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  • 1
    Electronic Resource
    Electronic Resource
    Synthesis of N-Fused “Lactendiynes” (1998)
    Weinheim : Wiley-Blackwell
    Liebigs Annalen 1998 (1998), S. 1543-1548 
    Details
    ISSN: 1434-193X
    Keywords: Enediynes ; β-Lactams ; Cycloaromatization ; Anticancer compounds ; Lactendiynes ; Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: New “lactendiynes”, characterized by the fusion at C-4 and N-1 of a β-lactam with a hydroxylated 10-membered cyclic enediyne, were synthesized. Studies on their reactivity have shown that this type of fusion with the azetidinone represents a sufficient “safety-catch” against cycloaromatization. These compounds are relatively reactive toward basic hydrolysis, affording monocyclic enediynes which undergo fast cycloaromatization at room temperature.
    Type of Medium: Electronic Resource
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    Paper (German National Licenses)
  • 2
    Electronic Resource
    Electronic Resource
    New Approach to β-Lactam-Fused Enediynes (“Lactenediynes”) by Stereoselective Pinacol Coupling (2000)
    Weinheim : Wiley-Blackwell
    Liebigs Annalen 2000 (2000), S. 939-946 
    Details
    ISSN: 1434-193X
    Keywords: Enediynes ; Vanadium ; C-C coupling ; Macrocycles ; Lactams ; Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: ---A short synthesis of unfunctionalized lactenediyne 3 by closure of the ten-membered ring at the double bond site is reported. After failure of the known methodologies, this closure was eventually successfully achieved thanks to a highly stereoselective, vanadium(II)-mediated pinacol coupling of bis(alk-2-ynal) 7.Supporting information for this article is available on the WWW under //http://www.wiley-vch.de/contents/jc_2046/2000/99471_s.pdf or from the author.
    Type of Medium: Electronic Resource
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    Paper (German National Licenses)
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