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Li W, Wang Y, Qi H, Shi R, Li J, Chen S, Xu XM, Wang WL. Diverse privileged N-polycyclic skeletons accessed from a metal-free cascade cyclization reaction. Org Biomol Chem 2021; 19:8086-8095. [PMID: 34476428 DOI: 10.1039/d1ob01206a] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
An exquisite metal-free cascade cyclization reaction of 2-acylbenzoic acids with amines was developed, which provided a powerful method for the one-pot synthesis of diverse isoindoloisoquinoline and benzoindolizinoindole derivatives. This protocol avoided the use of metal catalysts, proceeded with high efficiency and had broad substrate scope. These resulting products could be transformed into tertiary amines under the reduction of LiAlH4/AlCl3, followed by the Hofmann elimination offering lots of nitrogen-containing nine-membered ring compounds in excellent yields. All synthesized products containing fused N-polycyclic skeletons were difficult to be constructed using traditional methods and they have a wide range of applications in the pharmaceutical area.
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Affiliation(s)
- Wenzhong Li
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China.
| | - Yu Wang
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China.
| | - Huijing Qi
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China.
| | - Ran Shi
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China.
| | - Jiazhu Li
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China.
| | - Si Chen
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China.
| | - Xin-Ming Xu
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China.
| | - Wei-Li Wang
- School of Chemistry and Materials Science, Ludong University, Yantai 264005, China
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2
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Synthesis of diverse 2,3,4,5-tetrahydro-1H-azepine derivatives via sequential Knoevenagel reaction and Michael addition of tertiary enamide. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.153174] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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3
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4
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5
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Calcaterra A, Mangiardi L, Delle Monache G, Quaglio D, Balducci S, Berardozzi S, Iazzetti A, Franzini R, Botta B, Ghirga F. The Pictet-Spengler Reaction Updates Its Habits. Molecules 2020; 25:E414. [PMID: 31963860 PMCID: PMC7024544 DOI: 10.3390/molecules25020414] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Revised: 01/05/2020] [Accepted: 01/09/2020] [Indexed: 12/31/2022] Open
Abstract
The Pictet-Spengler reaction (P-S) is one of the most direct, efficient, and variable synthetic method for the construction of privileged pharmacophores such as tetrahydro-isoquinolines (THIQs), tetrahydro-β-carbolines (THBCs), and polyheterocyclic frameworks. In the lustro (five-year period) following its centenary birthday, the P-S reaction did not exit the stage but it came up again on limelight with new features. This review focuses on the interesting results achieved in this period (2011-2015), analyzing the versatility of this reaction. Classic P-S was reported in the total synthesis of complex alkaloids, in combination with chiral catalysts as well as for the generation of libraries of compounds in medicinal chemistry. The P-S has been used also in tandem reactions, with the sequences including ring closing metathesis, isomerization, Michael addition, and Gold- or Brønsted acid-catalyzed N-acyliminium cyclization. Moreover, the combination of P-S reaction with Ugi multicomponent reaction has been exploited for the construction of highly complex polycyclic architectures in few steps and high yields. The P-S reaction has also been successfully employed in solid-phase synthesis, affording products with different structures, including peptidomimetics, synthetic heterocycles, and natural compounds. Finally, the enzymatic version of P-S has been reported for biosynthesis, biotransformations, and bioconjugations.
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Affiliation(s)
- Andrea Calcaterra
- Department of Chemistry and Technology of Drugs, “Department of Excellence 2018−2022”, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy; (L.M.); (G.D.M.); (D.Q.); (S.B.); (A.I.); (R.F.); (B.B.)
| | - Laura Mangiardi
- Department of Chemistry and Technology of Drugs, “Department of Excellence 2018−2022”, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy; (L.M.); (G.D.M.); (D.Q.); (S.B.); (A.I.); (R.F.); (B.B.)
