1
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Park S, Myeong IS, Ham WH. Recent advances in the total synthesis of polyhydroxylated alkaloids via chiral oxazines. Org Biomol Chem 2024; 22:894-926. [PMID: 38230703 DOI: 10.1039/d3ob01624b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2024]
Abstract
This review summarizes recently established methodologies developed for the enantioselective and diastereoselective synthesis of chiral 1,3-oxazines. These compounds are of interest as advanced synthetic intermediates in the total synthesis of structurally complex and biologically active polyhydroxylated alkaloids such as (+)-1-deoxynojirimycin, (-)-anisomycin, (+)-castanospermine, (+)-casuarine, (-)-conduramine F-1, (-)-sphingofungin B, Neu5Ac methyl ester, and other natural products. The devised synthetic approach aims to offer a direct, efficient, and adaptable method for obtaining both pure enantiomers and pure diastereomers. It revolves around utilizing chiral building blocks like syn,syn-, syn,syn,anti-, syn,anti-, syn,anti,syn-, anti,syn-, anti,syn,syn-, and anti,syn,anti-oxazines. By integrating oxazine chemistry with established and innovative transformations, this approach enabled the synthesis of 30 polyhydroxylated amines across various studies conducted between 2007 and 2022.
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Affiliation(s)
- Seokhwi Park
- YS Life Science Co., Ltd, 207, Sujeong-ro, Jangan-myeon, Hwaseong-si, Gyeonggi-do, 18581, Republic of Korea.
| | - In-Soo Myeong
- College of Pharmacy, Daegu Catholic University, 13-13, Hayang-ro, Hayang-eup, Gyeongsan-si, Gyeongsangbuk-do, 38430, Republic of Korea.
| | - Won-Hun Ham
- YS Life Science Co., Ltd, 207, Sujeong-ro, Jangan-myeon, Hwaseong-si, Gyeonggi-do, 18581, Republic of Korea.
- School of Pharmacy, Sungkyunkwan University, 2066, Seobu-ro, Suwon-si, Gyeonggi-do, 16419, Republic of Korea
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2
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Park GM, Kong SJ, Park JH, Kang JE, An SH, Kim HS, Kim IS, Boggu PR, Jung YH. Synthesis and evaluation of ent-Conduramine C-1 derivatives as α-glucosidase inhibitors via CSI-mediated amination reaction. Carbohydr Res 2023; 524:108746. [PMID: 36682231 DOI: 10.1016/j.carres.2023.108746] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 01/12/2023] [Accepted: 01/16/2023] [Indexed: 01/19/2023]
Abstract
Concise synthesis of ent-conduramine C-1 and its derivatives has been achieved by using commercially available d-ribose. The key steps in the synthesis are regioselective and diastereoselective amination of polybenzyl ethers by chlorosulfonyl isocyanate (CSI), chelation-controlled carbonyl addition, and intramolecular olefin metathesis. All of the synthesized compounds were evaluated for inhibitory activity against α-glucosidase. The derivatives 18 (IC50 = 0.65 ± 0.03 mM) and 19 (IC50 = 0.26 ± 0.01 mM) were identified to be more potent than well-known α-glucosidase inhibitor acarbose (IC50 = 1.05 ± 0.17 mM) as a positive control.
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Affiliation(s)
- Gi Min Park
- School of Pharmacy, Sungkyunkwan University, Suwon, Gyeonggi-do, 16419, Republic of Korea
| | - Sun Ju Kong
- School of Pharmacy, Sungkyunkwan University, Suwon, Gyeonggi-do, 16419, Republic of Korea
| | - Jae Hyeon Park
- School of Pharmacy, Sungkyunkwan University, Suwon, Gyeonggi-do, 16419, Republic of Korea
| | - Ji Eun Kang
- School of Pharmacy, Sungkyunkwan University, Suwon, Gyeonggi-do, 16419, Republic of Korea
| | - Sung Hwan An
- School of Pharmacy, Sungkyunkwan University, Suwon, Gyeonggi-do, 16419, Republic of Korea
| | - Hyung Sik Kim
- School of Pharmacy, Sungkyunkwan University, Suwon, Gyeonggi-do, 16419, Republic of Korea
| | - In Su Kim
- School of Pharmacy, Sungkyunkwan University, Suwon, Gyeonggi-do, 16419, Republic of Korea
| | - Pulla Reddy Boggu
- School of Pharmacy, Sungkyunkwan University, Suwon, Gyeonggi-do, 16419, Republic of Korea.
| | - Young Hoon Jung
- School of Pharmacy, Sungkyunkwan University, Suwon, Gyeonggi-do, 16419, Republic of Korea.
