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Volumn , Issue 20, 1998, Pages 3485-3492

Asymmetric synthesis of alkaloid (-)-(2S,4S) SS 20846 A and its C-4 epimer

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EID: 33748480356     PISSN: 0300922X     EISSN: None     Source Type: Journal    
DOI: 10.1039/a804288h     Document Type: Article
Times cited : (18)

References (49)
  • 15
    • 33748500724 scopus 로고    scopus 로고
    • this cyclization process has been successfully applied in the alkaloid field, see ref. 1a
    • (b) this cyclization process has been successfully applied in the alkaloid field, see ref. 1a.
  • 20
    • 0002687698 scopus 로고
    • This TLC method has been extensively used and has proven itself to be very reliable, see: A. Teniou, L. Toupet and R. Grée, Synlett, 1991, 195 and references cited therein.
    • (1991) Synlett , pp. 195
    • Teniou, A.1    Toupet, L.2    Grée, R.3
  • 23
    • 0001692739 scopus 로고    scopus 로고
    • Since our preliminary report, extensive studies on the use of MTPA amides for the assignment of amine configuration have been published: see T. R. Hoye and M. K. Renner, J. Org. Chem., 1996, 61, 2056 and 8489.
    • (1996) J. Org. Chem. , vol.61 , pp. 2056
    • Hoye, T.R.1    Renner, M.K.2
  • 30
    • 0030040290 scopus 로고    scopus 로고
    • A lot of complexes has been resolved by several methods including fractional recrystallization or chromatographic separation of preformed diastereomers: for leading references see: (a) J. Howell, M. Palin, P. O'Leary, S. Top and G. Jaouen, Tetrahedron: Asymmetry, 1996, 7, 307;
    • (1996) Tetrahedron: Asymmetry , vol.7 , pp. 307
    • Howell, J.1    Palin, M.2    O'Leary, P.3    Top, S.4    Jaouen, G.5
  • 36
    • 0030013956 scopus 로고    scopus 로고
    • A multistep procedure involving transacetalization of the dioxolane to a dithiane and subsequent deprotection has been proposed, see: I. Lopez, A. Diez and M. Rubiralta, Tetrahedron, 1996, 52, 8581.
    • (1996) Tetrahedron , vol.52 , pp. 8581
    • Lopez, I.1    Diez, A.2    Rubiralta, M.3
  • 37
    • 0026508803 scopus 로고
    • Retro Michael ring opening leading to the corresponding enones has been observed in some cases. These enones usually recyclize spontaneously to regenerate piperidones but this mechanism leads to racemization at the C-2 position, see: M. Rubiralta, A. Diez, C. Vila, J. L. Bettiol, Y. Troin and M. E. Sinibaldi, Tetrahedron Lett., 1992, 33, 1233.
    • (1992) Tetrahedron Lett. , vol.33 , pp. 1233
    • Rubiralta, M.1    Diez, A.2    Vila, C.3    Bettiol, J.L.4    Troin, Y.5    Sinibaldi, M.E.6
  • 46
    • 0040530177 scopus 로고
    • QCPE no 455, Department of Chemistry, Indiana University
    • MOPAC, ver. 6.0, QCPE no 455, Department of Chemistry, Indiana University, 1990.
    • (1990) MOPAC, Ver. 6.0


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.