1
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Nicastri KA, Gerstner NC, Schomaker JM. Progress toward the Total Synthesis of Jogyamycin Using a Tandem Ichikawa/Winstein Rearrangement. Org Lett 2023; 25:8279-8283. [PMID: 37997640 PMCID: PMC10789149 DOI: 10.1021/acs.orglett.3c03286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2023]
Abstract
Jogyamycin is a densely functionalized aminocyclopentitol that displays potent antiprotozoal activity. Herein, we report a route toward this natural product that utilizes an unprecedented transformation involving a tandem Ichikawa-Winstein rearrangement to install the C-1/C-2 diamine core. Attempts to further functionalize the C-3/C-4 alkene en route to jogyamycin are also discussed.
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Affiliation(s)
- Kate A Nicastri
- Department of Chemistry, University of Wisconsin, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Nels C Gerstner
- Department of Chemistry, University of Wisconsin, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Jennifer M Schomaker
- Department of Chemistry, University of Wisconsin, 1101 University Avenue, Madison, Wisconsin 53706, United States
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2
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Kim B, Puthukanoori RK, Martha B, Reddy Muthyala N, Thota S, Thummala V, Rao Paraselli B, Chen DYK. Stereo-Controlled Synthesis of Vicinal Tertiary Carbinols: Application in the Synthesis of a Diol Substructure of Zaragozic Acid, Pactamycin and Ryanodol. Chemistry 2023; 29:e202301938. [PMID: 37395682 DOI: 10.1002/chem.202301938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 06/30/2023] [Accepted: 07/03/2023] [Indexed: 07/04/2023]
Abstract
A novel and flexible approach for the stereo-controlled synthesis of vicinal tertiary carbinols is reported. The developed strategy featured a highly diastereoselective singlet-oxygen (O2 1 ) [4+2] cycloaddition of rationally designed cyclohexadienones (derived from oxidative dearomatization of the corresponding carboxylic-acid appended phenol precursors), followed by programmed "O-O" and "C-C" bond cleavage. In doing so, a highly functionalized and versatile intermediate was identified and prepared in synthetically useful quantity as a plausible precursor to access a variety of designed and naturally occurring vicinal tertiary carbinol containing compounds. Most notably, the developed strategy was successfully applied in the stereo-controlled synthesis of advanced core structures of zaragozic acid, pactamycin and ryanodol.
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Affiliation(s)
- Byungjoo Kim
- Department of Chemistry, Seoul National University, Gwanak-1 Gwanak-ro, Gwanak-gu, Seoul, 08826, South Korea
| | | | | | | | - Srinivas Thota
- Chemveda Life Sciences, Pvt. Ltd., Hyderabad, Telangana, 500039, India
| | | | | | - David Y-K Chen
- Department of Chemistry, Seoul National University, Gwanak-1 Gwanak-ro, Gwanak-gu, Seoul, 08826, South Korea
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3
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Abstract
The enantioselective total synthesis of nesteretal A was achieved in 15 steps via biomimetic cascade hemiacetalizations at the final key step. Other key features of the total synthesis include Sharpless asymmetric dihydroxylation, diastereoselective 1,2-addition, Pd-catalyzed ene-type cyclization, and stereoselective epoxidation to construct a complex structure containing multiple quaternary carbons.
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Affiliation(s)
- Yuichiro Kawamoto
- School of Life Sciences, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
| | - Hideki Kitsukawa
- School of Life Sciences, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
| | - Toyoharu Kobayashi
- School of Life Sciences, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
| | - Hisanaka Ito
- School of Life Sciences, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
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4
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Tan S, Groaz E, Prichard MN, Kalkeri R, Ptak R, Herdewijn P. Introduction of a cyano group at the 2-position of an ( R, S)-3-hydroxy-2-(phosphonomethoxy)propyl (HPMP) derivative of thymine elicits selective anti-HBV activity. RSC Med Chem 2021; 12:804-808. [PMID: 34124679 DOI: 10.1039/d1md00086a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Accepted: 03/26/2021] [Indexed: 11/21/2022] Open
Abstract
The substantial impact of acyclic nucleoside phosphonates (ANPs) on human medicine encourages the synthesis of new ANP analogues with a potentially differentiated antiviral spectrum. Herein, we demonstrate the functionalization of the 2-position of the (R,S)-3-hydroxy-2-(phosphonomethoxy)propyl side-chain of an inactive ANP with a polar cyano group to generate a thymine analogue with selective inhibition of hepatitis B virus (HBV) replication (SI > 302; EC50 = 0.33 μM), without significant antiretroviral activity. These findings suggest new strategies to synthesize unique ANPs with a targeted antiviral profile.