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3
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Da Silva Pinto S, Davies SG, Fletcher AM, Roberts PM, Thomson JE. Synthesis of (-)-Conduramine A1, (-)-Conduramine A2 and (-)-Conduramine E2 in Six Steps from Cyclohexa-1,4-diene. Org Lett 2019; 21:7933-7937. [PMID: 31518146 DOI: 10.1021/acs.orglett.9b02914] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A method to enable the synthesis of conduramines and their N-substituted derivatives (enantiopure or racemic form) in six steps (five steps for N-substituted derivatives) from cyclohexa-1,4-diene is reported. Key features of this reaction sequence include a preparation of benzene oxide that is amenable to multigram scale, and its efficient ring-opening upon treatment with a primary amine. Epoxidation of the resultant amino alcohols (40% aq HBF4 then m-CPBA) is accompanied by hydrolytic ring-opening in situ to give the corresponding N-substituted conduramine derivatives directly. These may undergo subsequent N-deprotection to give the parent conduramines, as demonstrated by the preparation of enantiopure (-)-conduramine A1, (-)-conduramine A2, and (-)-conduramine E2 (the latter two for the first time). The selectivity of the epoxidation reaction is proposed to be the result of competitive ammonium-directed and hydroxyl-directed epoxidation processes, followed by either direct (SN2-type) or conjugate (SN2'-type) ring-openings of the intermediate epoxides.
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Affiliation(s)
- Solange Da Silva Pinto
- Department of Chemistry, Chemistry Research Laboratory , University of Oxford , Mansfield Road , Oxford OX1 3TA , United Kingdom
| | - Stephen G Davies
- Department of Chemistry, Chemistry Research Laboratory , University of Oxford , Mansfield Road , Oxford OX1 3TA , United Kingdom
| | - Ai M Fletcher
- Department of Chemistry, Chemistry Research Laboratory , University of Oxford , Mansfield Road , Oxford OX1 3TA , United Kingdom
| | - Paul M Roberts
- Department of Chemistry, Chemistry Research Laboratory , University of Oxford , Mansfield Road , Oxford OX1 3TA , United Kingdom
| | - James E Thomson
- Department of Chemistry, Chemistry Research Laboratory , University of Oxford , Mansfield Road , Oxford OX1 3TA , United Kingdom
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4
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Lo HJ, Chang YK, Ananthan B, Lih YH, Liu KS, Yan TH. Total Synthesis of (+)-Lycoricidine and Conduramine B-1, ent-C-1, C-4, D-1, ent-F-1, and ent-F-4, and Formal Synthesis of (-)-Laminitol: a C2-Symmetric Chiral-Pool-Based Flexible Strategy. J Org Chem 2019; 84:10065-10075. [PMID: 31331167 DOI: 10.1021/acs.joc.9b01221] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A facile and diversity-oriented synthetic strategy toward aminocyclitol natural products from inexpensive C2-symmetric l-tartaric acid was developed. The pivotal epoxide was used as a common intermediate to accomplish eight diverse target molecules in six to eleven steps. Various allyl-amine-type conduramines were synthesized in a diastereoselective manner. Heck arylation was explored to construct a phenanthridone ring in a concise synthesis of (+)-lycoricidine. In addition, a highly efficient formal synthesis of (-)-laminitol was developed.
