Total Synthesis of Dinophysistoxin-2 and 2-epi-Dinophysistoxin-2 and Their PPase Inhibition
作者:Yucheng Pang、Chao Fang、Michael J. Twiner、Christopher O. Miles、Craig J. Forsyth
DOI:10.1002/anie.201101741
日期:2011.8.8
The first total syntheses of the title compounds highlight novel assemblies of the C1–C14 and C28–C38 domains, including an unexpected diastereoselectivity in the Sharpless asymmetric dihydroxylation of an alkene at C1C2. PPase inhibition assays revealed that 2‐epi‐DTX‐2 is at least 1 to 2 orders of magnitude less potent than DTX‐2, thus indicating that the configuration at C2 in DTX‐2 is crucial
标题化合物的第一个总合成突显了C1-C14和C28-C38结构域的新颖组装,包括在C1C2处烯烃的Sharpless不对称二羟基化反应中出乎意料的非对映选择性。PPase抑制试验表明,2 - epi -DTX-2的效力比DTX-2至少低1至2个数量级,因此表明DTX-2中C2的构型对于有效抑制至关重要(见图)。