- Center for Life Nano Science@Sapienza, Istituto Italiano di Tecnologia, Viale Regina Elena 291, 00161 Rome, Italy;
| | - Giuliano Delle Monache
- Department of Chemistry and Technology of Drugs, “Department of Excellence 2018−2022”, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy; (L.M.); (G.D.M.); (D.Q.); (S.B.); (A.I.); (R.F.); (B.B.)
| | - Deborah Quaglio
- Department of Chemistry and Technology of Drugs, “Department of Excellence 2018−2022”, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy; (L.M.); (G.D.M.); (D.Q.); (S.B.); (A.I.); (R.F.); (B.B.)
| | - Silvia Balducci
- Department of Chemistry and Technology of Drugs, “Department of Excellence 2018−2022”, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy; (L.M.); (G.D.M.); (D.Q.); (S.B.); (A.I.); (R.F.); (B.B.)
| | - Simone Berardozzi
- Department of Chemistry and Applied Biosciences, ETH-Zürich, Vladimir-Prelog Weg 4, 8093 Zürich, Switzerland
| | - Antonia Iazzetti
- Department of Chemistry and Technology of Drugs, “Department of Excellence 2018−2022”, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy; (L.M.); (G.D.M.); (D.Q.); (S.B.); (A.I.); (R.F.); (B.B.)
| | - Roberta Franzini
- Department of Chemistry and Technology of Drugs, “Department of Excellence 2018−2022”, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy; (L.M.); (G.D.M.); (D.Q.); (S.B.); (A.I.); (R.F.); (B.B.)
| | - Bruno Botta
- Department of Chemistry and Technology of Drugs, “Department of Excellence 2018−2022”, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy; (L.M.); (G.D.M.); (D.Q.); (S.B.); (A.I.); (R.F.); (B.B.)
| | - Francesca Ghirga
- Center for Life Nano Science@Sapienza, Istituto Italiano di Tecnologia, Viale Regina Elena 291, 00161 Rome, Italy;
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Yu L, Zhong Y, Yu J, Gan L, Cai Z, Wang R, Jiang X. Highly diastereoselective oxa-[3+3] cyclization with C,N-cyclic azomethine imines via the copper-catalyzed aerobic oxygenated CC bond of indoles. Chem Commun (Camb) 2018; 54:2353-2356. [DOI: 10.1039/c7cc09640b] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, a copper-catalyzed highly diastereoselective aerobic oxygenated [3+3] cyclization of 3-substituted indoles with C,N-cyclic azomethine imines using oxygen as the sole oxidant under mild conditions has been developed.
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Affiliation(s)
- Lemao Yu
- School of Pharmaceutical Sciences
- Sun Yat-sen University
- Guangzhou
- China
| | - Yuan Zhong
- School of Pharmaceutical Sciences
- Sun Yat-sen University
- Guangzhou
- China
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province
| | - Jicong Yu
- School of Pharmaceutical Sciences
- Sun Yat-sen University
- Guangzhou
- China
| | - Lu Gan
- School of Pharmaceutical Sciences
- Sun Yat-sen University
- Guangzhou
- China
| | - Zhengjun Cai
- School of Pharmaceutical Sciences
- Sun Yat-sen University
- Guangzhou
- China
| | - Rui Wang
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province
- School of Basic Medical Sciences
- Lanzhou University
- Lanzhou
- China
| | - Xianxing Jiang
- School of Pharmaceutical Sciences
- Sun Yat-sen University
- Guangzhou
- China
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7
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Huang Y, Yi W, Sun Q, Zhang L, Yi F. A new and facile approach to 1,2-dihydroisoquinolin-3(4H)-imines by the Cu(i)-catalyzed reaction of 2-ethynylbenzyl methanesulfonates, sulfonyl azides and amines. RSC Adv 2018. [DOI: 10.1039/c7ra12412k] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
A new, step-economical and operationally simple access to unsubstituted 1,2-dihydroisoquinolin-3(4H)-imines by Cu-catalyzed MCRs under mild conditions is described.