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Affiliation(s)
- Hong-Jay Lo
- Department of Chemistry , National Chung Hsing University , Taichung 402 , Taiwan
| | - Yuan-Kang Chang
- Department of Chemistry , National Chung Hsing University , Taichung 402 , Taiwan
| | | | - Yu-Hsuan Lih
- Department of Chemistry , National Chung Hsing University , Taichung 402 , Taiwan
| | - Kuang-Shun Liu
- Department of Chemistry , National Chung Hsing University , Taichung 402 , Taiwan
| | - Tu-Hsin Yan
- Department of Chemistry , National Chung Hsing University , Taichung 402 , Taiwan
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Harit VK, Ramesh NG. Ring closing metathesis (RCM) approach to the synthesis of conduramine B-2, ent-conduramine F-2, aminocyclopentitol and trihydroxyazepane. Org Biomol Chem 2019; 17:5951-5961. [PMID: 31166343 DOI: 10.1039/c9ob01010f] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The syntheses of conduramine B-2, ent-conduramine F-2, aminocyclopentitol and trihydroxyazepane were accomplished from a common precursor, through a divergent approach using ring closing metathesis (RCM) as the key step. Tri-O-benzyl-d-glucal was converted to 3,4,6-tri-O-benzyl-1,2-dideoxy-2-iodo-1-p-toluenesulfonamido-α-d-mannose. Exposure to NaBH4 in MeOH resulted in a facile 1,2-transposition of the -NHTs group with concomitant glycosylation to give methyl 3,4,6-tri-O-benzyl-2-deoxy-2-p-toluenesulfonamido-β-d-glucoside, which was converted into methyl 6-deoxy-6-iodo-glucoside in three steps. Zinc-mediated Vasella's rearrangement proceeded smoothly to give the pluripotent formyl-olefin, possessing both electrophilic and nucleophilic sites, which was used as a common precursor in our diversity-oriented approach. Vinylation of the carbonyl group followed by RCM and subsequent deprotection resulted in the successful synthesis of conduramine B-2 and ent-conduramine F-2 for the first time. On the other hand, the Wittig reaction of the formyl-olefin affords the diene that undergoes Grubbs' I catalyzed RCM and deprotection/reduction to provide 3-amino-cyclopentan-1,2-diol. Utilizing the nucleophilic site at the nitrogen of the common precursor, base mediated N-allylation was carried out to obtain the corresponding diene that underwent a smooth RCM to afford trihydroxyazepane.
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Affiliation(s)
- Vimal Kant Harit
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi - 110016, India.
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7
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Uraoka S, Shinohara I, Shimizu H, Noguchi K, Yoshimura A, Zhdankin VV, Saito A. Hetero Diels-Alder Reaction and Ene Reaction of Acylnitroso Species in situ Generated by Hypoiodite Catalysis. European J Org Chem 2018. [DOI: 10.1002/ejoc.201801340] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Saki Uraoka
- Division of Applied Chemistry; Institute of Engineering; Tokyo University of Agriculture and Technology; 2-24-16 Naka-cho, Koganei 184-8588 Tokyo Japan
| | - Ikumi Shinohara
- Division of Applied Chemistry; Institute of Engineering; Tokyo University of Agriculture and Technology; 2-24-16 Naka-cho, Koganei 184-8588 Tokyo Japan
| | - Hisato Shimizu
- Division of Applied Chemistry; Institute of Engineering; Tokyo University of Agriculture and Technology; 2-24-16 Naka-cho, Koganei 184-8588 Tokyo Japan
| | - Keiichi Noguchi
- Instrumentation Analysis Center; Institute of Engineering; Tokyo University of Agriculture and Technology; Tokyo Japan
| | - Akira Yoshimura
- Department of Chemistry and Biochemistry; Institute of Engineering; University of Minnesota Duluth; 55812 Duluth MN USA
- Institute of Engineering; The Tomsk Polytechnic University; 634050 Tomsk Russia
| | - Viktor V. Zhdankin
- Department of Chemistry and Biochemistry; Institute of Engineering; University of Minnesota Duluth; 55812 Duluth MN USA
- Institute of Engineering; The Tomsk Polytechnic University; 634050 Tomsk Russia
| | - Akio Saito