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Affiliation(s)
- Shuai Tan
- KU Leuven, Rega Institute for Medical Research, Medicinal Chemistry Herestraat 49-Box 1041 3000 Leuven Belgium
| | - Elisabetta Groaz
- KU Leuven, Rega Institute for Medical Research, Medicinal Chemistry Herestraat 49-Box 1041 3000 Leuven Belgium .,Department of Pharmaceutical and Pharmacological Sciences, University of Padova Via Marzolo 5 35131 Padova Italy
| | - Mark N Prichard
- Department of Paediatrics, University of Alabama at Birmingham Birmingham AL 35294-3412 USA
| | - Raj Kalkeri
- Department of Infectious Disease Research, Drug Development, Southern Research Institute 431 Aviation Way Frederick Maryland 21701 USA
| | - Roger Ptak
- Department of Infectious Disease Research, Drug Development, Southern Research Institute 431 Aviation Way Frederick Maryland 21701 USA
| | - Piet Herdewijn
- KU Leuven, Rega Institute for Medical Research, Medicinal Chemistry Herestraat 49-Box 1041 3000 Leuven Belgium
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5
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Miura Y, Ouchi H, Inai M, Osawa T, Yoshimura F, Kanazawa J, Uchiyama M, Kondo M, Kan T. Synthetic Studies on Pactamycin: A Synthesis of Johnson's Intermediate. Org Lett 2020; 22:3515-3518. [PMID: 32319784 DOI: 10.1021/acs.orglett.0c00959] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A formal total synthesis of pactamycin (1) has been accomplished by face-selective and regioselective nitroso Diels-Alder (NDA) reaction of acyl nitroso compound 14, which contains a camphorsultam chiral auxiliary, and chiral cyclopentadiene 12. Construction of the chiral secondary alcohol of 12 was performed by (S,S)-Ts-DENEB catalyst-mediated reduction, and the NDA adduct 15a was readily converted to Johnson's intermediate 21.
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Affiliation(s)
- Yusuke Miura
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Hitoshi Ouchi
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Makoto Inai
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Taisei Osawa
- Graduate School of Pharmaceutical Sciences, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Fumihiko Yoshimura
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Junichiro Kanazawa
- Graduate School of Pharmaceutical Sciences, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.,Cluster for Pioneering Research (CPR), RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Masanobu Uchiyama
- Graduate School of Pharmaceutical Sciences, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.,Cluster for Pioneering Research (CPR), RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Mitsuru Kondo
- Research Institute of Green Science and Technology, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka 422-8529, Japan
| | - Toshiyuki Kan
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
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6
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Bartolo ND, Read JA, Valentín EM, Woerpel KA. Reactions of Allylmagnesium Reagents with Carbonyl Compounds and Compounds with C═N Double Bonds: Their Diastereoselectivities Generally Cannot Be Analyzed Using the Felkin-Anh and Chelation-Control Models. Chem Rev 2020; 120:1513-1619. [PMID: 31904936 PMCID: PMC7018623 DOI: 10.1021/acs.chemrev.9b00414] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
This review describes the additions of allylmagnesium reagents to carbonyl compounds and to imines, focusing on the differences in reactivity between allylmagnesium halides and other Grignard reagents. In many cases, allylmagnesium reagents either react with low stereoselectivity when other Grignard reagents react with high selectivity, or allylmagnesium reagents react with the opposite stereoselectivity. This review collects hundreds of examples, discusses the origins of stereoselectivities or the lack of stereoselectivity, and evaluates why selectivity may not occur and when it will likely occur.
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Affiliation(s)
- Nicole D. Bartolo
- Department of Chemistry, New York University, 100
Washington Square East, New York, NY 10003, USA
| | - Jacquelyne A. Read
- Department of Chemistry, New York University, 100
Washington Square East, New York, NY 10003, USA
- Department of Chemistry, University of Utah, 315 South 1400
East, Salt Lake City, UT 84112, USA
| | - Elizabeth M. Valentín
- Department of Chemistry, New York University, 100
Washington Square East, New York, NY 10003, USA
- Department of Chemistry, Susquehanna University, 514
University Avenue, Selinsgrove, PA 17870, USA
| | - K. A. Woerpel
- Department of Chemistry, New York University, 100
Washington Square East, New York, NY 10003, USA
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7
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8
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Eshon J, Gerstner NC, Schomaker JM. Oxidative allene amination for the synthesis of nitrogen-containing heterocycles. ARKIVOC 2018; 2018:204-233. [PMID: 31903453 PMCID: PMC6941799 DOI: 10.24820/ark.5550190.p010.670] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
The prevalence of stereochemically complex amines in natural products, pharmaceuticals and other bioactive compounds, coupled with the challenges inherent in their preparation, has inspired our work to develop new and versatile methodologies for the synthesis of amine-containing stereotriads ('triads'). The key step is a highly chemo-, regio-, and stereoselective transition-metal catalyzed nitrene transfer reaction that transforms one of the cumulated double bonds of an allene precursor into a bicyclic methyleneaziridine intermediate. This account summarizes our strategies to rapidly elaborate such intermediates into stereochemically rich, densely functionalized amine triads, nitrogen heterocycles, aminated carbocycles and other useful synthetic building blocks.