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Affiliation(s)
- Ying Huang
- School of Perfume and Aroma Technology
- Shanghai Institute of Technology
- Shanghai 201418
- P. R. China
| | - Weiyin Yi
- School of Perfume and Aroma Technology
- Shanghai Institute of Technology
- Shanghai 201418
- P. R. China
| | - Qihui Sun
- School of Perfume and Aroma Technology
- Shanghai Institute of Technology
- Shanghai 201418
- P. R. China
| | - Lirong Zhang
- School of Perfume and Aroma Technology
- Shanghai Institute of Technology
- Shanghai 201418
- P. R. China
| | - Fengping Yi
- School of Perfume and Aroma Technology
- Shanghai Institute of Technology
- Shanghai 201418
- P. R. China
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8
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Aranzamendi E, Sotomayor N, Lete E. Phenolic Activation in Chiral Brønsted Acid-Catalyzed Intramolecular α-Amidoalkylation Reactions for the Synthesis of Fused Isoquinolines. ACS OMEGA 2017; 2:2706-2718. [PMID: 31457610 PMCID: PMC6641169 DOI: 10.1021/acsomega.7b00170] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Accepted: 06/05/2017] [Indexed: 05/07/2023]
Abstract
An organolithium addition-intramolecular α-amidoalkylation sequence on N-phenethylimides has been developed for the synthesis of fused tetrahydroisoquinoline systems using 1,1'-bi-2-naphthol (binol)-derived Brønsted acids. This transformation is the first in which activated benzene derivatives are used as internal nucleophiles, instead of electron-rich heteroaromatics, generating a quaternary stereocenter. Phenolic substitution on the aromatic ring of the phenethylamino moiety and the use of binol-derived N-triflylphosphoramides as catalysts are determinants to achieve reasonable levels of enantioselection, that is, up to 75% enantiomeric excess, in the α-amidoalkylation step. The procedure is complementary to the intermolecular α-amidoalkylation process, as opposite enantiomers are formed, and to the Pictet-Spengler cyclization, which allows the formation of tertiary stereocenters.
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9
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Aranzamendi E, Arrasate S, Sotomayor N, González‐Díaz H, Lete E. Chiral Brønsted Acid-Catalyzed Enantioselective α-Amidoalkylation Reactions: A Joint Experimental and Predictive Study. ChemistryOpen 2016; 5:540-549. [PMID: 28032023 PMCID: PMC5167290 DOI: 10.1002/open.201600120] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Indexed: 01/01/2023] Open
Abstract
Enamides with a free NH group have been evaluated as nucleophiles in chiral Brønsted acid-catalyzed enantioselective α-amidoalkylation reactions of bicyclic hydroxylactams for the generation of quaternary stereocenters. A quantitative structure-reactivity relationship (QSRR) method has been developed to find a useful tool to rationalize the enantioselectivity in this and related processes and to orient the catalyst choice. This correlative perturbation theory (PT)-QSRR approach has been used to predict the effect of the structure of the substrate, nucleophile, and catalyst, as well as the experimental conditions, on the enantioselectivity. In this way, trends to improve the experimental results could be found without engaging in a long-term empirical investigation.
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Affiliation(s)
- Eider Aranzamendi
- Departamento de Química Orgánica IIFacultad de Ciencia y TecnologíaUniversidad del País Vasco/Euskal Herriko Unibertsitatea (UPV/EHU)Apdo. 64448080BilbaoSpain
| | - Sonia Arrasate
- Departamento de Química Orgánica IIFacultad de Ciencia y TecnologíaUniversidad del País Vasco/Euskal Herriko Unibertsitatea (UPV/EHU)Apdo. 64448080BilbaoSpain
| | - Nuria Sotomayor
- Departamento de Química Orgánica IIFacultad de Ciencia y TecnologíaUniversidad del País Vasco/Euskal Herriko Unibertsitatea (UPV/EHU)Apdo. 64448080BilbaoSpain
| | - Humberto González‐Díaz
- Departamento de Química Orgánica IIFacultad de Ciencia y TecnologíaUniversidad del País Vasco/Euskal Herriko Unibertsitatea (UPV/EHU)Apdo. 64448080BilbaoSpain
- IKERBASQUEBasque Foundation for Science48080BilbaoSpain
| | - Esther Lete
- Departamento de Química Orgánica IIFacultad de Ciencia y TecnologíaUniversidad del País Vasco/Euskal Herriko Unibertsitatea (UPV/EHU)Apdo. 64448080BilbaoSpain
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Larik FA, Saeed A, Muqadar U, Channar PA. Application of Lawesson’s reagent in the synthesis of sulfur-containing medicinally significant natural alkaloids. J Sulphur Chem 2016. [DOI: 10.1080/17415993.2016.1255743] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Fayaz Ali Larik
- Department of Chemistry, Quaid-i-Azam University, Islamabad, Pakistan
| | - Aamer Saeed
- Department of Chemistry, Quaid-i-Azam University, Islamabad, Pakistan
| | - Urooj Muqadar
- Department of Chemistry, Quaid-i-Azam University, Islamabad, Pakistan
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11
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Gharpure SJ, Prasath V, Kumar V. Stereoselective synthesis of 2,3-disubstituted indoline, pyrrolidine and cyclic ether-fused 1,2-dihydroquinoline derivatives using alkyne iminium ion cyclization of vinylogous carbamates: switch of regioselectivity using an internal hydroxy group as a nucleophile. Chem Commun (Camb) 2015; 51:13623-6. [DOI: 10.1039/c5cc05292k] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
TMSOTf promoted alkyne iminium ion cyclization of vinylogous carbamates gives stereoselective access to indolines, pyrrolidines and dihydroquinolines.
