1
|
Yang JS, Kim SG. Catalytic enantioselective [3+2] and [4+2]-annulation of cyclic N-sulfonyl ketimines with γ- or δ-hydroxy-α,β-unsaturated ketones. Chem Commun (Camb) 2024; 60:7954-7957. [PMID: 38988235 DOI: 10.1039/d4cc02734e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/12/2024]
Abstract
A highly efficient asymmetric [3+2] and [4+2]-annulation of cyclic N-sulfonyl ketimines with γ- or δ-hydroxy-α,β-unsaturated ketones has been developed. This innovative reaction employs an organocatalytic approach, utilizing a hydrogen-bonding bifunctional squaramide-based catalyst. The process enables precise synthesis of chiral polyheterotricyclic oxazolidines and 1,3-oxazinane derivatives, revealing intricate structures with incorporated chiral quaternary centers. Remarkably, this method delivers high yields and exceptional enantioselectivities and diastereoselectivities, achieving up to 99% yield, >20 : 1 dr, and >99% ee.
Collapse
Affiliation(s)
- Ji Seon Yang
- Department of Chemistry, College of Natural Science, Kyonggi University, 154-42, Gwanggyosan-ro, Yeongtong-gu, Suwon, 16227, Republic of Korea.
| | - Sung-Gon Kim
- Department of Chemistry, College of Natural Science, Kyonggi University, 154-42, Gwanggyosan-ro, Yeongtong-gu, Suwon, 16227, Republic of Korea.
| |
Collapse
|
2
|
Nayak MK, Chakraborty S, Mohanty A, Roy S. SnCl 2-catalyzed multicomponent coupling: synthesis of 1,3-oxazolidine derivatives using paraformaldehyde as a C1 feedstock. Org Biomol Chem 2024; 22:5768-5775. [PMID: 38920417 DOI: 10.1039/d4ob00791c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/27/2024]
Abstract
SnCl2 catalyzed the three-component coupling of aniline, epoxide, and paraformaldehyde, resulting in the synthesis of 1,3-oxazolidine derivatives. The reaction is simple and does not require any additives, bases, or oxidants, and proceeds at moderate temperature with good functional group tolerance. The scope of the utilization of paraformaldehyde as the methylene source was further extended to the synthesis of benzothiazole and 4,4'-methylenebis(N,N-dimethylaniline) using the same catalyst. A catalytic pathway was proposed based on the control experiments.
Collapse
Affiliation(s)
- Mukesh Kumar Nayak
- Organometallics & Catalysis Laboratory, School of Basic Sciences, Indian Institute of Technology Bhubaneswar, Arugul, Jatani, Khurda 752050, Odisha, India.
| | - Swati Chakraborty
- Organometallics & Catalysis Laboratory, School of Basic Sciences, Indian Institute of Technology Bhubaneswar, Arugul, Jatani, Khurda 752050, Odisha, India.
| | - Anuradha Mohanty
- Organometallics & Catalysis Laboratory, School of Basic Sciences, Indian Institute of Technology Bhubaneswar, Arugul, Jatani, Khurda 752050, Odisha, India.
| | - Sujit Roy
- Organometallics & Catalysis Laboratory, School of Basic Sciences, Indian Institute of Technology Bhubaneswar, Arugul, Jatani, Khurda 752050, Odisha, India.
| |
Collapse
|
3
|
Pal S, Das D, Bhunia S. p-Toluenesulfonic acid-promoted organic transformations for the generation of molecular complexity. Org Biomol Chem 2024; 22:1527-1579. [PMID: 38275082 DOI: 10.1039/d3ob01766d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2024]
Abstract
Since the beginning of this century, p-toluenesulfonic acid (p-TSA) catalysed organic transformations have been an active area of research for developing efficient synthetic methodologies. Often, catalysis using p-TSA is associated with many advantages, such as operational simplicity, high selectivity, excellent yields, and ease of product isolation, which make organic synthesis convenient and versatile. Notably, p-TSA is a non-toxic, commercially available, inexpensive solid organic compound that is soluble in water, alcohols, and other polar organic solvents. p-TSA is a strong acid compared to many protic or mineral acids and its high acidity helps activate different organic functional groups. p-TSA-promoted conversions are fast, have a high atom and pot economy, and feature a multiple bond-forming index. Therefore, the utilization of p-TSA enables the synthesis of many important structural scaffolds without any hazardous metals, making it desirable in numerous applications of sustainable and green chemistry. Recently, this emerging area of research has become one of the pillars of synthetic organic chemistry to synthesise biologically relevant, complex carbocycles and heterocycles. This study provides a comprehensive summary of methods, applications, and mechanistic insights into p-TSA-catalysed organic transformations, covering the literature reports that have appeared since 2012.
Collapse
Affiliation(s)
- Sanchari Pal
- Department of Chemistry, Triveni Devi Bhalotia College, Raniganj, India.
| | - Debjit Das
- Department of Chemistry, Triveni Devi Bhalotia College, Raniganj, India.
| | - Sabyasachi Bhunia
- Department of Chemistry, Central University of Jharkhand, Ranchi, Jharkhand, India.
| |
Collapse
|
4
|
Yang Y, Gao Y, Chen S, Guo J, Hu Y. Design, synthesis, and biological evaluation of simplified tetrahydroisoquinoline analogs. Arch Pharm (Weinheim) 2023; 356:e2300453. [PMID: 37814371 DOI: 10.1002/ardp.202300453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2023] [Revised: 09/02/2023] [Accepted: 09/12/2023] [Indexed: 10/11/2023]
Abstract
A series of tetrahydroisoquinoline derivatives were prepared and their antitumor activity was studied against several human carcinoma cell lines, including Ketr3, BEL-7402, BGC-823, KB, HCT-8, MCF-7, HeLa, A2780, A549, and HT-1080. Compound 20, an analog of phthalascidin 650, exhibited good broad-spectrum antitumor activity in vitro. However, compounds 19 and 21, in which the side chains at C-22 are simplified, showed no obvious antitumor activity, indicating that the C-22 side chain of this type of compound has a greater impact on its activity. The difference in the in vivo activity between compound 20 and phthalascidin 650 also shows a significant effect of the substituents on the skeleton structure on the in vivo activity.
Collapse
Affiliation(s)
- Yang Yang
- Key Laboratory of Green Chemical Engineering Process of Ministry of Education/Hubei Key Laboratory of Novel Reactor and Green Chemical Technology, Institution Wuhan Institute of Technology, Wuhan, China
| | - Yi Gao
- Key Laboratory of Green Chemical Engineering Process of Ministry of Education/Hubei Key Laboratory of Novel Reactor and Green Chemical Technology, Institution Wuhan Institute of Technology, Wuhan, China
| | - Siyu Chen
- Key Laboratory of Green Chemical Engineering Process of Ministry of Education/Hubei Key Laboratory of Novel Reactor and Green Chemical Technology, Institution Wuhan Institute of Technology, Wuhan, China
| | - Ju Guo
- Key Laboratory of Green Chemical Engineering Process of Ministry of Education/Hubei Key Laboratory of Novel Reactor and Green Chemical Technology, Institution Wuhan Institute of Technology, Wuhan, China
- Hubei key Laboratory of Wudang Local Chinese Medicine Research, Hubei University of Medicine, Shiyan, China
| | - Yanggen Hu
- Hubei key Laboratory of Wudang Local Chinese Medicine Research, Hubei University of Medicine, Shiyan, China
| |
Collapse
|
5
|
Stout CN, Wasfy NM, Chen F, Renata H. Charting the Evolution of Chemoenzymatic Strategies in the Syntheses of Complex Natural Products. J Am Chem Soc 2023; 145:18161-18181. [PMID: 37553092 PMCID: PMC11107883 DOI: 10.1021/jacs.3c03422] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/10/2023]
Abstract
Bolstered by recent advances in bioinformatics, genetics, and enzyme engineering, the field of chemoenzymatic synthesis has enjoyed a rapid increase in popularity and utility. This Perspective explores the integration of enzymes into multistep chemical syntheses, highlighting the unique potential of biocatalytic transformations to streamline the synthesis of complex natural products. In particular, we identify four primary conceptual approaches to chemoenzymatic synthesis and illustrate each with a number of landmark case studies. Future opportunities and challenges are also discussed.