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Affiliation(s)
- Josephine Eshon
- Department of Chemistry, 1101 University Avenue, Madison, WI 53706, U.S.A
| | - Nels C Gerstner
- Department of Chemistry, 1101 University Avenue, Madison, WI 53706, U.S.A
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9
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Su JY, Olson DE, Ting SI, Du Bois J. Synthetic Studies Toward Pactamycin Highlighting Oxidative C-H and Alkene Amination Technologies. J Org Chem 2018; 83:7121-7134. [PMID: 29708344 DOI: 10.1021/acs.joc.8b00142] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A strategy enabled by C-H and alkene amination technologies for synthesizing the aminocyclitol natural product, pactamycin, is disclosed. This work features two disparate approaches for assembling the five-membered ring core of the target, the first of which utilizes acyl anion catalysis and a second involving β-ketoester aerobic hydroxylation. Installation of the C3-N bond, one of three contiguous nitrogen centers, is made possible through Rh-catalyzed allylic C-H amination of a sulfamate ester. Subsequent efforts are presented to introduce the C1,C2 cis-diamino moiety en route to pactamycin, including carbamate-mediated alkene aziridination. In the course of these studies, assembly of the core of C2- epi-pactamycate, which bears the carbon skeleton and all of the requisite nitrogen and oxygen functional groups found in the natural product, has been achieved.
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Affiliation(s)
- Justin Y Su
- Department of Chemistry , Stanford University , 337 Campus Drive , Stanford , California 94305 , United States
| | - David E Olson
- Department of Chemistry , Stanford University , 337 Campus Drive , Stanford , California 94305 , United States
| | - Stephen I Ting
- Department of Chemistry , Stanford University , 337 Campus Drive , Stanford , California 94305 , United States
| | - J Du Bois
- Department of Chemistry , Stanford University , 337 Campus Drive , Stanford , California 94305 , United States
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10
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Goto A, Yoshimura S, Nakao Y, Inai M, Asakawa T, Egi M, Hamashima Y, Kondo M, Kan T. Synthetic Study on Pactamycin: Stereoselective Synthesis of the Cyclopentane Core Framework. Org Lett 2017; 19:3358-3361. [PMID: 28604005 DOI: 10.1021/acs.orglett.7b01257] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The cyclopentane core framework 23 of pactamycin (1) was synthesized in 14 steps from symmetric cyclohexadiene 11. Our synthetic strategy features Rh-mediated catalytic desymmetrization of 10 via aziridination and then regioselective ring-opening reaction of sulfonylaziridine 9 with NaN3, ring-contraction of cyclohexene 14 by ozonolysis followed by intramolecular aldol reaction, and stereoselective construction of the sequential tetrasubstituted carbons by dihydroxylation and methylation reaction. Stereospecific incorporation of amine on tetrasubstituted carbon was achieved by Curtius rearrangement and subsequent carbamide formation.
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Affiliation(s)
- Atsumi Goto
- School of Pharmaceutical Sciences, University of Shizuoka , 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Satoshi Yoshimura
- School of Pharmaceutical Sciences, University of Shizuoka , 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Yuta Nakao
- School of Pharmaceutical Sciences, University of Shizuoka , 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Makoto Inai
- School of Pharmaceutical Sciences, University of Shizuoka , 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Tomohiro Asakawa
- School of Pharmaceutical Sciences, University of Shizuoka , 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Masahiro Egi
- School of Pharmaceutical Sciences, University of Shizuoka , 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Yoshitaka Hamashima
- School of Pharmaceutical Sciences, University of Shizuoka , 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Mitsuru Kondo
- Graduate School of Science and Technology, Shizuoka University , 836 Ohya, Suruga-ku, Shizuoka 422-8529, Japan
| | - Toshiyuki Kan
- School of Pharmaceutical Sciences, University of Shizuoka , 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
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11
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Yamaguchi M, Hayashi M, Hamada Y, Nemoto T. Synthetic Study of Pactamycin: Enantioselective Construction of the Pactamycin Core with Five Contiguous Stereocenters. Org Lett 2016; 18:2347-50. [PMID: 27171747 DOI: 10.1021/acs.orglett.6b00761] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A synthetic study of pactamycin is described. Enantioselective construction of the aminocyclopentitol core of pactamycin bearing five contiguous stereocenters was achieved based on an organocatalytic asymmetric aziridination of 2-cyclopentene-1-one, a regio- and diastereoselective 1,3-dipolar cycloaddition, and a rhodium-catalyzed C-H amination reaction.