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Affiliation(s)
- Santosh J. Gharpure
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai – 400076
- India
| | - V. Prasath
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai – 400076
- India
| | - Vinod Kumar
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai – 400076
- India
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12
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Saikia AK, Indukuri K, Das J. Stereoselective synthesis of O-tosyl azabicyclic derivatives via aza Prins reaction of endocyclic N-acyliminium ions: application to the total synthesis of (±)-epi-indolizidine 167B and 209D. Org Biomol Chem 2014; 12:7026-35. [DOI: 10.1039/c4ob01130a] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A diastereoselective synthesis of 4-O-tosyl piperidine containing azabicyclic derivatives has been established via Prins cyclization reaction. This protocol has been applied for the total synthesis of (±)-epi-indolizidine 167B and 209D.
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Affiliation(s)
- Anil K. Saikia
- Department of Chemistry
- Indian Institute of Technology Guwahati
- Guwahati 781039, India
| | - Kiran Indukuri
- Department of Chemistry
- Indian Institute of Technology Guwahati
- Guwahati 781039, India
| | - Jagadish Das
- Department of Chemistry
- Indian Institute of Technology Guwahati
- Guwahati 781039, India
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13
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Wagh MB, Shankar R, Mini K, Krishnamohan T, Madhubabu MV, Pal AK, Jayaprakash S, Krishna T, Dahanukar V, Kumar UKS, Gill CH. Synthesis of β-Arylacyl/β-Heteroarylacyl-β-alkylidene Malonates and Their Application in Substituted Pyridone Synthesis. J Heterocycl Chem 2013. [DOI: 10.1002/jhet.991] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Manoj Balu Wagh
- Technology Development centre; Custom Pharmaceutical Services, Dr. Reddys Laboratories Ltd.; Miyapur; Hyderabad 500 049; India
| | - R. Shankar
- Technology Development centre; Custom Pharmaceutical Services, Dr. Reddys Laboratories Ltd.; Miyapur; Hyderabad 500 049; India
| | - K. Mini
- Technology Development centre; Custom Pharmaceutical Services, Dr. Reddys Laboratories Ltd.; Miyapur; Hyderabad 500 049; India
| | - T. Krishnamohan
- Technology Development centre; Custom Pharmaceutical Services, Dr. Reddys Laboratories Ltd.; Miyapur; Hyderabad 500 049; India
| | - M. V. Madhubabu
- Technology Development centre; Custom Pharmaceutical Services, Dr. Reddys Laboratories Ltd.; Miyapur; Hyderabad 500 049; India
| | - Abir K. Pal
- Technology Development centre; Custom Pharmaceutical Services, Dr. Reddys Laboratories Ltd.; Miyapur; Hyderabad 500 049; India
| | - Sarva Jayaprakash
- Technology Development centre; Custom Pharmaceutical Services, Dr. Reddys Laboratories Ltd.; Miyapur; Hyderabad 500 049; India
| | - T. Krishna
- Technology Development centre; Custom Pharmaceutical Services, Dr. Reddys Laboratories Ltd.; Miyapur; Hyderabad 500 049; India
| | - Vilas Dahanukar
- Technology Development centre; Custom Pharmaceutical Services, Dr. Reddys Laboratories Ltd.; Miyapur; Hyderabad 500 049; India
| | - U. K. Syam Kumar
- Technology Development centre; Custom Pharmaceutical Services, Dr. Reddys Laboratories Ltd.; Miyapur; Hyderabad 500 049; India
| | - C. H. Gill
- Department of Chemistry; Dr. Babasaheb Ambedkar University; Aurangabad; India
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14
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Liu J, Wang X, Guo H, Shi X, Ren X, Huang G. A novel NH4OAc and CuBr(PPh3)3-induced intermolecular Pummerer-type reaction between free (NH)-indoles and dimethylsulfoxide: facile synthesis of 3-methylthiomethyl substituted indoles. Tetrahedron 2012. [DOI: 10.1016/j.tet.2011.12.002] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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15
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Wu X, Fang H, Liu Q, Nie L, Chen J, Cao W, Zhao G. Diastereoselective cascade reactions toward substituted diazaindeno[2,1-α]phenanthrenes. Tetrahedron 2011. [DOI: 10.1016/j.tet.2011.07.050] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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16
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Chen Z, Ye C, Gao L, Wu J. Diversity-oriented approach to 1,2-dihydroisoquinolin-3(4H)-imines viacopper(i)-catalyzed reaction of (E)-2-ethynylphenylchalcone, sulfonyl azide and amine. Chem Commun (Camb) 2011; 47:5623-5. [DOI: 10.1039/c1cc11176k] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A three-component reaction of (E)-2-ethynylphenylchalcone, sulfonyl azide, and amine catalyzed by copper(i) chloride generates 1,2-dihydroisoquinolin-3(4H)-imines in good to excellent yields.
