Isoxazolodihydropyridinones: 1,3-Dipolar Cycloaddition of Nitrile Oxides onto 2,4-Dioxopiperidines
摘要:
Practical and efficient methods have been developed for the diversity-oriented synthesis of isoxazolodihydropyridinones via the 1,3-dipolar cycloaddition of nitrile oxides onto 2,4-dioxopiperidines. A select few of these isoxazolodihydropyridinones were further elaborated with triazoles by copper-catalyzed azide-alkyne cycloaddition reactions. A total of 70 compounds and intermediates were synthesized and analyzed for drug likeness. Sixty-four of these novel compounds were submitted to the NIH Molecular Libraries Small Molecule Repository for high-throughput biological screening.
Isoxazolodihydropyridinones: 1,3-Dipolar Cycloaddition of Nitrile Oxides onto 2,4-Dioxopiperidines
摘要:
Practical and efficient methods have been developed for the diversity-oriented synthesis of isoxazolodihydropyridinones via the 1,3-dipolar cycloaddition of nitrile oxides onto 2,4-dioxopiperidines. A select few of these isoxazolodihydropyridinones were further elaborated with triazoles by copper-catalyzed azide-alkyne cycloaddition reactions. A total of 70 compounds and intermediates were synthesized and analyzed for drug likeness. Sixty-four of these novel compounds were submitted to the NIH Molecular Libraries Small Molecule Repository for high-throughput biological screening.
Orthogonally Protected Thiazole and Isoxazole Diamino Acids: An Efficient Synthetic Route
作者:Jeffrey D. Butler、Keith C. Coffman、Kristin T. Ziebart、Michael D. Toney、Mark J. Kurth
DOI:10.1002/chem.201001492
日期:——
An efficient strategy has been developed for the synthesis of heteroaromatic amino acids (HAAs). These methods generate mono‐ or orthogonally protected diamino acidsfrom β‐amino acids (see scheme). Their synthetic reliability and biological potential was demonstrated through the synthesis of an anthranilate synthase (AS) and isochorismate synthase (IS) inhibitor with improved potency.