Collapse
Affiliation(s)
- Carter N. Stout
- Skaggs Doctoral Program in the Chemical and Biological Sciences, Scripps Research, La Jolla, CA 92037, USA
| | - Nour M. Wasfy
- Department of Chemistry, BioScience Research Collaborative, Rice University, Houston, Texas, 77005, United States
| | - Fang Chen
- Department of Chemistry, BioScience Research Collaborative, Rice University, Houston, Texas, 77005, United States
| | - Hans Renata
- Department of Chemistry, BioScience Research Collaborative, Rice University, Houston, Texas, 77005, United States
| |
Collapse
|
6
|
Kim A, Ngamnithiporn A, Du E, Stoltz BM. Recent Advances in the Total Synthesis of the Tetrahydroisoquinoline Alkaloids (2002-2020). Chem Rev 2023; 123:9447-9496. [PMID: 37429001 PMCID: PMC10416225 DOI: 10.1021/acs.chemrev.3c00054] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2023] [Indexed: 07/12/2023]
Abstract
The tetrahydroisoquinoline (THIQ) natural products constitute one of the largest families of alkaloids and exhibit a wide range of structural diversity and biological activity. Ranging from simple THIQ natural products to complex trisTHIQ alkaloids such as the ecteinascidins, the chemical syntheses of these alkaloids and their analogs have been thoroughly investigated due to their intricate structural features and functionalities, as well as their high therapeutic potential. This review describes the general structure and biosynthesis of each family of THIQ alkaloids as well as recent advancements of the total synthesis of these natural products from 2002 to 2020. Recent chemical syntheses that have emerged harnessing novel, creative synthetic design, and modern chemical methodology will be highlighted. This review will hopefully serve as a guide for the unique strategies and tools used in the total synthesis of THIQ alkaloids, as well as address the longstanding challenges in their chemical and biosynthesis.
Collapse
Affiliation(s)
- Alexia
N. Kim
- The
Warren and Katharine Schlinger Laboratory for Chemistry and Chemical
Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Aurapat Ngamnithiporn
- Laboratory
of Medicinal Chemistry, Chulabhorn Research
Institute, 54 Kamphaeng
Phet 6 Road, Bangkok 10210, Thailand
| | - Emily Du
- The
Warren and Katharine Schlinger Laboratory for Chemistry and Chemical
Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Brian M. Stoltz
- The
Warren and Katharine Schlinger Laboratory for Chemistry and Chemical
Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| |
Collapse
|
7
|
Rahman I, Baruah B, Rajbongshi BK, Deb ML, Baruah PK. Catalyst‐/Additive‐Free One‐Pot Synthesis of Oxazolidines in Water via Regioselective and Stereoselective C−H Functionalization Approach. ChemistrySelect 2023. [DOI: 10.1002/slct.202300093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
Affiliation(s)
- Iftakur Rahman
- Department of Applied Sciences GUIST Gauhati University Guwahati 781014 Assam India
| | - Biswajita Baruah
- Department of Chemistry Pandu College Guwahati-781012 Assam India
| | | | - Mohit L. Deb
- Department of Applied Sciences GUIST Gauhati University Guwahati 781014 Assam India
| | - Pranjal K. Baruah
- Department of Applied Sciences GUIST Gauhati University Guwahati 781014 Assam India
| |
Collapse
|
8
|
Kim Y, Kim SY, Kim SG. Organocatalytic Asymmetric [3 + 2]-Annulations of γ-Sulfonamido/γ-Hydroxy-α,β-Unsaturated Ketones with Cyclic N-Sulfimines: Synthesis of Chiral Polyheterotricyclic Imidazolidines and Oxazolidines. J Org Chem 2023; 88:1113-1127. [PMID: 36580571 DOI: 10.1021/acs.joc.2c02634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The first organocatalytic asymmetric [3 + 2]-annulation of γ-sulfonamido-α,β-unsaturated ketones with cyclic N-sulfimines has been developed, and enantioenriched functionalized polyheterotricyclic imidazolidines were obtained in good yields and with excellent enantioselectivities. This approach was also extended to the asymmetric [3 + 2]-annulation of γ-hydroxy-α,β-unsaturated ketones, affording enantioenriched polyheterotricyclic oxazolidines. In addition, base-catalyzed [3 + 2]-annulations of γ-sulfonamido/γ-hydroxy-α,β-unsaturated ketones with cyclic N-sulfimines were re-investigated under mild reaction conditions for the synthesis of racemic polyheterotricyclic imidazolidines and oxazolidines with excellent diastereoselectivities.
Collapse
Affiliation(s)
- Yoseop Kim
- Department of Chemistry, College of Natural Science, Kyonggi University, 154-42 Gwanggyosan-ro, Yeongtong-gu, Suwon 16227, Republic of Korea
| | - Seung Yeon Kim
- Department of Chemistry, College of Natural Science, Kyonggi University, 154-42 Gwanggyosan-ro, Yeongtong-gu, Suwon 16227, Republic of Korea
| | - Sung-Gon Kim
- Department of Chemistry, College of Natural Science, Kyonggi University, 154-42 Gwanggyosan-ro, Yeongtong-gu, Suwon 16227, Republic of Korea
| |
Collapse
|
9
|
Huck CJ, Boyko YD, Sarlah D. Dearomative logic in natural product total synthesis. Nat Prod Rep 2022; 39:2231-2291. [PMID: 36173020 PMCID: PMC9772301 DOI: 10.1039/d2np00042c] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Covering: 2011 to 2022The natural world is a prolific source of some of the most interesting, rare, and complex molecules known, harnessing sophisticated biosynthetic machinery evolved over billions of years for their production. Many of these natural products represent high-value targets of total synthesis, either for their desirable biological activities or for their beautiful structures outright; yet, the high sp3-character often present in nature's molecules imparts significant topological complexity that pushes the limits of contemporary synthetic technology. Dearomatization is a foundational strategy for generating such intricacy from simple materials that has undergone considerable maturation in recent years. This review highlights the recent achievements in the field of dearomative methodology, with a focus on natural product total synthesis and retrosynthetic analysis. Disconnection guidelines and a three-phase dearomative logic are described, and a spotlight is given to nature's use of dearomatization in the biosynthesis of various classes of natural products. Synthetic studies from 2011 to 2021 are reviewed, and 425 references are cited.
