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Volumn 74, Issue 5, 2009, Pages 2213-2216

Highly efficient formal synthesis of cephalotaxine, using the stevens rearrangement-acid lactonization sequence as a key transformation

Author keywords

[No Author keywords available]

Indexed keywords

ALLYL BROMIDES; ANTI-TUMOR ACTIVITIES; CEPHALOTAXINE; FORMAL SYNTHESIS; LACTONIZATION; STRUCTURAL FEATURES;

EID: 64249124471     PISSN: 00223263     EISSN: None     Source Type: Journal    
DOI: 10.1021/jo8025252     Document Type: Article
Times cited : (25)

References (29)
  • 1
    • 77957045995 scopus 로고
    • For reviews see: a, Brossi, A, Ed, Academic Press: New York
    • For reviews see: (a) Huang, L.; Xue, Z. In The Alkaloids: Brossi, A., Ed.; Academic Press: New York, 1984; Vol. 23, pp 157-226.
    • (1984) The Alkaloids , vol.23 , pp. 157-226
    • Huang, L.1    Xue, Z.2
  • 3
    • 77956701129 scopus 로고    scopus 로고
    • Brossi, A, Ed, Academic Press: New York
    • (c) Jalil Miah, M. A.; Hudlicky, T.; Reed, J. W. In The Alkaloids; Brossi, A., Ed.; Academic Press: New York, 1998; Vol. 51, pp 199-269.
    • (1998) The Alkaloids , vol.51 , pp. 199-269
    • Jalil Miah, M.A.1    Hudlicky, T.2    Reed, J.W.3
  • 4
    • 53849122002 scopus 로고    scopus 로고
    • and references cited therein. For a recent total synthesis, see
    • For a recent total synthesis, see: Hameed, A.; Blake, A. J.; Hayes, C. J. J. Org. Chem. 2008, 78, 8045, and references cited therein.
    • (2008) J. Org. Chem , vol.78 , pp. 8045
    • Hameed, A.1    Blake, A.J.2    Hayes, C.J.3
  • 5
    • 0023710154 scopus 로고
    • For possible transformation from 3 to 1 via an alternative pathway, see relevant total synthesis of cephalotaxine: a
    • For possible transformation from 3 to 1 via an alternative pathway, see relevant total synthesis of cephalotaxine: (a) Kuehne, M. E.; Bornmann, W. G.; Parsons, W. R; Spitzer, T. D.; Blount, J. F.; Zubieta, J. J. Org. Chem. 1988, 53, 3439.
    • (1988) J. Org. Chem , vol.53 , pp. 3439
    • Kuehne, M.E.1    Bornmann, W.G.2    Parsons, W.R.3    Spitzer, T.D.4    Blount, J.F.5    Zubieta, J.6
  • 10
    • 0031828105 scopus 로고    scopus 로고
    • Ikeda, M.; Hirose, K.; El, Bialy, S. A. A.; Sato, T.; Yakura, T.; Bayoma, S. M. M. Chem. Pharm. Bull. 1998, 46, 1084.
    • (f) Ikeda, M.; Hirose, K.; El, Bialy, S. A. A.; Sato, T.; Yakura, T.; Bayoma, S. M. M. Chem. Pharm. Bull. 1998, 46, 1084.
  • 18
    • 64249153728 scopus 로고    scopus 로고
    • 3CN, DMSO, rt → reflux (Figure presented)
    • 3CN, DMSO, rt → reflux (Figure presented)
  • 19
    • 64249162877 scopus 로고    scopus 로고
    • 2;. Viscous brown jelly was produced during the course of the following reaction (Figure presented)
    • 2;. Viscous brown jelly was produced during the course of the following reaction (Figure presented)
  • 20
    • 24944434374 scopus 로고    scopus 로고
    • For reported acid-lactonization reaction of γ-en-carboxylate, see: a
    • For reported acid-lactonization reaction of γ-en-carboxylate, see: (a) Amonkar, C. P.; Tuve, S. G.; Parameswaran, P. S. Synthesis 2005, 14, 2341.
    • (2005) Synthesis , vol.14 , pp. 2341
    • Amonkar, C.P.1    Tuve, S.G.2    Parameswaran, P.S.3
  • 26
    • 1342302796 scopus 로고    scopus 로고
    • Considerable difficulty was encountered in finding conditions suitable for the base-catalvzed aldol condensation of keto-aldehvde intermediate. Among the conditions (K2CO3/MeOH, KOH/MeOH, prolini/EtOH, proline/DMSO) examined, the only effective one was the KOtBu/THF system, which furnished the amino spirocvclopentenone 3a. For information on this svstem, see: Freiria, M, Whitehead, A. J, Tocher, D. A, Motherwell. W. B. Tetrahedron 2004, 60, 2673
    • tBu/THF system, which furnished the amino spirocvclopentenone 3a. For information on this svstem, see: Freiria, M.; Whitehead, A. J.; Tocher, D. A.; Motherwell. W. B. Tetrahedron 2004, 60, 2673.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.