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  • Anticancer compounds  (1)
  • Epoxidations  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Liebigs Annalen 1998 (1998), S. 745-757 
    ISSN: 1434-193X
    Keywords: Asymmetric synthesis ; Enzyme catalysis ; Lipases ; Epoxidations ; Chiral building blocks ; Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Asymmetrized tris(hydroxymethyl)methane (THYM*) is a new chiral building block easily accessible in both enantiomeric forms by a chemoenzymatic methodology. The presence of three synthetically equivalent masked hydroxymethyl groups and a high degree of latent symmetry (C3v) makes this synthon very versatile in synthetic applications. This review describes its preparation and a series of elaborations (with particular enphasis on the diastereoselective generation of additional chiral centers) leading to advanced intermediated for the preparation of biologically active compounds.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Liebigs Annalen 1998 (1998), S. 1543-1548 
    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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