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Affiliation(s)
- Zhiyuan Chen
- Key Laboratory of Functional Small Organic Molecules
- Ministry of Education and College of Chemistry & Chemical Engineering
- Jiangxi Normal University
- Jiangxi 330022
- China
| | - Chao Ye
- Key Laboratory of Functional Small Organic Molecules
- Ministry of Education and College of Chemistry & Chemical Engineering
- Jiangxi Normal University
- Jiangxi 330022
- China
| | - Liang Gao
- Key Laboratory of Functional Small Organic Molecules
- Ministry of Education and College of Chemistry & Chemical Engineering
- Jiangxi Normal University
- Jiangxi 330022
- China
| | - Jie Wu
- Department of Chemistry
- Fudan University
- Shanghai 200433
- China
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Zubkov FI, Ershova JD, Zaytsev VP, Obushak MD, Matiychuk VS, Sokolova EA, Khrustalev VN, Varlamov AV. The first example of an intramolecular Diels–Alder furan (IMDAF) reaction of iminium salts and its application in a short and simple synthesis of the isoindolo[1,2-a]isoquinoline core of the jamtine and hirsutine alkaloids. Tetrahedron Lett 2010. [DOI: 10.1016/j.tetlet.2010.10.046] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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18
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Cabrera J, Hellmuth T, Peters R. Synthesis of Densely Substituted Trans-Configured 4-Acylated Piperidine-2,4-diones as 3:1 Adducts of Imines and Ketenes. J Org Chem 2010; 75:4326-9. [DOI: 10.1021/jo100709y] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- José Cabrera
- Institut für Organische Chemie, Universität Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany
| | - Tina Hellmuth
- Institut für Organische Chemie, Universität Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany
| | - René Peters
- Institut für Organische Chemie, Universität Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany
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20
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An expeditious total synthesis of (±)-jamtine using condensation between imine and acid anhydride. Tetrahedron Lett 2010. [DOI: 10.1016/j.tetlet.2009.10.091] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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21
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Tang Y, Fettinger JC, Shaw JT. One-Step Synthesis of Complex Nitrogen Heterocycles from Imines and Alkyl-Substituted Maleic Anhydrides. Org Lett 2009; 11:3802-5. [DOI: 10.1021/ol901018k] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yuchen Tang
- Department of Chemistry, University of California, One Shields Avenue, Davis, California 95616
| | - James C. Fettinger
- Department of Chemistry, University of California, One Shields Avenue, Davis, California 95616
| | - Jared T. Shaw
- Department of Chemistry, University of California, One Shields Avenue, Davis, California 95616
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22
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Kiren S, Hong X, Leverett CA, Padwa A. A facile synthesis of 5-alkoxypyrrol-2(5H)-ones using a modified aza-Achmatowicz oxidation. Tetrahedron 2009. [DOI: 10.1016/j.tet.2009.03.011] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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23
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Zubkov FI, Ershova JD, Orlova AA, Zaytsev VP, Nikitina EV, Peregudov AS, Gurbanov AV, Borisov RS, Khrustalev VN, Maharramov AM, Varlamov AV. A new approach to construction of isoindolo[1,2-a]isoquinoline alkaloids Nuevamine, Jamtine, and Hirsutine via IMDAF reaction. Tetrahedron 2009. [DOI: 10.1016/j.tet.2009.02.024] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Sharma A, Sharma N, Kumar R, Sharma UK, Sinha AK. Water-promoted cascade synthesis of α-arylaldehydes from arylalkenes using N-halosuccinimides: an avenue for asymmetric oxidation using Cinchona organocatalysis. Chem Commun (Camb) 2009:5299-301. [PMID: 19707652 DOI: 10.1039/b908717f] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Abhishek Sharma
- Natural Plant Products Division, Institute of Himalayan Bioresource Technology, CSIR, Palampur, 176061 (H.P.), India
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25
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Reaction of Perfluoroalkanesulfinyl Chlorides with Enamines: A Facile Synthesis ofα-Perfluoroalkanesulfinyl Ketones and Aldehydes. CHINESE J CHEM 2009. [DOI: 10.1002/cjoc.200990008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Abstract