- Division of Applied Chemistry; Institute of Engineering; Tokyo University of Agriculture and Technology; 2-24-16 Naka-cho, Koganei 184-8588 Tokyo Japan
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8
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Da Silva Pinto S, Davies SG, Fletcher AM, Roberts PM, Thomson JE. Diastereoselective Ammonium-Directed Epoxidation in the Asymmetric Syntheses of Dihydroconduramines (+)-C-2, (-)-C-2, (+)-D-2, (+)-E-2, (+)-F-2, and (-)-F-2. J Org Chem 2018; 83:9939-9957. [PMID: 30037221 DOI: 10.1021/acs.joc.8b01359] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Epoxidations (40% aq HBF4 then m-CPBA) of racemic cis-2-( N-benzylamino)cyclohex-3-en-1-ol and racemic cis-2-( N, N-dibenzylamino)cyclohex-3-en-1-ol proceed with very high levels of diastereoselectivity (>95:5 dr). The latter is in direct contrast to the epoxidation of the corresponding trans-diastereoisomer (which proceeds with essentially no selectivity), showing that the relative configuration of the substrate dramatically influences the diastereoselectivity in these instances. Meanwhile, epoxidations of enantiopure (1 R,2 S,α R)-2-[( N-α-methylbenzyl)amino]cyclohex-3-en-1-ol and (1 S,2 R,α R)-2-[( N-α-methylbenzyl)amino]cyclohex-3-en-1-ol [surrogates for the enantiomers of cis-2-( N-benzylamino)cyclohex-3-en-1-ol] proceed with complete diastereoselectivity (>95:5 dr) under the same conditions, showing that neither the presence of the α-methyl group nor the relative configuration of the α-methylbenzyl stereocenter have an effect upon the established level of diastereoslectivity in these cases. In contrast, epoxidations of enantiopure (1 R,2 S,α R)-2-[ N-benzyl- N-(α-methylbenzyl)amino]cyclohex-3-en-1-ol and (1 S,2 R,α R)-2-[ N-benzyl- N-(α-methylbenzyl)amino]cyclohex-3-en-1-ol [surrogates for the enantiomers of cis-2-( N, N-dibenzylamino)cyclohex-3-en-1-ol] proceed with lower diastereoselectivity (∼70:30 dr). Thus, the presence of the α-methyl group has a detrimental effect on the established level of diastereoselectivity in these cases (although again the relative configuration of the α-methylbenzyl stereocenter is unimportant). The diastereoselective epoxidation pathway is used to enable the asymmetric syntheses of six hitherto unknown, enantiopure dihydroconduramines (+)-C-2, (-)-C-2, (+)-D-2, (+)-E-2, (+)-F-2, and (-)-F-2 (>99% ee in each case).
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Affiliation(s)
- Solange Da Silva Pinto
- Department of Chemistry, Chemistry Research Laboratory , University of Oxford , Mansfield Road , Oxford OX1 3TA , U.K
| | - Stephen G Davies
- Department of Chemistry, Chemistry Research Laboratory , University of Oxford , Mansfield Road , Oxford OX1 3TA , U.K
| | - Ai M Fletcher
- Department of Chemistry, Chemistry Research Laboratory , University of Oxford , Mansfield Road , Oxford OX1 3TA , U.K
| | - Paul M Roberts
- Department of Chemistry, Chemistry Research Laboratory , University of Oxford , Mansfield Road , Oxford OX1 3TA , U.K
| | - James E Thomson
- Department of Chemistry, Chemistry Research Laboratory , University of Oxford , Mansfield Road , Oxford OX1 3TA , U.K
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9
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Shimizu H, Yoshimura A, Noguchi K, Nemykin VN, Zhdankin VV, Saito A. Oxidative cycloaddition of hydroxamic acids with dienes or guaiacols mediated by iodine(III) reagents. Beilstein J Org Chem 2018; 14:531-536. [PMID: 29623114 PMCID: PMC5852453 DOI: 10.3762/bjoc.14.39] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2017] [Accepted: 02/16/2018] [Indexed: 11/23/2022] Open
Abstract
[Bis(trifluoroacetoxy)iodo]benzene (BTI) and (diacetoxyiodo)benzene (DIB) efficiently promote the formation of acylnitroso species from hydroxamic acids in the presence of various dienes to give the corresponding hetero-Diels–Alder (HDA) adducts in moderate to high yields. The present method could be applied to the HDA reactions of acylnitroso species with o-benzoquinones generated by the oxidative dearomatization of guaiacols.