Collapse
Affiliation(s)
| | - Yaroslav D. Boyko
- Department of Chemistry, University of Illinois, Urbana, IL 61801, USA
| | - David Sarlah
- Department of Chemistry, University of Illinois, Urbana, IL 61801, USA,Department of Chemistry, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
| |
Collapse
|
10
|
Kim YH, Kim DB, Youn SW. Simple Tandem Olefin Isomerization/Intramolecular Hydroamination of Alkenyl Amines with Various Allylic Tethers. J Org Chem 2022; 87:11919-11924. [PMID: 36001369 DOI: 10.1021/acs.joc.2c01640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A simple and efficient AgOTf-promoted tandem olefin isomerization/intramolecular hydroamination of 1,1-disubstituted alkenyl amines has been developed. This one-pot process represents a facile and attractive route for the synthesis of diverse 2-alkyl-substituted 1,3-X,N-heterocycles through chemo- and regioselective C(sp3)-N bond formation with atom economy. Advantages such as the operationally simple and practical procedure that uses a readily available catalyst under aerobic conditions, good to excellent chemical yields, the high functional group tolerance, the broad substrate scope, and high efficiency and selectivity are noteworthy.
Collapse
Affiliation(s)
- Young Ho Kim
- Center for New Directions in Organic Synthesis, Department of Chemistry and Research Institute for Natural Sciences, Hanyang University, Seoul 04763, Korea
| | - Dong Bin Kim
- Center for New Directions in Organic Synthesis, Department of Chemistry and Research Institute for Natural Sciences, Hanyang University, Seoul 04763, Korea
| | - So Won Youn
- Center for New Directions in Organic Synthesis, Department of Chemistry and Research Institute for Natural Sciences, Hanyang University, Seoul 04763, Korea
| |
Collapse
|
11
|
Kim YH, Kim DB, Jang SS, Youn SW. Pd-Catalyzed Regioselective Intramolecular Allylic C-H Amination of 1,1-Disubstituted Alkenyl Amines. J Org Chem 2022; 87:7574-7580. [PMID: 35549260 DOI: 10.1021/acs.joc.2c00781] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Pd-Catalyzed intramolecular allylic C-H amination of 1,1-disubstituted alkenyl amines with various allylic tethers (X = O, NMs, CH2) was developed. This process allows for the divergent synthesis of 1,3-X,N-heterocycles through a regioselective allylic C-H cleavage and π-allylpalladium formation. Particularly noteworthy is the use of substrates containing a labile allylic moiety and new simple catalytic systems capable of promoting highly chemo- and regioselective allylic C-H amination by overcoming significant challenges.
Collapse
Affiliation(s)
- Young Ho Kim
- Center for New Directions in Organic Synthesis, Department of Chemistry and Research Institute for Natural Sciences, Hanyang University, Seoul 04763, Korea
| | - Dong Bin Kim
- Center for New Directions in Organic Synthesis, Department of Chemistry and Research Institute for Natural Sciences, Hanyang University, Seoul 04763, Korea
| | - Su San Jang
- Center for New Directions in Organic Synthesis, Department of Chemistry and Research Institute for Natural Sciences, Hanyang University, Seoul 04763, Korea
| | - So Won Youn
- Center for New Directions in Organic Synthesis, Department of Chemistry and Research Institute for Natural Sciences, Hanyang University, Seoul 04763, Korea
| |
Collapse
|
12
|
Singh MK, Lakshman MK. Recent developments in the utility of saturated azaheterocycles in peptidomimetics. Org Biomol Chem 2022; 20:963-979. [PMID: 35018952 DOI: 10.1039/d1ob01329g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
To a large extent, the physical and chemical properties of peptidomimetic molecules are dictated by the integrated heterocyclic scaffolds they contain. Heterocyclic moieties are introduced into a majority of peptide-mimicking molecules to modulate conformational flexibility, improve bioavailability, and fine-tune electronics, and in order to achieve potency similar to or better than that of the natural peptide ligand. This mini-review delineates recent developments, limited to the past five years, in the utility of selected saturated 3- to 6-membered heterocyclic moieties in peptidomimetic design. Also discussed is the chemistry involved in the synthesis of the azaheterocyclic scaffolds and the structural implications of the introduction of these azaheterocycles in peptide backbones as well as side chains of the peptide mimics.
Collapse
Affiliation(s)
- Manish K Singh
- Department of Science, Technology, and Mathematics, Lincoln University, 820 Chestnut Street, Jefferson City, Missouri 65101, USA.
| | - Mahesh K Lakshman
- Department of Chemistry and Biochemistry, The City College of New York, 160 Convent Avenue, New York, New York 10031, USA.,The Ph.D. Program in Chemistry, The Graduate Center of the City University of New York, New York, NY 10016, USA
| |
Collapse
|
13
|
Li J, Yang Q, Zhang Z, Zeng G, Liu T, Huang C. Highly Selective Synthesis of ( Z)- N-vinyl Ring N, O-Acetal Derivatives by Multi-component Continuous Flow. ACTA CHIMICA SINICA 2022. [DOI: 10.6023/a22100415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
|
14
|
Shabani S, Wu Y, Ryan HG, Hutton CA. Progress and perspectives on directing group-assisted palladium-catalysed C-H functionalisation of amino acids and peptides. Chem Soc Rev 2021; 50:9278-9343. [PMID: 34254063 DOI: 10.1039/d0cs01441a] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Peptide modifications can unlock a variety of compounds with structural diversity and abundant biological activity. In nature, peptide modifications, such as functionalisation at the side-chain position of amino acids, are performed using post-translational modification enzymes or incorporation of unnatural amino acids. However, accessing these modifications remains a challenge for organic chemists. During the past decades, selective C-H activation/functionalisation has attracted considerable attention in synthetic organic chemistry as a pathway to peptide modification. Various directing group strategies have been discovered that assist selective C-H activation. In particular, bidentate directing groups that enable tuneable and reversible coordination are now recognised as one of the most efficient methods for the site-selective C-H activation and functionalisation of numerous families of organic compounds. Synthetic peptide chemists have harnessed bidentate directing group strategies for selective functionalisation of the β- and γ-positions of amino acids. This method has been expanded and recognised as an effective device for the late stage macrocyclisation and total synthesis of complex peptide natural products. In this review, we discuss various β-, γ-, and δ-C(sp3)-H bond functionalisation reactions of amino acids for the formation of C-X bonds with the aid of directing groups and their application in late-stage macrocyclisation and the total synthesis of complex peptide natural products.
Collapse
Affiliation(s)
- Sadegh Shabani
- School of Chemistry and Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Victoria, 3010, Australia.
| | | | | | | |
Collapse
|
15
|
Qi WY, Fang SL, Xu XT, Zhang K, Shi BF. Asymmetric formal synthesis of (−)-tetrazomine. Org Chem Front 2021. [DOI: 10.1039/d1qo00029b] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The asymmetric formal synthesis of (−)-tetrazomine, a structurally unique member of the tetrahydroisoquinoline alkaloids, is presented.