Sequential transformations enable the facile synthesis of complex target molecules from simple building blocks in a single preparative step. Their value is amplified if they also create multiple stereogenic centers. In the ongoing search for new domino processes, emphasis is usually placed on sequential reactions which occur cleanly and without forming by-products. As a prerequisite for an ideally proceeding one-pot sequential transformation, the reactivity pattern of all participating components has to be such that each building block gets involved in a reaction only when it is supposed to do so. The development of sequences that combine transformations of fundamentally different mechanisms broadens the scope of such procedures in synthetic chemistry. This mini review contains a representative sampling from the last 15 years on the kinds of reactions that have been sequenced into cascades to produce heterocyclic molecules.
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Affiliation(s)
- Albert Padwa
- Department of Chemistry, Emory University, 1515 Dickey Drive, Atlanta, GA 30322
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27
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Acetyl Chloride-mediated Mild and Chemoselective Attachment and Removal of Tetrahydropyranyl (THP) Group. B KOREAN CHEM SOC 2007. [DOI: 10.5012/bkcs.2007.28.1.103] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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28
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Bur SK, Padwa A. The Synthesis of Heterocycles Using Cascade Chemistry. ADVANCES IN HETEROCYCLIC CHEMISTRY VOLUME 94 2007. [DOI: 10.1016/s0065-2725(06)94001-x] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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29
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30
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Abstract
The design and implementation of cascade reactions is a challenging facet of organic chemistry, yet one that can impart striking novelty, elegance, and efficiency to synthetic strategies. The application of cascade reactions to natural products synthesis represents a particularly demanding task, but the results can be both stunning and instructive. This Review highlights selected examples of cascade reactions in total synthesis, with particular emphasis on recent applications therein. The examples discussed herein illustrate the power of these processes in the construction of complex molecules and underscore their future potential in chemical synthesis.
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Affiliation(s)
- K C Nicolaou
- Department of Chemistry and The Skaggs Institute for Chemical Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA.
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31
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32
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33
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Bastida J, Lavilla R, Viladomat F. Chemical and biological aspects of Narcissus alkaloids. THE ALKALOIDS. CHEMISTRY AND BIOLOGY 2006; 63:87-179. [PMID: 17133715 PMCID: PMC7118783 DOI: 10.1016/s1099-4831(06)63003-4] [Citation(s) in RCA: 78] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
This chapter discusses the chemical and biological aspects of Narcissus alkaloids. Numerous alkaloids have been isolated from Narcissus speciesasaresult of the continuing search for novel alkaloids with pharmacological activity in the Amaryllidaceae family. The alkaloids isolated from this genus, classified in relation to the different skeleton types. The different Narcissus wild species and intersectional hybrids, grouped into subgenera and sections, with their corresponding alkaloids, arranged according to their ring system are listed. The biosynthetic pathways of Narcissus alkaloids includes: (1) enzymatic preparation of the precursors, (2) primary cyclization mechanisms, (3) enzymatic preparation of intermediates, (4) secondary cyclization, diversification, and restructuring. The chapter discusses proton nuclear magnetic resonance (1H NMR), carbon nuclear magnetic resonance (13C NMR), and mass spectrometry (MS) for Narcissus alkaloids. A list of the different Narcissus alkaloids, their spectroscopic properties, and literature with the most recent spectroscopic data is given. Several Narcissus extracts shows the following activities: antiviral, prophage induction, antibacterial, antifungal, antimalarial, insecticidal, cytotoxic, antitumor, antimitotic, antiplatelet, hypotensive, emetic, acetylcholine esterase inhibitory, antifertility, antinociceptive, chronotropic, pheromone, plant growth inhibitor, and allelopathic.
