, 85354 Freising, Germany.
| | - Wilfried Rozhon
- Biotechnology of Horticultural Crops, TUM School of Life Sciences Weihenstephan, Technical University of Munich, Liesel-Beckmann-Straße 1, 85354 Freising, Germany.
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5
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Koizumi A, Harada M, Haraguchi R, Fukuzawa SI. Chiral Silver Complex-Catalyzed Diastereoselective and Enantioselective Michael Addition of 1-Pyrroline-5-carboxylates to α-Enones. J Org Chem 2017; 82:8927-8932. [DOI: 10.1021/acs.joc.7b01335] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Akihiro Koizumi
- Department of Applied Chemistry,
Institute of Science and Engineering, Chuo University, 1-13-27 Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan
| | - Masato Harada
- Department of Applied Chemistry,
Institute of Science and Engineering, Chuo University, 1-13-27 Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan
| | - Ryosuke Haraguchi
- Department of Applied Chemistry,
Institute of Science and Engineering, Chuo University, 1-13-27 Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan
| | - Shin-ichi Fukuzawa
- Department of Applied Chemistry,
Institute of Science and Engineering, Chuo University, 1-13-27 Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan
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Robertson J, Stevens K. Pyrrolizidine alkaloids: occurrence, biology, and chemical synthesis. Nat Prod Rep 2017; 34:62-89. [PMID: 27782262 DOI: 10.1039/c5np00076a] [Citation(s) in RCA: 98] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Covering: 2013 up to the end of 2015This review covers the isolation and structure of new pyrrolizidines; pyrrolizidine biosynthesis; biological activity, including the occurrence of pyrrolizidines as toxic components or contaminants in foods and beverages; and formal and total syntheses of naturally-occurring pyrrolizidine alkaloids and closely related non-natural analogues.
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Affiliation(s)
- Jeremy Robertson
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford, OX1 3TA, UK.
| | - Kiri Stevens
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford, OX1 3TA, UK.
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Kalaitzakis D, Triantafyllakis M, Sofiadis M, Noutsias D, Vassilikogiannakis G. Photooxygenation of Furylalkylamines: Easy Access to Pyrrolizidine and Indolizidine Scaffolds. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201600988] [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)
- Dimitris Kalaitzakis
- Department of Chemistry; University of Crete; Vasilika Vouton 71003 Iraklion Crete Greece
| | - Myron Triantafyllakis
- Department of Chemistry; University of Crete; Vasilika Vouton 71003 Iraklion Crete Greece
| | - Manolis Sofiadis
- Department of Chemistry; University of Crete; Vasilika Vouton 71003 Iraklion Crete Greece
| | - Dimitris Noutsias
- Department of Chemistry; University of Crete; Vasilika Vouton 71003 Iraklion Crete Greece
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8
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Kalaitzakis D, Triantafyllakis M, Sofiadis M, Noutsias D, Vassilikogiannakis G. Photooxygenation of Furylalkylamines: Easy Access to Pyrrolizidine and Indolizidine Scaffolds. Angew Chem Int Ed Engl 2016; 55:4605-9. [DOI: 10.1002/anie.201600988] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Revised: 02/11/2016] [Indexed: 12/16/2022]
Affiliation(s)
- Dimitris Kalaitzakis
- Department of Chemistry; University of Crete; Vasilika Vouton 71003 Iraklion Crete Greece
| | - Myron Triantafyllakis
- Department of Chemistry; University of Crete; Vasilika Vouton 71003 Iraklion Crete Greece
| | - Manolis Sofiadis
- Department of Chemistry; University of Crete; Vasilika Vouton 71003 Iraklion Crete Greece
| | - Dimitris Noutsias
- Department of Chemistry; University of Crete; Vasilika Vouton 71003 Iraklion Crete Greece
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Benamar H, Tomassini L, Venditti A, Marouf A, Bennaceur M, Nicoletti M. Pyrrolizidine alkaloids from Solenanthus lanatus DC. with acetylcholinesterase inhibitory activity. Nat Prod Res 2016; 30:2567-2574. [PMID: 26735939 DOI: 10.1080/14786419.2015.1131984] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
The whole plant ethanolic extract of Solenanthus lanatus was used for the isolation of acetylcholinesterase inhibitors. A new pyrrolizidine alkaloid, 7-O-angeloylechinatine N-oxide, 1, was isolated together with three known compounds of the same class (3'-O-acetylheliosupine N-oxide, 2, heliosupine N-oxide, 3, and heliosupine, 4), by bioassay-guided approach. Their structures were elucidated by spectroscopic methods. All the isolated compounds showed inhibition activity against the AChE, with IC50 0.53-0.60 mM.
