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Volumn 45, Issue 18, 2004, Pages 3621-3624

Bergman cycloaromatization of imidazole-fused enediynes: The remarkable effect of N-aryl substitution

Author keywords

[No Author keywords available]

Indexed keywords

ALKENYLDIALKYNE DERIVATIVE; ALKYL GROUP; IMIDAZOLE DERIVATIVE; NATURAL PRODUCT; PHENYL GROUP; POLYCYCLIC AROMATIC HYDROCARBON DERIVATIVE; UNCLASSIFIED DRUG;

EID: 1842686348     PISSN: 00404039     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.tetlet.2004.02.152     Document Type: Article
Times cited : (25)

References (29)
  • 4
    • 0003815528 scopus 로고
    • D.B. Borders, & T.W. Doyle. New York: Marcel Dekker
    • Borders D.B., Doyle T.W. Enediyne Antibiotics as Antitumor Agents. 1995;Marcel Dekker, New York.
    • (1995) Enediyne Antibiotics As Antitumor Agents
  • 17
    • 1842745814 scopus 로고    scopus 로고
    • Masters Thesis, Brigham Young University, Provo, UT
    • (a) Zhao, Z. Masters Thesis, Brigham Young University, Provo, UT, 2003.
    • (2003)
    • Zhao, Z.1
  • 19
    • 1842645099 scopus 로고    scopus 로고
    • note
    • Theoretical calculations indicate that the energy barrier for imidazolium-fused enediynes is 2.8 kcal/mol greater than for the corresponding imidazole-fused enediyne (see Ref. [7b]).
  • 20
    • 1842796309 scopus 로고    scopus 로고
    • note
    • 2] = 200.1314).
  • 23
    • 1842645096 scopus 로고    scopus 로고
    • note
    • 1H NMR. Integrations for resonances specific to the starting material were compared to resonances specific to the products or anthracene as an internal standard.
  • 24
    • 1842645097 scopus 로고    scopus 로고
    • note
    • Molecular modeling calculations were performed using MacSpartan Pro, Wave Function, Inc. Monte Carlo conformational searches employed MMFF94 parameters, and geometry optimizations were performed at the semi-empirical level (PM3).
  • 25
    • 1842695435 scopus 로고    scopus 로고
    • note
    • Similar dihedral angles have been reported for 3-aryl substituted ( Z ) 3-ene-1,5-hexadiynes (see Ref. [7b]).
  • 29
    • 1842695434 scopus 로고    scopus 로고
    • note
    • 1=0.0515 for [ I>2s(I) ]. Crystallographic data (excluding structure factors) have been deposited with the Cambridge Crystallographic Data Centre as supplementary publication number CCDC 2317SH. Copies of the data can be obtained, free of charge, on application to CCDC, 12 Union Road, Cambridge CB2 1EZ, UK [fax: +44(0)-1223-336033 or email: deposit@ccdc.cam.ac.uk ].


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.