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Affiliation(s)
- Jaume Bastida
- Departament de Productes Naturals, Facultat de Farmàcia, Universitat de Barcelona, 08028 Barcelona, Spain
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34
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35
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Wang X, Migawa MT, Sannes-Lowery KA, Swayze EE. The synthesis and 16S A-site rRNA recognition of carbohydrate-free aminoglycosides. Bioorg Med Chem Lett 2005; 15:4919-22. [PMID: 16168642 DOI: 10.1016/j.bmcl.2005.08.027] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2005] [Revised: 08/08/2005] [Accepted: 08/09/2005] [Indexed: 11/24/2022]
Abstract
The first carbohydrate-free aminoglycoside analogs bearing the 2-deoxystreptamine moiety were synthesized from asymmetrically protected 2-deoxystrepamine and subsequently demonstrated to have significant binding to the 16S A-site rRNA target and moderate functional activity.
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Affiliation(s)
- Xiaojing Wang
- Ibis Therapeutics, A Division of Isis Pharmaceuticals, Inc., 2292 Faraday Avenue, Carlsbad, CA 92008, USA
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36
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Padwa A, Nara S, Wang Q. Dichloroketene-Induced Cyclizations of Vinyl Sulfilimines: Application of the Method in the Synthesis of (±)-Desoxyeseroline. J Org Chem 2005; 70:8538-49. [PMID: 16209605 DOI: 10.1021/jo051550o] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The reactions of several aryl-, furanyl-, and vinyl-substituted sulfilimines with dichloroketene proceeded at 25 degrees C to yield thioalkyl-substituted gamma-lactams. The overall process involves nucleophilic addition of the nitrogen atom of the sulfilimine onto the highly electrophilic dichloroketene to first generate a zwitterionic intermediate. A subsequent [3,3]-sigmatropic rearrangement is followed by intramolecular trapping of the Pummerer cation by the amido anion to furnish the observed gamma-lactam product. Incorporation of donor groups on the aromatic ring of the sulfonyl functionality had little effect when aryl-substituted sulfilimines were used but exhibited a major effect on the efficiency of the reaction with furanyl-substituted systems. The placement of an electron donor group (i.e., OMe) on the sulfonyl aryl group enhances the nucleophilicity of the amido anion contained within the sulfonium ion intermediate and facilitates the rate of the 3,3-sigmatropic rearrangement. Styryl-substituted sulfilimines cyclize in a stereospecific manner and produce a 3:2-mixture of gamma-lactams and the isomeric imino-lactone system. The heavily functionalized gamma-lactams are easily converted to a variety of nitrogen containing substrates. The vinyl sulfilimine cyclization method was applied to the total synthesis of the Calabar alkaloid (+/-)-desoxyeseroline.
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Affiliation(s)
- Albert Padwa
- Department of Chemistry, Emory University, Atlanta, Georgia 30322, USA.
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37
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Aziridination of γ,δ-dibromoethyl-2-pentenoate with primary amines: extension of the Gabriel–Cromwell reaction. Tetrahedron Lett 2004. [DOI: 10.1016/j.tetlet.2004.06.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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38
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Affiliation(s)
- Maria Chrzanowska
- Faculty of Chemistry, Adam Mickiewicz University, Grunwaldzka 6, 60-780 Poznań, Poland
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39
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Maryanoff BE, Zhang HC, Cohen JH, Turchi IJ, Maryanoff CA. Cyclizations of N-acyliminium ions. Chem Rev 2004; 104:1431-628. [PMID: 15008627 DOI: 10.1021/cr0306182] [Citation(s) in RCA: 551] [Impact Index Per Article: 27.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Bruce E Maryanoff
- Johnson & Johnson Pharmaceutical Research & Development, Spring House, Pennsylvania 19477-0776, USA.