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Affiliation(s)
- Houari Benamar
- a Laboratory of Biochemistry and Natural Products, Department of Biology, Faculty of Natural Sciences and Life , University of Oran 1 Ahmed Benbella , Oran , Algeria.,b Department of Biology, Faculty of Natural Sciences and Life , University of Mostaganem Abdelhamid Ibn Badis , Mostaganem , Algeria
| | - Lamberto Tomassini
- c Department of Environmental Biology , University "Sapienza" , Rome , Italy
| | - Alessandro Venditti
- c Department of Environmental Biology , University "Sapienza" , Rome , Italy
| | - Abderrazak Marouf
- a Laboratory of Biochemistry and Natural Products, Department of Biology, Faculty of Natural Sciences and Life , University of Oran 1 Ahmed Benbella , Oran , Algeria.,d Institute of Science and Technology , Department of Natural Sciences and Life , Ctr Univ Naama , Naama , Algeria
| | - Malika Bennaceur
- a Laboratory of Biochemistry and Natural Products, Department of Biology, Faculty of Natural Sciences and Life , University of Oran 1 Ahmed Benbella , Oran , Algeria.,e Laboratory of Research in Arid Areas, Faculty of Biological Sciences , University of Science and Technology Houari Boumediene , Algiers , Algeria
| | - Marcello Nicoletti
- c Department of Environmental Biology , University "Sapienza" , Rome , Italy
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Ye JL, Chen H, Zhang YF, Huang PQ. A versatile access to vicinal diamine motifs by highly anti-selective asymmetric vinylogous Mannich reactions: an efficient total synthesis of (+)-absouline. Org Chem Front 2016. [DOI: 10.1039/c6qo00022c] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An anti-stereoselective vinylogous Mannich reaction between 2-TBSO-pyrrole and N-tert-butanesulfinyl imines and its application to the efficient synthesis of (+)-absouline were reported.
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Affiliation(s)
- Jian-Liang Ye
- Department of Chemistry and Fujian Provincial Key Laboratory of Chemical Biology
- iChEM (Collaborative Innovation Center of Chemistry for Energy Materials)
- College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen
| | - Hang Chen
- Department of Chemistry and Fujian Provincial Key Laboratory of Chemical Biology
- iChEM (Collaborative Innovation Center of Chemistry for Energy Materials)
- College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen
| | - Yu-Feng Zhang
- Department of Chemistry and Fujian Provincial Key Laboratory of Chemical Biology
- iChEM (Collaborative Innovation Center of Chemistry for Energy Materials)
- College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen
| | - Pei-Qiang Huang
- Department of Chemistry and Fujian Provincial Key Laboratory of Chemical Biology
- iChEM (Collaborative Innovation Center of Chemistry for Energy Materials)
- College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen
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Pouny I, Batut M, Vendier L, David B, Yi S, Sautel F, Arimondo PB, Massiot G. Cytisine-like alkaloids from Ormosia hosiei Hemsl. & E.H. Wilson. PHYTOCHEMISTRY 2014; 107:97-101. [PMID: 25172516 DOI: 10.1016/j.phytochem.2014.07.022] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2014] [Revised: 07/22/2014] [Accepted: 07/23/2014] [Indexed: 06/03/2023]
Abstract
Four alkaloids named hosieines A-D were isolated from the root and stem of Ormosia hosiei. Their flat structures were established by mass spectrometry and by a combination of NMR experiments. These molecules probably share a common biosynthetic origin with the lupin alkaloids but they differ in the formation of the last ring, being here part of a rare 2-azabicyclo[3.2.1]octane system. Their absolute configuration was determined by X-ray crystallography using CuKα radiation. As has been described for cytisine, they display a remarkable affinity towards neuronal nicotinic acetylcholine α4β2 receptor.
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Affiliation(s)
- Isabelle Pouny
- USR CNRS-Pierre Fabre No. 3388 ETaC, Centre de Recherche et Développement Pierre Fabre, 3 Avenue Hubert Curien, 31035 Toulouse Cedex 01, France
| | - Muriel Batut
- USR CNRS-Pierre Fabre No. 3388 ETaC, Centre de Recherche et Développement Pierre Fabre, 3 Avenue Hubert Curien, 31035 Toulouse Cedex 01, France
| | - Laure Vendier
- UPR CNRS No. 8241, Laboratoire de Chimie de Coordination, 205 route de Narbonne, 31077 Toulouse Cedex 04, France
| | - Bruno David
- Pôle Actifs Végétaux, Institut de Recherche Pierre Fabre, 3 Avenue Hubert Curien, 31035 Toulouse Cedex 01, France
| | - Sirong Yi
- Chongqing Institute of Medicinal Plant Cultivation, Sanquan Country of Nanchuang, 408435 Chongqing, PR China
| | - François Sautel
- USR CNRS-Pierre Fabre No. 3388 ETaC, Centre de Recherche et Développement Pierre Fabre, 3 Avenue Hubert Curien, 31035 Toulouse Cedex 01, France
| | - Paola B Arimondo
- USR CNRS-Pierre Fabre No. 3388 ETaC, Centre de Recherche et Développement Pierre Fabre, 3 Avenue Hubert Curien, 31035 Toulouse Cedex 01, France
| | - Georges Massiot
- USR CNRS-Pierre Fabre No. 3388 ETaC, Centre de Recherche et Développement Pierre Fabre, 3 Avenue Hubert Curien, 31035 Toulouse Cedex 01, France.
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12
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Erdmann A, Halby L, Cantagrel F, Sautel F, Massiot G, Arimondo PB. Alternative synthetic route to annulated diaminopyrimidines. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.05.057] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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