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Volumn 38, Issue 51, 1997, Pages 8815-8818

Total syntheses of diterpenoids (±)-verrucosan-2β-ol, (±)-neoverrucosan-5β-ol, and (±)-homoverrucosan-5β-ol. An approach to the synthesis of the sesterterpenoid variecolin

Author keywords

[No Author keywords available]

Indexed keywords

DITERPENOID; UNCLASSIFIED DRUG; VARIECOLIN; VERRUCOSAN DERIVATIVE;

EID: 0030832679     PISSN: 00404039     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0040-4039(97)10507-X     Document Type: Article
Times cited : (21)

References (35)
  • 9
    • 0343621685 scopus 로고    scopus 로고
    • note
    • 8 (2 equiv.) to a suspension of CuCN (1 equiv.) in dry THF (-78 °C, with brief warming to -48 °C, if necessary).
  • 13
    • 0343621684 scopus 로고    scopus 로고
    • note
    • 13C NMR) in accord with assigned structures and gave satisfactory elemental analyses and/or molecular mass determinations (HRMS).
  • 18
    • 0342751436 scopus 로고    scopus 로고
    • note
    • Since the chromatographic separation of 10 and 11 was quite difficult, the yield of pure 11 varied somewhat from experiment to experiment However, mixed fractions could easily be recycled.
  • 19
    • 0343621683 scopus 로고    scopus 로고
    • note
    • 2, r.t) of this alcohol with Me2(/-Bu)SiCl in the presence of imidazole gave the required iodide in 78% overall yield.
  • 22
    • 0342751434 scopus 로고    scopus 로고
    • note
    • Studies directed toward the synthesis of 1 are in progress.
  • 28
    • 0342316679 scopus 로고    scopus 로고
    • note
    • 2O was added to the resultant ethanol solution of 21. Not unexpectedly, concentration of solutions of 21 resulted in dimerization of this material.
  • 31
    • 0342316678 scopus 로고    scopus 로고
    • note
    • The epimer of 23, produced in 26% yield, could be separated from 23 by silica gel chromatography.
  • 33
    • 0343186093 scopus 로고    scopus 로고
    • note
    • 13C NMR spectra of 6 and 7.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.