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Affiliation(s)
- Hisato Shimizu
- Division of Applied Chemistry, Institute of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan
| | - Akira Yoshimura
- Department of Chemistry and Biochemistry, University of Minnesota, Duluth, MN 55812, USA.,The Tomsk Polytechnic University, Tomsk 634050, Russia
| | - Keiichi Noguchi
- Instrumentation Analysis Center, Institute of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan
| | - Victor N Nemykin
- Department of Chemistry, University of Manitoba, Winnipeg, MB R3T 2N2, Canada
| | - Viktor V Zhdankin
- Department of Chemistry and Biochemistry, University of Minnesota, Duluth, MN 55812, USA
| | - Akio Saito
- Division of Applied Chemistry, Institute of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan
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10
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An efficient stereoselective synthesis of aminocyclohexenes from 7-azanorbornenes via LiAlH 4 mediated tandem double bond migration-ring opening sequence. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2017.12.073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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11
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12
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Good SN, Sharpe RJ, Johnson JS. Highly Functionalized Tricyclic Oxazinanones via Pairwise Oxidative Dearomatization and N-Hydroxycarbamate Dehydrogenation: Molecular Diversity Inspired by Tetrodotoxin. J Am Chem Soc 2017; 139:12422-12425. [PMID: 28853553 DOI: 10.1021/jacs.7b07745] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Benzenoids in principle represent attractive and abundant starting materials for the preparation of substituted cyclohexanes; however, the synthetic tools available for overcoming the considerable aromatic energies inherent to these building blocks limit the available product types. In this paper, we demonstrate access to heretofore unknown heterotricyclic structures by leveraging oxidative dearomatization of 2-hydroxymethyl phenols with concurrent N-hydroxycarbamate dehydrogenation using a common oxidant. The pairwise-generated, mutually reactive species then participate in a second stage acylnitroso Diels-Alder cycloaddition. The reaction chemistry of the derived [2.2.2]-oxazabicycles, bearing four orthogonal functional groups and three stereogenic centers, is shown to yield considerable diversity in downstream products. The methodology allows for the expeditious synthesis of a functionalized intermediate bearing structural and stereochemical features in common with the complex alkaloid tetrodotoxin.
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Affiliation(s)
- Steffen N Good
- Department of Chemistry, University of North Carolina at Chapel Hill , Chapel Hill, North Carolina 27599-3290, United States
| | - Robert J Sharpe
- Department of Chemistry, University of North Carolina at Chapel Hill , Chapel Hill, North Carolina 27599-3290, United States
| | - Jeffrey S Johnson
- Department of Chemistry, University of North Carolina at Chapel Hill , Chapel Hill, North Carolina 27599-3290, United States
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13
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Harry NA, Saranya S, Krishnan KK, Anilkumar G. Recent Advances in the Chemistry of Masked Ortho
-Benzoquinones and Their Applications in Organic Synthesis. ASIAN J ORG CHEM 2017. [DOI: 10.1002/ajoc.201700168] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Nissy Ann Harry
- School of Chemical Sciences; Mahatma Gandhi University; Priyadarsini Hills P.O. Kottayam Kerala 686560 India
| | - Salim Saranya
- School of Chemical Sciences; Mahatma Gandhi University; Priyadarsini Hills P.O. Kottayam Kerala 686560 India
| | - K. Keerthi Krishnan
- School of Chemical Sciences; Mahatma Gandhi University; Priyadarsini Hills P.O. Kottayam Kerala 686560 India
| | - Gopinathan Anilkumar
- School of Chemical Sciences; Mahatma Gandhi University; Priyadarsini Hills P.O. Kottayam Kerala 686560 India
- Advanced Molecular Materials Research Centre (AMMRC); Mahatma Gandhi University; Priyadarsini Hills P.O. Kottayam Kerala 686560 India
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14
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Myeong IS, Kim JS, Lee YT, Kang JC, Park SH, Jung C, Ham WH. Asymmetric total synthesis of (−)-conduramine A-1 via a chiral syn , anti -oxazine. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.tetasy.2016.06.021] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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15
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Brulíková L, Harrison A, Miller MJ, Hlaváč J. Stereo- and regioselectivity of the hetero-Diels-Alder reaction of nitroso derivatives with conjugated dienes. Beilstein J Org Chem 2016; 12:1949-1980. [PMID: 27829901 PMCID: PMC5082640 DOI: 10.3762/bjoc.12.184] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2016] [Accepted: 08/01/2016] [Indexed: 01/19/2023] Open