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40
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Bur SK, Padwa A. The Pummerer Reaction: Methodology and Strategy for the Synthesis of Heterocyclic Compounds. Chem Rev 2004; 104:2401-32. [PMID: 15137795 DOI: 10.1021/cr020090l] [Citation(s) in RCA: 350] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Scott K Bur
- Gustavus Adolphus College, 800 West College Avenue, St. Peter, Minnesota 56082, USA
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41
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Paulvannan K. An Atom-Economical Approach to Conformationally Constrained Tricyclic Nitrogen Heterocycles via Sequential and Tandem Ugi/Intramolecular Diels−Alder Reaction of Pyrrole1,2. J Org Chem 2004; 69:1207-14. [PMID: 14961672 DOI: 10.1021/jo030231z] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An efficient approach to rigid tricyclic nitrogen heterocycles via sequential and tandem Ugi/intramolecular Diels-Alder (IMDA) cycloaddition of pyrrole is described. The one-pot Ugi four-component condensation (4CC) reaction was used as the key transformation to prepare trienes with a carboxamide substituent on the tether. The use of acrylic acid (21) and N-propyl- and N-benzylmaleamic acids (24b and 24C) as the acid components provided trienes 22, 25b, and 25c, respectively, which upon heating at 120 degrees C for 12 h yielded the corresponding [4 + 2] cycloaddition products. In the case of maleic acid derivative 24a, heating the reaction mixture at 60 degrees C for 6 h promoted the cycloaddition reaction and provided the desired product 26a in 78% yield. In contrast, fumaric acid monoethyl ester (27a) and 3-acetyl- and 3-(4-methylbenzoyl) acrylic acids (27b-c) directly yielded the corresponding Ugi/IMDA cycloaddition products 29a-c in high yields at room temperature without any trace of initially formed trienes 28a-c. The IMDA cycloaddition reactions proceed with excellent stereoselectivity with the formation of five stereogenic centers and three rings.
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Affiliation(s)
- K Paulvannan
- Affymax Research Institute, 3410 Central Expressway, Santa Clara, California 95051, USA.
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42
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Abstract
This review covers beta-phenylethylamines and isoquinoline alkaloids derived from them, including further products of oxidation. condensation with formaldehyde and rearrangement, some of which do not contain an isoquinoline system, together with naphthylisoquinoline alkaloids, which have a different biogenetic origin. The occurrence of the alkaloids, with the structures of new bases, together with their reactions, syntheses and biological activities are reported. The literature from July 2002 to June 2003 is reviewed, with 568 references cited.
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43
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Gill CD, Greenhalgh DA, Simpkins NS. Application of the chiral base desymmetrisation of imides to the synthesis of the alkaloid jamtine and the antidepressant paroxetine. Tetrahedron 2003. [DOI: 10.1016/j.tet.2003.08.046] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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44
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Abelman MM, Curtis JK, James DR. Architecturally diverse heterocycle formation by N-acyliminium ion initiated cyclization. Tetrahedron Lett 2003. [DOI: 10.1016/s0040-4039(03)01190-0] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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45
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Solé D, Diaba F, Bonjoch J. Nitrogen heterocycles by palladium-catalyzed cyclization of amino-tethered vinyl halides and ketone enolates. J Org Chem 2003; 68:5746-9. [PMID: 12839475 DOI: 10.1021/jo034299q] [Citation(s) in RCA: 61] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The scope and limitations of Pd(0)-catalyzed intramolecular coupling of amino-tethered vinyl halides and ketone enolates as a methodology for the synthesis of nitrogen heterocycles have been studied. This reaction constitutes a synthetic procedure to obtain bridged, condensed, and monocyclic nitrogen-containing compounds.
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Affiliation(s)
- Daniel Solé
- Laboratori de Química Orgànica, Facultat de Farmàcia, Universitat de Barcelona, Av. Joan XXIII s/n, 08028-Barcelona, Spain.
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46
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Simpkins NS, Gill CD. Asymmetric total synthesis of the proposed structure of the medicinal alkaloid jamtine using the chiral base approach. Org Lett 2003; 5:535-7. [PMID: 12583762 DOI: 10.1021/ol027447s] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
[reaction: see text] A highly step-economic asymmetric synthesis of the tetracyclic structure assigned to the medicinal alkaloid jamtine has been accomplished using a chiral lithium amide base desymmetrization of a ring-fused imide. The structure synthesized appears to be different from that of the natural product originally reported.
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Affiliation(s)
- Nigel S Simpkins
- School of Chemistry, University of Nottingham, Nottingham, United Kingdom.
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