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Affiliation(s)
- Mami Yamaguchi
- Graduate School of Pharmaceutical Sciences, Chiba University , 1-8-1, Inohana, Chuo-ku, Chiba, 260-8675, Japan
| | - Minami Hayashi
- Graduate School of Pharmaceutical Sciences, Chiba University , 1-8-1, Inohana, Chuo-ku, Chiba, 260-8675, Japan
| | - Yasumasa Hamada
- Graduate School of Pharmaceutical Sciences, Chiba University , 1-8-1, Inohana, Chuo-ku, Chiba, 260-8675, Japan
| | - Tetsuhiro Nemoto
- Graduate School of Pharmaceutical Sciences, Chiba University , 1-8-1, Inohana, Chuo-ku, Chiba, 260-8675, Japan.,Molecular Chirality Research Center, Chiba University , 1-33, Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
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12
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Malassis J, Bartlett N, Hands K, Selby MD, Linclau B. Total Synthesis of (-)-Luminacin D. J Org Chem 2016; 81:3818-37. [PMID: 27054953 DOI: 10.1021/acs.joc.6b00489] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A second-generation synthesis of (-)-luminacin D based on an early stage introduction of the trisubstituted epoxide group is reported, allowing access to the natural product in an improved yield and a reduced number of steps (5.4%, 17 steps vs 2.6%, 19 steps). A full account of the optimization work is provided, with the reversal of stereoselection in the formation of the C4 alcohol in equally excellent diastereoselectivity as the key improvement.
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Affiliation(s)
- Julien Malassis
- Chemistry, University of Southampton , Highfield, Southampton SO17 1BJ, U.K
| | - Nathan Bartlett
- Chemistry, University of Southampton , Highfield, Southampton SO17 1BJ, U.K
| | - Kane Hands
- Chemistry, University of Southampton , Highfield, Southampton SO17 1BJ, U.K
| | | | - Bruno Linclau
- Chemistry, University of Southampton , Highfield, Southampton SO17 1BJ, U.K
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13
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Gerstner NC, Adams CS, Grigg RD, Tretbar M, Rigoli JW, Schomaker JM. Diastereoselective Synthesis of the Aminocyclitol Core of Jogyamycin via an Allene Aziridination Strategy. Org Lett 2016; 18:284-7. [PMID: 26741730 DOI: 10.1021/acs.orglett.5b03453] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Oxidative allene amination provides rapid access to densely functionalized amine-containing stereotriads through highly reactive bicyclic methyleneaziridine intermediates. This strategy has been demonstrated as a viable approach for the construction of the densely functionalized aminocyclitol core of jogyamycin, a natural product with potent antiprotozoal activity. Importantly, the flexibility of oxidative allene amination will enable the syntheses of modified aminocyclitol analogues of the jogyamycin core.
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Affiliation(s)
- Nels C Gerstner
- Department of Chemistry, University of Wisconsin , Madison, Wisconsin 53706, United States
| | - Christopher S Adams
- Department of Chemistry, University of Wisconsin , Madison, Wisconsin 53706, United States
| | - R David Grigg
- Department of Chemistry, University of Wisconsin , Madison, Wisconsin 53706, United States
| | - Maik Tretbar
- Department of Chemistry, University of Wisconsin , Madison, Wisconsin 53706, United States
| | - Jared W Rigoli
- Department of Chemistry, University of Wisconsin , Madison, Wisconsin 53706, United States
| | - Jennifer M Schomaker
- Department of Chemistry, University of Wisconsin , Madison, Wisconsin 53706, United States
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14
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Bartlett N, Gross L, Péron F, Asby DJ, Selby MD, Tavassoli A, Linclau B. Stereocontrol by quaternary centres: a stereoselective synthesis of (-)-luminacin D. Chemistry 2014; 20:3306-10. [PMID: 24519660 DOI: 10.1002/chem.201304776] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2013] [Indexed: 01/28/2023]
Abstract
Very high diastereoselectivity can be achieved by 1,3-chelation-controlled allylation of aldehydes that possess a non-chelating α-ether substituent, even if the α-position is a quaternary centre and/or a spiro-epoxide. This reaction was used as a key step in an enantioselective synthesis of the angiogenesis inhibitor luminacin D.
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Affiliation(s)
- Nathan Bartlett
- Department of Chemistry, University of Southampton, Highfield, Southampton SO17 1BJ (UK)
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