Abstract
The hetero-Diels-Alder reaction between a nitroso dienophile and a conjugated diene to give the 3,6-dihydro-2H-1,2-oxazine scaffold is useful for the synthesis of many biologically interesting molecules due to the diverse opportunities created by subsequent transformations of the resulting 1,2-oxazine ring. This review discusses the rationale for the observed regio- and stereoselectivity and the methods developed in recent years used to control and improve the stereo- and regioselectivity for the synthesis of 1,2-oxazine scaffolds.
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Affiliation(s)
- Lucie Brulíková
- Department of Organic Chemistry, Faculty of Science, Palacký University, 17. Listopadu 12, 77146 Olomouc, Czech Republic
| | - Aidan Harrison
- Department of Medicinal Chemistry, Institute of Molecular and Translational Medicine, Hněvotínská 5, 77900 Olomouc, Czech Republic
| | - Marvin J Miller
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN 46556, USA
| | - Jan Hlaváč
- Department of Medicinal Chemistry, Institute of Molecular and Translational Medicine, Hněvotínská 5, 77900 Olomouc, Czech Republic
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16
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Taneja N, Peddinti RK. Iodobenzene and m-chloroperbenzoic acid mediated oxidative dearomatization of phenols. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.07.078] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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17
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Panda A, Biswas RG, Pal S. A unified and common intermediate strategy for the asymmetric total synthesis of 3-deoxy-neo-inositol and conduritol E. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.06.127] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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18
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19
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Maji B, Yamamoto H. Catalytic Enantioselective Nitroso Diels–Alder Reaction. J Am Chem Soc 2015; 137:15957-63. [DOI: 10.1021/jacs.5b11273] [Citation(s) in RCA: 76] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Biplab Maji
- Molecular Catalyst Research
Center, Chubu University, 1200 Matsumoto-cho, Kasugai, Aichi 487-8501, Japan
| | - Hisashi Yamamoto
- Molecular Catalyst Research
Center, Chubu University, 1200 Matsumoto-cho, Kasugai, Aichi 487-8501, Japan
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20
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Chaiyaveij D, Batsanov AS, Fox MA, Marder TB, Whiting A. An Experimental and Computational Approach to Understanding the Reactions of Acyl Nitroso Compounds in [4 + 2] Cycloadditions. J Org Chem 2015; 80:9518-34. [DOI: 10.1021/acs.joc.5b01470] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Duangduan Chaiyaveij
- Chemistry
Department, Faculty of Science and Technology, Thammasat University Rangsit Campus, Khlongluang, Pathumthani 12120, Thailand
| | - Andrei S. Batsanov
- Centre
for Sustainable Chemical Processes, Department of Chemistry, Durham University, Science Laboratories, South Road, Durham DH1 3LE, United Kingdom
| | - Mark A. Fox
- Centre
for Sustainable Chemical Processes, Department of Chemistry, Durham University, Science Laboratories, South Road, Durham DH1 3LE, United Kingdom
| | - Todd B. Marder
- Institut
für Anorganische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Andrew Whiting
- Centre
for Sustainable Chemical Processes, Department of Chemistry, Durham University, Science Laboratories, South Road, Durham DH1 3LE, United Kingdom
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21
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Naganaboina RT, Peddinti RK. Facile one-pot synthesis of (benzoxazol-2ʹ-yl)bicyclo[2.2.2]octen-2-one derivatives. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.06.073] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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22
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23
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Rapid construction of polycyclic ring systems from aromatics: stereoselective synthesis of the carbon framework of vinigrol. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.07.064] [Citation(s) in RCA: 6] [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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24
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Abstract
A concise asymmetric synthesis of aminocyclitols, such as diastereomeric 2-deoxystreptamine analogues and conduramine A, is described. The Pd-catalyzed asymmetric desymmetrization of meso 1,4-dibenzolate enables the synthesis of highly oxidized cyclohexane architectures. These scaffolds can potentially be used to access new aminoglycoside antibiotics and enantiomerically pure α-glucosidase inhibitors.
