Facile Synthesis of Naphthoquinone Spiroketals by Diastereoselective Oxidative [3 + 2] Cycloaddition
作者:Kun-Liang Wu、Stephanie Wilkinson、Norbert O. Reich、Thomas R. R. Pettus
DOI:10.1021/ol702450d
日期:2007.12.1
highly selective oxidative [3 + 2] cycloaddition of chiral enol ethers and hydroxynaphthoquinone is described. This convergent strategy is amenable to an enantioselective synthesis of beta-rubromycin and related naphthoquinone spiroketals. Several compounds were found to inhibit DNA-polymerase and telomerase in a manner resembling alpha-rubromycin and beta-rubromycin.
描述了手性烯醇醚和羟基萘醌的高选择性氧化[3 + 2]环加成反应。这种收敛策略适合β-红霉素和相关萘醌螺缩酮的对映选择性合成。发现几种化合物能够以类似于 α-红博霉素和 β-红博霉素的方式抑制 DNA 聚合酶和端粒酶。
Total Synthesis of (±)-γ-Rubromycin on the Basis of Two Aromatic Pummerer-Type Reactions
作者:Shuji Akai、Keisuke Kakiguchi、Yuka Nakamura、Ikumi Kuriwaki、Toshifumi Dohi、Shusaku Harada、Ozora Kubo、Nobuyoshi Morita、Yasuyuki Kita