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Volumn 133, Issue 17, 2011, Pages 6549-6552

Enantioselective total synthesis of (+)-gliocladine C: Convergent construction of cyclotryptamine-fused polyoxopiperazines and a general approach for preparing epidithiodioxopiperazines from trioxopiperazine precursors

Author keywords

[No Author keywords available]

Indexed keywords

ENANTIOSELECTIVE TOTAL SYNTHESIS; GENERAL APPROACH; NATURAL PRODUCTS; PYRROLIDINE RINGS; QUATERNARY CARBON; STEREOCENTERS; TOTAL SYNTHESIS;

EID: 79955369063     PISSN: 00027863     EISSN: 15205126     Source Type: Journal    
DOI: 10.1021/ja201789v     Document Type: Article
Times cited : (151)

References (51)
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    • Reference 4a-4c
    • Reference 4a-4c
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    • The Movassaghi group recently disclosed a strategy for the introduction of multiple sulfur atoms that culminated in the total synthesis of the dimeric epitri- and epitetradioxopiperazine alkaloids (+)-chaetocin C and (+)-11,11′-dideoxychetracin A, respectively. See
    • The Movassaghi group recently disclosed a strategy for the introduction of multiple sulfur atoms that culminated in the total synthesis of the dimeric epitri- and epitetradioxopiperazine alkaloids (+)-chaetocin C and (+)-11,11′-dideoxychetracin A, respectively. See: Kim, J.; Movassaghi, M. J. Am. Chem. Soc. 2010, 132, 14376-14378
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    • Cytotoxicity against methicillin-resistant Staphylococcus aureus and quinolone-resistant S. aureus and nematicidal activity have been reported for the gliocladines. (13)
    • Cytotoxicity against methicillin-resistant Staphylococcus aureus and quinolone-resistant S. aureus and nematicidal activity have been reported for the gliocladines. (13)
  • 26
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    • Gliocladin C was recently isolated from a terrestrial fungus. See
    • Gliocladin C was recently isolated from a terrestrial fungus. See: Bertinetti, B. V.; Rodriguez, M. A.; Godeas, A. M.; Cabrera, G. M. J. Antibiot. 2010, 63, 681-683
    • (2010) J. Antibiot. , vol.63 , pp. 681-683
    • Bertinetti, B.V.1    Rodriguez, M.A.2    Godeas, A.M.3    Cabrera, G.M.4
  • 27
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    • The numbering system for gliocladine C used by Zhang and co-workers (13) has been employed. For a discussion of the various positional numbering systems used in this area, see p S3 of ref 9.
    • The numbering system for gliocladine C used by Zhang and co-workers (13) has been employed. For a discussion of the various positional numbering systems used in this area, see p S3 of ref 9.
  • 28
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    • For the reverse approach wherein the dielectrophile is achiral and the dinucleophile chiral, see ref 8b.
    • For the reverse approach wherein the dielectrophile is achiral and the dinucleophile chiral, see ref 8b.
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    • For pioneering studies of asymmetric carboxyl migrations of oxindole-derived enoxycarbonates, see
    • For pioneering studies of asymmetric carboxyl migrations of oxindole-derived enoxycarbonates, see: Hills, I. D.; Fu, G. C. Angew. Chem., Int. Ed. 2003, 42, 3921-3924
    • (2003) Angew. Chem., Int. Ed. , vol.42 , pp. 3921-3924
    • Hills, I.D.1    Fu, G.C.2
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    • 3-Hydroxy-3,3′-biindolin-2-one (15) was prepared in 75% yield from the reaction of isatin and indole. See
    • 3-Hydroxy-3,3′-biindolin-2-one (15) was prepared in 75% yield from the reaction of isatin and indole. See: Bergman, J. Acta Chem. Scand. 1971, 25, 1277-1280
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    • Bergman, J.1
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    • 4) to afford the 3-hydroxymethyl-2-hydroxyindoline intermediates. However, these reactions resulted in partial racemization of the quaternary carbon stereocenter, presumably at the stage of a 3-formyl-2-hydroxyindoline intermediate. See
    • 4) to afford the 3-hydroxymethyl-2-hydroxyindoline intermediates. However, these reactions resulted in partial racemization of the quaternary carbon stereocenter, presumably at the stage of a 3-formyl-2-hydroxyindoline intermediate. See: Dmitrienko, G. I.; Denhart, D.; Mithani, S.; Prasad, G. K. B.; Taylor, N. J. Tetrahedron Lett. 1992, 33, 5705-5708
    • (1992) Tetrahedron Lett. , vol.33 , pp. 5705-5708
    • Dmitrienko, G.I.1    Denhart, D.2    Mithani, S.3    Prasad, G.K.B.4    Taylor, N.J.5
  • 40
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    • This intermediate was readily prepared from glycine N -methylamide hydrochloride (see the Supporting Information for details).
    • This intermediate was readily prepared from glycine N -methylamide hydrochloride (see the Supporting Information for details).
  • 42
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    • 3)
    • 3).
  • 43
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    • These data have been deposited at The Cambridge Crystallographic Data Centre as entry CCDC 814556 and can be obtained free of charge via
    • These data have been deposited at The Cambridge Crystallographic Data Centre as entry CCDC 814556 and can be obtained free of charge via www.ccdc.cam.ac.uk/data-request/cif.
  • 46
    • 79955419978 scopus 로고    scopus 로고
    • 2PHAL] were added, as dihydroxylation of this hindered double bond is slow.
    • 2PHAL] were added, as dihydroxylation of this hindered double bond is slow.
  • 47
    • 79955445563 scopus 로고    scopus 로고
    • After purification, this product contained ∼5% β-diol.
    • After purification, this product contained ∼5% β-diol.
  • 49
    • 79955418010 scopus 로고    scopus 로고
    • The relative configuration of this product was confirmed by single-crystal X-ray diffraction of the corresponding racemate. These data have been deposited at The Cambridge Crystallographic Data Centre as entry CCDC 814557 and can be obtained free of charge via
    • The relative configuration of this product was confirmed by single-crystal X-ray diffraction of the corresponding racemate. These data have been deposited at The Cambridge Crystallographic Data Centre as entry CCDC 814557 and can be obtained free of charge via www.ccdc.cam.ac.uk/data-request/ cif.
  • 50
    • 79955395783 scopus 로고    scopus 로고
    • Preparation of gliocladine C directly from diol precursor 25 was problematic because of the acid sensitivity of C11-hydroxylated pyrrolidinoindolines. (12)
    • Preparation of gliocladine C directly from diol precursor 25 was problematic because of the acid sensitivity of C11-hydroxylated pyrrolidinoindolines. (12)


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