Collapse
Affiliation(s)
- Wei-Yi Qi
- School of Biotechnology and Health Sciences
- Wuyi University
- Jiangmen
- China
- International Healthcare Innovation Institute(Jiangmen)
| | - Sheng-Long Fang
- Department of Chemistry
- Zhejiang University
- Hangzhou
- 310027 China
| | - Xue-Tao Xu
- School of Biotechnology and Health Sciences
- Wuyi University
- Jiangmen
- China
- International Healthcare Innovation Institute(Jiangmen)
| | - Kun Zhang
- School of Biotechnology and Health Sciences
- Wuyi University
- Jiangmen
- China
- International Healthcare Innovation Institute(Jiangmen)
| | - Bing-Feng Shi
- Department of Chemistry
- Zhejiang University
- Hangzhou
- 310027 China
| |
Collapse
|
16
|
Claraz A, Djian A, Masson G. Electrochemical tandem trifluoromethylation of allylamines/formal (3 + 2)-cycloaddition for the rapid access to CF3-containing imidazolines and oxazolidines. Org Chem Front 2021. [DOI: 10.1039/d0qo01307b] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A straightforward and environmentally friendly synthesis of CF3-containing imidazolines and oxazolidines has been developed through an electrochemical three-component reaction among allylamines, the Langlois reagent, and nitrile or carbonyl compounds.
Collapse
Affiliation(s)
- Aurélie Claraz
- Institut de Chimie des Substances Naturelles
- Université Paris Saclay
- CNRS
- UPR2301
- 91198 Gif-sur-Yvette cedex
| | - Aurélie Djian
- Institut de Chimie des Substances Naturelles
- Université Paris Saclay
- CNRS
- UPR2301
- 91198 Gif-sur-Yvette cedex
| | - Géraldine Masson
- Institut de Chimie des Substances Naturelles
- Université Paris Saclay
- CNRS
- UPR2301
- 91198 Gif-sur-Yvette cedex
| |
Collapse
|
17
|
Lu F, Chen J, Ye H, Wu H, Sha F, Huang F, Cao F, Wei P. Enzymatic hydroxylation of L-pipecolic acid by L-proline cis-4-hydroxylases and isomers separation. Biotechnol Lett 2020; 42:2607-2617. [PMID: 32914260 DOI: 10.1007/s10529-020-03002-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Accepted: 09/06/2020] [Indexed: 01/19/2023]
Abstract
OBJECTIVES Establish a complete and efficient method for the preparation of cis-5-hydroxy-L-pipecolic acids (cis-5HPA), including biotransformation and isomers separation and purification. RESULTS For non-heme Fe(II)/α-KG-dependent dioxygenases, α-ketoglutarate (α-KG) has great influence on the stability of Fe(II) ions, which is also the basic of the hydroxylation reaction to the substrate. L-pipecolic acids (L-Pip) was converted to cis-5HPA by whole-cell catalysis in water, which can reduce the loss of Fe(II) ions. 120 mM L-Pip can be transformed to 93% via cell and Fe(II) ions continuous supplementation under the reaction system optimization (the molar ratio of ascorbic acid/FeSO4·7H2O and α-KG/L-Pip were 8:1 and 1:1, respectively). After the catalytic reaction, the amino protection strategy was adopted to improve the resolution of isomer products on silica gel chromatography, and the amino protected cis-5HPA was obtained with a yield of 86.7%. CONCLUSIONS We established a method which is promising to be used for cis-5HPA largescale preparation. It also provides a suitable reference for this type of enzyme-catalyzed reaction and the hydroxy pipecolic acid isomers separation.
Collapse
Affiliation(s)
- Fan Lu
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, 30 South Puzhu Road, Nanjing, 211816, People's Republic of China
| | - Jiao Chen
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, 30 South Puzhu Road, Nanjing, 211816, People's Republic of China
| | - Hai Ye
- Nanjing Heron Pharmaceutical Science and Technology Co., Ltd, Life Science and Technology Town, Jiangning District, Nanjing, 211000, People's Republic of China
| | - Hongli Wu
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, 30 South Puzhu Road, Nanjing, 211816, People's Republic of China.
| | - Feng Sha
- School of Chemical Biology & Biotechnology, Shenzhen Graduate School, Peking University, Nanshan District, Shenzhen, 518055, People's Republic of China
| | - Fujun Huang
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, 30 South Puzhu Road, Nanjing, 211816, People's Republic of China
| | - Fei Cao
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, 30 South Puzhu Road, Nanjing, 211816, People's Republic of China.
| | - Ping Wei
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, 30 South Puzhu Road, Nanjing, 211816, People's Republic of China
| |
Collapse
|
18
|
Tarannum S, Sk S, Das S, Wani IA, Ghorai MK. Stereoselective Syntheses of Highly Functionalized Imidazolidines and Oxazolidines via Ring-Opening Cyclization of Activated Aziridines and Epoxides with Amines and Aldehydes. J Org Chem 2020; 85:367-379. [PMID: 31782305 DOI: 10.1021/acs.joc.9b02278] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A mild one-pot stereospecific synthetic route to highly functionalized imidazolidines and oxazolidines via SN2-type ring-opening of the corresponding activated aziridines and epoxides with amines followed by p-toluenesulfonic acid (PTSA)-catalyzed intramolecular cyclization with aldehydes has been developed. The methodology tolerates a variety of functional groups and furnishes the desired products in high yields (up to 92%) with excellent stereoselectivities (de, ee > 99%). Interestingly, imidazolidines were formed as the cis-isomers, whereas oxazolidines were produced as trans-isomers exclusively.
Collapse
Affiliation(s)
- Saima Tarannum
- Department of Chemistry , Indian Institute of Technology , 208016 Kanpur , Uttar Pradesh , India
| | - Sahid Sk
- Department of Chemistry , Indian Institute of Technology , 208016 Kanpur , Uttar Pradesh , India
| | - Subhomoy Das
- Department of Chemistry , Indian Institute of Technology , 208016 Kanpur , Uttar Pradesh , India
| | - Imtiyaz Ahmad Wani
- Department of Chemistry , Indian Institute of Technology , 208016 Kanpur , Uttar Pradesh , India
| | - Manas K Ghorai
- Department of Chemistry , Indian Institute of Technology , 208016 Kanpur , Uttar Pradesh , India
| |
Collapse
|
19
|
Yang S, Chen Y, Yuan Z, Bu F, Jiang C, Ding Z. Divergent synthesis of oxazolidines and morpholines via PhI(OAc)2-mediated difunctionalization of alkenes. Org Biomol Chem 2020; 18:9873-9882. [DOI: 10.1039/d0ob01987a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein we describe the PhI(OAc)2-mediated 1,1- and 1,2-difunctionalization of alkenes with N-tosyl amino alcohols to form oxazolidine and morpholine derivatives.