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Affiliation(s)
- Barry M Trost
- Department Of Chemistry, Stanford University, Stanford, CA (USA).
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25
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Surasani SR, Parumala SKR, Peddinti RK. Diels–Alder reactions of 4-halo masked o-benzoquinones. Experimental and theoretical investigations. Org Biomol Chem 2014; 12:5656-68. [DOI: 10.1039/c4ob00856a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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26
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Niu GH, Hou CS, Chuang GJ, Wu CP, Liao CC. Diels-Alder Reactions of Maskedo-Benzoquinones with 1-Vinylcyclohexenes: A Short and Efficient Entry to Highly Functionalized Decahydrophenanthrene Skeleton. European J Org Chem 2014. [DOI: 10.1002/ejoc.201400016] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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27
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Boyd DR, Sharma ND, Belhocine T, Malone JF, McGregor ST, Atchison J, McIntyre PAB, Stevenson PJ. Reactions of nitrogen nucleophiles with enantiopure cyclohexenyl electrophiles: a stereo- and regio- selective study. J PHYS ORG CHEM 2013. [DOI: 10.1002/poc.3183] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Derek R. Boyd
- School of Chemistry and Chemical Engineering; Queen's University; Belfast BT9 5AG UK
| | - Narain D. Sharma
- School of Chemistry and Chemical Engineering; Queen's University; Belfast BT9 5AG UK
| | - Tayeb Belhocine
- School of Chemistry and Chemical Engineering; Queen's University; Belfast BT9 5AG UK
| | - John F. Malone
- School of Chemistry and Chemical Engineering; Queen's University; Belfast BT9 5AG UK
| | - Stuart T. McGregor
- School of Chemistry and Chemical Engineering; Queen's University; Belfast BT9 5AG UK
| | - Jordan Atchison
- School of Chemistry and Chemical Engineering; Queen's University; Belfast BT9 5AG UK
| | - Peter A. B. McIntyre
- School of Chemistry and Chemical Engineering; Queen's University; Belfast BT9 5AG UK
| | - Paul J. Stevenson
- School of Chemistry and Chemical Engineering; Queen's University; Belfast BT9 5AG UK
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Ring rearrangement metathesis of 2-allylbicyclo[2.2.2]octenes: a short entry to cis-hydrindenols from 2-methoxyphenols. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.03.142] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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29
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30
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Chou YY, Liao CC. First Asymmetric Total Syntheses and Determination of Absolute Configurations of (+)-Eudesmadiene-12,6-olide and (+)-Frullanolide. Org Lett 2013; 15:1584-7. [DOI: 10.1021/ol4003724] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yu-Yu Chou
- Department of Chemistry, National TsingHua University, Hsinchu 30013, Taiwan, and Department of Chemistry, Chung Yuan Christian University, Chungli 32023, Taiwan
| | - Chun-Chen Liao
- Department of Chemistry, National TsingHua University, Hsinchu 30013, Taiwan, and Department of Chemistry, Chung Yuan Christian University, Chungli 32023, Taiwan
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31
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Chittimalla SK, Kuppusamy R, Thiyagarajan K, Bandi C. Reaction of Nitrile Oxides with Maskedo-Benzoquinones; Synthesis of Highly Functionalized Isoxazolines. European J Org Chem 2013. [DOI: 10.1002/ejoc.201201670] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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32
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Synthesis of novel mono and bis-indole conduritol derivatives and their α/β-glycosidase inhibitory effects. Bioorg Med Chem Lett 2012; 22:7499-503. [DOI: 10.1016/j.bmcl.2012.10.038] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2012] [Revised: 10/03/2012] [Accepted: 10/08/2012] [Indexed: 11/17/2022]
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33
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Ghosal P, Shaw AK. A chiron approach to aminocytitols by Petasis-Borono-Mannich reaction: formal synthesis of (+)-conduramine E and (-)-conduramine E. J Org Chem 2012; 77:7627-32. [PMID: 22900915 DOI: 10.1021/jo300804d] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A chiron approach to a stereoselective route for the synthesis of aminocytitols from carbohydrates is described. The formal synthesis of (+)-conduramine E and (-)-conduramine E was achieved by utilizing this strategy. The key features of the synthetic strategy include one-pot three-component Petasis-Borono-Mannich reaction to introduce the syn-β-amino alcohol functionality of conduramine E and ring-closing metathesis to construct its carbocyclic core. The present synthetic approach paves the way for stereoselective synthesis of several conduramines starting from carbohydrates.