Collapse
Affiliation(s)
- Shuang Yang
- Jiangsu Key Laboratory of Drug Design and Optimization
- Department of Medicinal Chemistry
- School of Pharmacy
- China Pharmaceutical University
- Nanjing 211198
| | - Yuhang Chen
- Jiangsu Key Laboratory of Drug Design and Optimization
- Department of Medicinal Chemistry
- School of Pharmacy
- China Pharmaceutical University
- Nanjing 211198
| | - Zidan Yuan
- Jiangsu Key Laboratory of Drug Design and Optimization
- Department of Medicinal Chemistry
- School of Pharmacy
- China Pharmaceutical University
- Nanjing 211198
| | - Feiyu Bu
- Jiangsu Key Laboratory of Drug Design and Optimization
- Department of Medicinal Chemistry
- School of Pharmacy
- China Pharmaceutical University
- Nanjing 211198
| | - Cheng Jiang
- Jiangsu Key Laboratory of Drug Design and Optimization
- Department of Medicinal Chemistry
- School of Pharmacy
- China Pharmaceutical University
- Nanjing 211198
| | - Zhenhua Ding
- Jiangsu Key Laboratory of Drug Design and Optimization
- Department of Medicinal Chemistry
- School of Pharmacy
- China Pharmaceutical University
- Nanjing 211198
| |
Collapse
|
20
|
Zhang X, Qiu W, Evans J, Kaur M, Jasinski JP, Zhang W. Double 1,3-Dipolar Cycloadditions of Two Nonstabilized Azomethine Ylides for Polycyclic Pyrrolidines. Org Lett 2019; 21:2176-2179. [PMID: 30883128 DOI: 10.1021/acs.orglett.9b00487] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Nonstabilized azomethine ylides derived from decarboxylation of oxazolidin-5-ones were used for double 1,3-dipolar cycloadditions in diastereoselective synthesis of pyrrolidine-containing tetracyclic compounds. This is the first example of one-pot and five-component reactions involving two nonstabilized azomethine ylides. Only CO2 and water were generated as byproducts.
Collapse
Affiliation(s)
- Xiaofeng Zhang
- Center for Green Chemistry and Department of Chemistry , University of Massachusetts Boston , 100 Morrissey Boulevard , Boston , Massachusetts 02125 , United States
| | - Weiqi Qiu
- Center for Green Chemistry and Department of Chemistry , University of Massachusetts Boston , 100 Morrissey Boulevard , Boston , Massachusetts 02125 , United States
| | - Jason Evans
- Center for Green Chemistry and Department of Chemistry , University of Massachusetts Boston , 100 Morrissey Boulevard , Boston , Massachusetts 02125 , United States
| | - Manpreet Kaur
- Department of Chemistry , Keene State College , 229 Main Street , Keene , New Hampshire 03435 , United States
| | - Jerry P Jasinski
- Department of Chemistry , Keene State College , 229 Main Street , Keene , New Hampshire 03435 , United States
| | - Wei Zhang
- Center for Green Chemistry and Department of Chemistry , University of Massachusetts Boston , 100 Morrissey Boulevard , Boston , Massachusetts 02125 , United States
| |
Collapse
|
21
|
Feng H, Zhang Y, Zhang Z, Chen F, Huang L. Copper-Catalyzed Annulation/A3
-Coupling Cascade: Diastereodivergent Synthesis of Sterically Hindered Monocyclic Oxazolidines Bearing Multiple Stereocenters. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900031] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Huangdi Feng
- College of Chemistry and Chemical Engineering; Shanghai University of Engineering Science; 333 Longteng Road 201620 Shanghai China
| | - Yazhen Zhang
- College of Chemistry and Chemical Engineering; Shanghai University of Engineering Science; 333 Longteng Road 201620 Shanghai China
| | - Zedi Zhang
- College of Chemistry and Chemical Engineering; Shanghai University of Engineering Science; 333 Longteng Road 201620 Shanghai China
| | - Fubei Chen
- College of Chemistry and Chemical Engineering; Shanghai University of Engineering Science; 333 Longteng Road 201620 Shanghai China
| | - Liliang Huang
- College of Chemistry and Chemical Engineering; Shanghai University of Engineering Science; 333 Longteng Road 201620 Shanghai China
| |
Collapse
|
22
|
Akhmetov V, Feofanov M, Ioutsi V, Hampel F, Amsharov K. Unusual Fusion of α-Fluorinated Benzophenones under McMurry Reaction Conditions. Chemistry 2019; 25:1910-1913. [PMID: 30474898 DOI: 10.1002/chem.201805290] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Revised: 11/24/2018] [Indexed: 01/14/2023]
Abstract
By exposure of α-fluorinated benzophenones to McMurry reaction conditions, we have observed the remarkable formation of 9,10-diphenylanthracene derivatives. This unexpected transformation necessitates the cleavage of the exceptionally stable aromatic C-F bond under mild McMurry conditions. In this work, the condensation of several related fluorinated benzo- and acetophenones has been investigated, which allow us to propose a domino-like fusion mechanism for this unusual transformation. The scope and limitations of the fluorine-promoted benzophenone fusion are subsequently discussed.
Collapse
Affiliation(s)
- Vladimir Akhmetov
- Department of Chemistry and Pharmacy, Organic Chemistry II, Friedrich-Alexander University Erlangen-Nuernberg, Nikolaus-Fiebiger Str. 10, 91058, Erlangen, Germany
| | - Mikhail Feofanov
- Department of Chemistry and Pharmacy, Organic Chemistry II, Friedrich-Alexander University Erlangen-Nuernberg, Nikolaus-Fiebiger Str. 10, 91058, Erlangen, Germany
| | - Vitaliy Ioutsi
- Endocrinology Research Centre, 117036, Moscow, Dmitriya Ul'yanova str. 11, Russia
| | - Frank Hampel
- Department of Chemistry and Pharmacy, Organic Chemistry II, Friedrich-Alexander University Erlangen-Nuernberg, Nikolaus-Fiebiger Str. 10, 91058, Erlangen, Germany
| | - Konstantin Amsharov
- Department of Chemistry and Pharmacy, Organic Chemistry II, Friedrich-Alexander University Erlangen-Nuernberg, Nikolaus-Fiebiger Str. 10, 91058, Erlangen, Germany
| |
Collapse
|
23
|
Singh N, Dar AA, Kumar A. A Simple and Efficient Approach for the Synthesis of 1,3-Oxazolidines from β-Amino Alcohols Using Grinding Technique. ChemistrySelect 2018. [DOI: 10.1002/slct.201802369] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Nasseb Singh
- Synthetic Organic Chemistry Laboratory; Faculty of Sciences; Shri Mata Vaishno Devi University Katra; Jammu and Kashmir - 182320 India
| | - Alamgir A. Dar
- Bioorganic Chemistry Division; CSIR-Indian Institute of Integrative Medicine; Canal Road, Jammu Tawi, J & K 180 001 India
- Research Centre for Residue and Quality Analysis; Sher-e-Kashmir University of Agricultural Sciences & Technology Kashmir; Srinagar - 190025, J & K India
| | - Anil Kumar
- Synthetic Organic Chemistry Laboratory; Faculty of Sciences; Shri Mata Vaishno Devi University Katra; Jammu and Kashmir - 182320 India
| |
Collapse
|
24
|
Tang S, Zhang X, Sun J, Niu D, Chruma JJ. 2-Azaallyl Anions, 2-Azaallyl Cations, 2-Azaallyl Radicals, and Azomethine Ylides. Chem Rev 2018; 118:10393-10457. [PMID: 30302999 DOI: 10.1021/acs.chemrev.8b00349] [Citation(s) in RCA: 164] [Impact Index Per Article: 27.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
This review covers the use of 2-azaallyl anions, 2-azaallyl cations, and 2-azaallyl radicals in organic synthesis up through June 2018. Particular attention is paid to both foundational studies and recent advances over the past decade involving semistabilized and nonstabilized 2-azaallyl anions as key intermediates in various carbon-carbon and carbon-heteroatom bond-forming processes. Both transition-metal-catalyzed and transition-metal-free transformations are covered. Azomethine ylides, which have received significant attention elsewhere, are discussed briefly with the primary focus on critical comparisons with 2-azaallyl anions in regard to generation and use.
Collapse
Affiliation(s)
- Shaojian Tang
- Key Laboratory of Green Chemistry & Technology (MOE), College of Chemistry, Sino-British Materials Research Institute, College of Physical Sciences & Technology, and State Key Laboratory of Biotherapy, West China Hospital , Sichuan University , Chengdu , Sichuan 610064 , People's Republic of China
| | - Xia Zhang
- Key Laboratory of Green Chemistry & Technology (MOE), College of Chemistry, Sino-British Materials Research Institute, College of Physical Sciences & Technology, and State Key Laboratory of Biotherapy, West China Hospital , Sichuan University , Chengdu , Sichuan 610064 , People's Republic of China
| | - Jiayue Sun
- Key Laboratory of Green Chemistry & Technology (MOE), College of Chemistry, Sino-British Materials Research Institute, College of Physical Sciences & Technology, and State Key Laboratory of Biotherapy, West China Hospital , Sichuan University , Chengdu , Sichuan 610064 , People's Republic of China
| | - Dawen Niu
- Key Laboratory of Green Chemistry & Technology (MOE), College of Chemistry, Sino-British Materials Research Institute, College of Physical Sciences & Technology, and State Key Laboratory of Biotherapy, West China Hospital , Sichuan University , Chengdu , Sichuan 610064 , People's Republic of China
| | - Jason J Chruma
- Key Laboratory of Green Chemistry & Technology (MOE), College of Chemistry, Sino-British Materials Research Institute, College of Physical Sciences & Technology, and State Key Laboratory of Biotherapy, West China Hospital , Sichuan University , Chengdu , Sichuan 610064 , People's Republic of China
| |
Collapse
|
25
|
Chakraborty Ghosal N, De A, Mahato S, Santra S, V. Zyryanov G, Majee A. An Efficient Synthesis of Oxazolidines by Tandem Ring-Opening / Closing Reaction of Ts-Aziridine Using Formic Acid. ChemistrySelect 2018. [DOI: 10.1002/slct.201802657] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
| | - Aramita De
- Department of Chemistry; Visva-Bharati (A Central University), Santiniketan; 731235 India
| | - Sachinta Mahato
- Department of Chemistry; Visva-Bharati (A Central University), Santiniketan; 731235 India
| | - Sougata Santra
- Department of Organic and Biomolecular Chemistry; Chemical Engineering Institute; Ural Federal University; 19 Mira Street 620002 Yekaterinburg Russian Federation
| | - Grigory V. Zyryanov
- Department of Organic and Biomolecular Chemistry; Chemical Engineering Institute; Ural Federal University; 19 Mira Street 620002 Yekaterinburg Russian Federation
- I. Ya. Postovskiy Institute of Organic Synthesis; Ural Division of the Russian Academy of Sciences; 22 S. Kovalevskoy Street 620219 Yekaterinburg Russian Federation
| | - Adinath Majee
- Department of Chemistry; Visva-Bharati (A Central University), Santiniketan; 731235 India
| |
Collapse
|
26
|
Kondoh A, Akahira S, Oishi M, Terada M. Enantioselective Formal [3+2] Cycloaddition of Epoxides with Imines under Brønsted Base Catalysis: Synthesis of 1,3‐Oxazolidines with Quaternary Stereogenic Center. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201802468] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Azusa Kondoh
- Research and Analytical Center for Giant Molecules Graduate School of Science Tohoku University Aramaki, Aoba-ku Sendai 980-8578 Japan
| | - Shiori Akahira
- Department of Chemistry Graduate School of Science Tohoku University Aramaki, Aoba-ku Sendai 980-8578 Japan
| | - Masafumi Oishi
- Department of Chemistry Graduate School of Science Tohoku University Aramaki, Aoba-ku Sendai 980-8578 Japan
| | - Masahiro Terada
- Department of Chemistry Graduate School of Science Tohoku University Aramaki, Aoba-ku Sendai 980-8578 Japan
| |
Collapse
|
27
|
Kondoh A, Akahira S, Oishi M, Terada M. Enantioselective Formal [3+2] Cycloaddition of Epoxides with Imines under Brønsted Base Catalysis: Synthesis of 1,3‐Oxazolidines with Quaternary Stereogenic Center. Angew Chem Int Ed Engl 2018; 57:6299-6303. [DOI: 10.1002/anie.201802468] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Revised: 04/04/2018] [Indexed: 11/06/2022]
Affiliation(s)
- Azusa Kondoh
- Research and Analytical Center for Giant Molecules Graduate School of Science Tohoku University Aramaki, Aoba-ku Sendai 980-8578 Japan
| | - Shiori Akahira
- Department of Chemistry Graduate School of Science Tohoku University Aramaki, Aoba-ku Sendai 980-8578 Japan
| | - Masafumi Oishi
- Department of Chemistry Graduate School of Science Tohoku University Aramaki, Aoba-ku Sendai 980-8578 Japan
| | - Masahiro Terada
- Department of Chemistry Graduate School of Science Tohoku University Aramaki, Aoba-ku Sendai 980-8578 Japan
| |
Collapse
|
28
|
Basavaiah D, Thamizharasi P. Baylis-Hillman Reaction: In Situ Generated Isoquinolinium Species as Excellent Electrophiles for Coupling with Alkyl Acrylates and Acrylonitrile. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700743] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Deevi Basavaiah
- School of Chemistry; University of Hyderabad; 500046 Hyderabad India
| | | |
Collapse
|
29
|
Satheesh V, Sengoden M, Punniyamurthy T. “On Water” C(sp3)–H Functionalization/C–O/C–N Bonds Formations: Synthesis of Functionalized Oxazolidines and Imidazolidines. J Org Chem 2016; 81:9792-9801. [DOI: 10.1021/acs.joc.6b01850] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Vanaparthi Satheesh
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India
| | - Mani Sengoden
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India
| | | |
Collapse
|
30
|
Conversion of aziridines to oxazolidines through geminal difunctionalization of vinyl arenes or by tandem ring-opening/closing reaction of aziridine itself. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.06.119] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
|
31
|
Mailyan AK, Eickhoff JA, Minakova AS, Gu Z, Lu P, Zakarian A. Cutting-Edge and Time-Honored Strategies for Stereoselective Construction of C–N Bonds in Total Synthesis. Chem Rev 2016; 116:4441-557. [DOI: 10.1021/acs.chemrev.5b00712] [Citation(s) in RCA: 111] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Artur K. Mailyan
- Department
of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
| | - John A. Eickhoff
- Department
of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
| | - Anastasiia S. Minakova
- Department
of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
| | - Zhenhua Gu
- Department
of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, China
| | - Ping Lu
- Department
of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
| | - Armen Zakarian
- Department
of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
| |
Collapse
|
32
|
Dhanasekaran S, Suneja A, Bisai V, Singh VK. Approach to Isoindolinones, Isoquinolinones, and THIQs via Lewis Acid-Catalyzed Domino Strecker-Lactamization/Alkylations. Org Lett 2016; 18:634-7. [DOI: 10.1021/acs.orglett.5b03331] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
| | - Arun Suneja
- Department
of Chemistry, Indian Institute of Science Education and Research, Bhopal, MP - 462 066, India
| | - Vishnumaya Bisai
- Department
of Chemistry, Indian Institute of Science Education and Research, Bhopal, MP - 462 066, India
| | - Vinod K. Singh
- Department
of Chemistry, Indian Institute of Science Education and Research, Bhopal, MP - 462 066, India
- Department
of Chemistry, Indian Institute of Technology, Kanpur, UP - 208 016, India
| |
Collapse
|
33
|
Pandey AK, Banerjee P. One-Pot Synthesis of Oxazolidine Derivatives by [3+2]-Annulation Reactions of 1-Tosyl-2-phenyl/alkylaziridines with Aryl Epoxides. ASIAN J ORG CHEM 2016. [DOI: 10.1002/ajoc.201500438] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Ashok Kumar Pandey
- Department of Chemistry; Indian Institute of Technology Ropar; Nangal Road, Rupnagar Punjab- 140001 India
| | - Prabal Banerjee
- Department of Chemistry; Indian Institute of Technology Ropar; Nangal Road, Rupnagar Punjab- 140001 India
| |
Collapse
|
34
|
Anderson BK, Livinghouse T. Divergent Stereocontrolled Synthesis of the Enantiopure Tetracyclic Cores of Asparagamine A and Stemofoline via an Intramolecular 2-Propylidine-1,3-(bis)silane Bicyclization. J Org Chem 2015; 80:9847-55. [PMID: 26360508 DOI: 10.1021/acs.joc.5b01625] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A concise and highly diastereoselective synthesis of the polyfused tetracyclic cores of the Stemona alkaloids asparagamine A and stemofoline that relies on a 2-propylidine-1,3-(bis)silane bicyclization onto a enantiodefined pyrrolidine 2,5-di(cation) equivalent derived from l-malic acid is reported. A crucial feature of this divergent synthetic approach involves the solvolysis of a transient and highly labile tertiary-propargylic hydroxylactam trifluoroacetate in the strongly ionizing medium 5 M LiClO4/Et2O. The acyliminium ion generated in this manner undergoes stereospecific interception by the aforementioned (bis)silane nucleophile.