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Affiliation(s)
- Partha Ghosal
- Division of Medicinal and Process Chemistry, CSIR-Central Drug Research Institute, Lucknow 226 001, India
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34
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Ekmekci Z, Balci M. Synthesis of a New 2,3-Diaminoconduritol with Conduritol F Structure. European J Org Chem 2012. [DOI: 10.1002/ejoc.201200582] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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35
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Norsikian S, Soulé JF, Cannillo A, Guillot R, Dau METH, Beau JM. Remarkable stereoselectivity in intramolecular Borono-Mannich reactions: synthesis of conduramines. Org Lett 2012; 14:544-7. [PMID: 22217115 DOI: 10.1021/ol203162s] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
An unprecedented intramolecular Petasis condensation provides a novel approach to biologically important conduramines. The compounds are produced with an exclusive anti stereoselectivity for the newly created β-amino alcohol motif. The stereochemical outcome of the reaction is opposite to the one usually observed in the intermolecular reaction.
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Affiliation(s)
- Stéphanie Norsikian
- Centre de Recherche de Gif, Institut de Chimie des Substances Naturelles du CNRS, Avenue de la Terrasse, F-91198 Gif-sur-Yvette, France.
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36
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Bodipati N, Peddinti RK. Hypervalent iodine mediated synthesis of carbamate protected p-quinone monoimine ketals and p-benzoquinone monoketals. Org Biomol Chem 2012; 10:4549-53. [DOI: 10.1039/c2ob25089f] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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37
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Monbaliu JCM, Beagle LK, Kovacs J, Zeller M, Stevens CV, Katritzky AR. En route towards α-benzotriazoyl nitroso derivatives. RSC Adv 2012. [DOI: 10.1039/c2ra21311g] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
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38
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Surasani SR, Peddinti RK. Diels–Alder reaction of 4-halogenated masked o-benzoquinones with electron-rich dienophiles. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2011.06.086] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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39
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Liang H, Ciufolini MA. Oxidative spirocyclization of phenolic sulfonamides: scope and applications. Chemistry 2011; 16:13262-70. [PMID: 20931573 DOI: 10.1002/chem.201001402] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
A full account of the oxidative dearomatization of para- and ortho-phenolic sulfonamides is provided together with an overview of the chemistry of the products and their elaboration to building blocks for spirocyclic alkaloids. A concise total synthesis of putative lepadiformine complements the discussion.
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Affiliation(s)
- Huan Liang
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC V6T 1Z1, Canada
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40
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Ahmad S, Thomas LH, Sutherland A. Stereoselective synthesis of polyhydroxylated aminocyclohexanes. Org Biomol Chem 2011; 9:2801-8. [DOI: 10.1039/c0ob00619j] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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41
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Stephenson GR, Balfe AM, Hughes DL, Kelsey RD. Decomplexation–nitroso Diels–Alder (NDA) approach to C,D-ring functionalisation for hippeastrine. Tetrahedron Lett 2010. [DOI: 10.1016/j.tetlet.2010.09.118] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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