Collapse
Affiliation(s)
- Bryon K Anderson
- Department of Chemistry and Biochemistry, Montana State University , Bozeman, Montana 59717, United States
| | - Tom Livinghouse
- Department of Chemistry and Biochemistry, Montana State University , Bozeman, Montana 59717, United States
| |
Collapse
|
35
|
Kondoh A, Odaira K, Terada M. Ring expansion of epoxides under Brønsted base catalysis: formal [3+2] cycloaddition of β,γ-epoxy esters with imines providing 2,4,5-trisubstituted 1,3-oxazolidines. Angew Chem Int Ed Engl 2015; 54:11240-4. [PMID: 26352032 DOI: 10.1002/anie.201505893] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2015] [Revised: 07/17/2015] [Indexed: 11/07/2022]
Abstract
A novel ring-expansion reaction of epoxides under Brønsted base catalysis was developed. The formal [3+2] cycloaddition reaction of β,γ-epoxy esters with imines proceeds in the presence of triazabicyclodecene (TBD) as a superior Brønsted base catalyst to afford 2,4,5-trisubstituted 1,3-oxazolidines in a highly diastereoselective manner. This reaction involves the ring opening of the epoxides with the aid of the Brønsted base catalyst to generate α,β-unsaturated esters having an alkoxide at the allylic position, which would formally serve as a synthetic equivalent of the 1,3-dipole, followed by a cycloaddition reaction with imines in a stepwise fashion. This methodology enables the facile synthesis of enantioenriched 1,3-oxazolidines from easily accessible enantioenriched epoxides.
Collapse
Affiliation(s)
- Azusa Kondoh
- Research and Analytical Center for Giant Molecules, Graduate School of Science, Tohoku University, Aramaki, Aoba-ku, Sendai 980-8578 (Japan)
| | - Kenta Odaira
- Department of Chemistry, Graduate School of Science, Tohoku University, Aramaki, Aoba-ku, Sendai 980-8578 (Japan)
| | - Masahiro Terada
- Research and Analytical Center for Giant Molecules, Graduate School of Science, Tohoku University, Aramaki, Aoba-ku, Sendai 980-8578 (Japan). .,Department of Chemistry, Graduate School of Science, Tohoku University, Aramaki, Aoba-ku, Sendai 980-8578 (Japan).
| |
Collapse
|
36
|
Kondoh A, Odaira K, Terada M. Ring Expansion of Epoxides under Brønsted Base Catalysis: Formal [3+2] Cycloaddition of β,γ-Epoxy Esters with Imines Providing 2,4,5-Trisubstituted 1,3-Oxazolidines. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201505893] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
37
|
Ramanivas T, Gayatri G, Priyanka D, Nayak VL, Singarapu KK, Srivastava AK. Stereoselective synthesis of functionalized 1,2,3,4-tetrahydroisoquinolines (THIQs) via highly diastereoselective Ugi three-component reactions (U3CRs) with chiral 3,4-dihydroisoquinolines (DHIQs). RSC Adv 2015. [DOI: 10.1039/c5ra11144g] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
A highly diastereoselective Ugi three-component reaction (U3CR) of chiral 3,4-dihydroisoquinolines has been developed to synthesize enantiopure 1,2,3,4-tetrahydroisoquinolines (THIQs).
Collapse
Affiliation(s)
- T. Ramanivas
- Medicinal Chemistry and Pharmacology Division
- CSIR-Indian Institute of Chemical Technology
- Hyderabad 500 007
- India
- Academy of Scientific and Innovative Research
| | - G. Gayatri
- Centre for Molecular Modelling
- CSIR-Indian Institute of Chemical Technology
- Hyderabad 500 007
- India
| | - D. Priyanka
- Medicinal Chemistry and Pharmacology Division
- CSIR-Indian Institute of Chemical Technology
- Hyderabad 500 007
- India
| | - V. L. Nayak
- Medicinal Chemistry and Pharmacology Division
- CSIR-Indian Institute of Chemical Technology
- Hyderabad 500 007
- India
| | - K. K. Singarapu
- Centre for NMR and Structural Chemistry
- CSIR-Indian Institute of Chemical Technology
- Hyderabad 500 007
- India
| | - A. K. Srivastava
- Medicinal Chemistry and Pharmacology Division
- CSIR-Indian Institute of Chemical Technology
- Hyderabad 500 007
- India
- Academy of Scientific and Innovative Research
| |
Collapse
|
38
|
Chavan SP, Khairnar LB, Chavan PN, Dumare NB, Kalbhor DB, Gonnade RG. Chiron approach to formal synthesis of both antipodes of cis 3-hydroxypipecolic acid. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.09.118] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
39
|
Chiacchio U, Barbera V, Bonfanti R, Broggini GL, Campisi A, Gazzola S, Parenti R, Romeo G. Synthesis and biological evaluation of 1,7,8,8a-tetrahydro-3H-oxazolo[3,4-a]pyrazin-6(5H)-ones as antitumoral agents. Bioorg Med Chem 2013; 21:5748-53. [PMID: 23916151 DOI: 10.1016/j.bmc.2013.07.019] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2013] [Revised: 07/08/2013] [Accepted: 07/09/2013] [Indexed: 10/26/2022]
Abstract
A series of 1,7,8,8a-tetrahydro-3H-oxazolo[3,4-a]pyrazin-6(5H)-ones has been synthesized by an intramolecular, palladium(II) catalyzed, aminooxygenation of alkenyl ureas, readily available from glycine allylamides as starting materials. Biological tests showed that the obtained compounds are endowed with an interesting antitumoral activity against two human thyroid cancer cell lines, namely FTC-133 and 8305C, by promoting the apoptotic pathway and DNA fragmentation.
Collapse
Affiliation(s)
- Ugo Chiacchio
- Dipartimento di Scienze del Farmaco, Università di Catania, Italy.
| | | | | | | | | | | | | | | |
Collapse
|
40
|
|
41
|
Ward AF, Wolfe JP. Stereoselective synthesis of substituted 1,3-oxazolidines via Pd-catalyzed carboamination reactions of O-vinyl-1,2-amino alcohols. Org Lett 2011; 13:4728-31. [PMID: 21812450 DOI: 10.1021/ol2020048] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The stereoselective synthesis of 2,4- and 2,5-disubstituted 1,3-oxazolidines is accomplished via Pd-catalyzed carboamination of O-vinyl-1,2-amino alcohol derivatives. The transformations generate cis-disubstituted products with good to excellent diastereoselectivity, and enantiomerically enriched substrates are converted without loss of optical purity. In addition to yielding synthetically useful products that are difficult to generate with existing methods, these transformations illustrate that electron-rich enol ethers are viable substrates for alkene carboamination processes.
Collapse
Affiliation(s)
- Amanda F Ward
- Department of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48109-1055, USA
| | | |
Collapse
|
42
|
Williams RM. Natural products synthesis: enabling tools to penetrate Nature's secrets of biogenesis and biomechanism. J Org Chem 2011; 76:4221-59. [PMID: 21438619 PMCID: PMC3174107 DOI: 10.1021/jo2003693] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Selected examples from our laboratory of how synthetic technology platforms developed for the total synthesis of several disparate families of natural products was harnessed to penetrate biomechanistic and/or biosynthetic queries is discussed. Unexpected discoveries of biomechanistic reactivity and/or penetrating the biogenesis of naturally occurring substances were made possible through access to substances available only through chemical synthesis. Hypothesis-driven total synthesis programs are emerging as very useful conceptual templates for penetrating and exploiting the inherent reactivity of biologically active natural substances. In many instances, new enabling synthetic technologies were required to be developed. The examples demonstrate the often untapped richness of complex molecule synthesis to provide powerful tools to understand, manipulate and exploit Nature's vast and creative palette of secondary metabolites.
Collapse
Affiliation(s)
- Robert M Williams
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States.
| |
Collapse
|
43
|
Fan YC, Kwon O. Diversity-oriented synthesis based on the DPPP-catalyzed mixed double-Michael reactions of electron-deficient acetylenes and β-amino alcohols. Molecules 2011; 16:3802-25. [PMID: 21546881 PMCID: PMC4126835 DOI: 10.3390/molecules16053802] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2011] [Revised: 04/29/2011] [Accepted: 05/05/2011] [Indexed: 11/30/2022] Open
Abstract
In this study, we prepared oxizolidines through 1,3-bis(diphenylphosphino)-propane (DPPP)–catalyzed mixed double-Michael reactions of β-amino alcohols with electron-deficient acetylenes. These reactions are very suitable for the diversity-oriented parallel syntheses of oxizolidines because: (i) they are performed under mild metal-free conditions and (ii) the products are isolated without complicated work-up. To demonstrate the applicability of mixed double-Michael reactions for the preparation of five-membered-ring heterocycles, we prepared 60 distinct oxazolidines from five β-amino alcohols and 12 electron-deficient acetylenes. We synthesized 36 of these 60 oxazolidines in enantiomerically pure form from proteinogenic amino acid–derived β-amino alcohols.
Collapse
Affiliation(s)
| | - Ohyun Kwon
- Author to whom correspondence should be addressed; E-Mail:
| |
Collapse
|
44
|
Synthesis of functionalized tetrahydroisoquinolines via palladium-catalyzed 6-exo-dig carbocyclization of 2-bromo-N-propargylbenzylamines. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2011.01.127] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
45
|
|
46
|
Huck L, González JF, de la Cuesta E, Menéndez JC, Avendaño C. 1,3-Dipolar cycloadditions from tricyclic hemiaminals. Synthesis of the quinocarcin core through catalyst-free generation of azomethine ylides. Org Biomol Chem 2011; 9:6271-7. [DOI: 10.1039/c1ob05181d] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
47
|
Avendaño C, de la Cuesta E. Recent synthetic approaches to 6,15-iminoisoquino[3,2-b]3-benzazocine compounds. Chemistry 2010; 16:9722-34. [PMID: 20533463 DOI: 10.1002/chem.201000532] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Saframycins, safracins, renieramycins, cribrostatins, and esteinascidins are 6,15-iminoisoquino[3,2-b]3-benzazocine compounds that constitute the largest subgroup among the antitumor antibiotics belonging to the tetrahydroisoquinoline family. Their structural complexity has led to widespread synthetic attention to obtain them in both racemic and enantiopure forms. Publication in 1996 of the first total synthesis of ecteinascidin 743 by Corey's group was an important milestone, but the development of preparative protocols for these structures has continued, offering new possibilities to exploit the biological activity of the above-mentioned natural products and their analogues. This minireview is intended to update this progress following a methodological rather than a chronological organization. Besides of a brief description of the different strategies evolved from retrosynthetic analyses, which have been organized according to the order of bonding events that will link the precursors, semisynthetic approaches and a brief account of the total syntheses of ecteinascidin 743, have been analyzed.
Collapse
Affiliation(s)
- Carmen Avendaño
- Departamento de Química Orgánica y Farmacéutica, Facultad de Farmacia, Universidad Complutense, Pza. Ramón y Cajal s/n 28040-Madrid, Spain.
| | | |
Collapse
|
48
|
Wang B, Liu RH. Stereospecific, Flexible and Redox-Economic Asymmetric Synthesis ofcis- andtrans-3-Hydroxypipecolic Acids and Analogs. European J Org Chem 2009. [DOI: 10.1002/ejoc.200900231] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
49
|
Cuevas C, Francesch A. Development of Yondelis® (trabectedin, ET-743). A semisynthetic process solves the supply problem. Nat Prod Rep 2009; 26:322-37. [DOI: 10.1039/b808331m] [Citation(s) in RCA: 236] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
50
|
Fishlock D, Williams RM. Synthetic studies on Et-743. Assembly of the pentacyclic core and a formal total synthesis. J Org Chem 2008; 73:9594-600. [PMID: 18687003 PMCID: PMC2736329 DOI: 10.1021/jo801159k] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A formal total synthesis of the potent anticancer agent Et-743 is described. The tetrahydroisoquinoline core is stereoselectively constructed using a novel radical cyclization of a glyoxalimine. Further elaboration of this core rapidly accessed the pentacyclic core of Et-743, but a mixture of regiosisomers was obtained in the key Pictet-Spengler ring closure. A known advanced intermediate in the synthesis of Et-743 was intercepted, constituting a formal synthesis of the molecule.
Collapse
Affiliation(s)
- Dan Fishlock
- Department of Chemistry, Colorado State University Fort Collins, Colorado 80523, U.S.A
| | - Robert M. Williams
- Department of Chemistry, Colorado State University Fort Collins, Colorado 80523, U.S.A
- University of Colorado Cancer Center, Aurora, Colorado 80045, U.S.A
| |
Collapse
|