A Novel Synthesis of (<i>R</i>)- and (<i>S</i>)-4-Hydroxytetrahydrofuran-2-ones
作者:Akira Tanaka、Kyohei Yamashita
DOI:10.1055/s-1987-28008
日期:——
A practical synthesis of (R)- and (S)-4-hydroxytetrahydrofuran-2-ones is accomplished starting from L-ascorbic acid and D-isoascorbic acid, respectively.
(R)-和(S)-4-羟基四氢呋喃-2-酮的实际合成分别以L-抗坏血酸和D-异抗坏血酸为原料完成。
Synthetic Study on Top-Half (C<sub>14</sub>-C<sub>25</sub>) Fragment of Amphidinolide B, a 26-Membered Macrolide
作者:Katsuhide Ohi、Shigeru Nishiyama
DOI:10.1055/s-1999-2697
日期:1999.5
The top-half fragment (C14-C25) of amphidinolide B, a potent cytotoxic macrolide isolated from the marine dinoflagellate Amphidinium sp., has been synthesized using a coupling reaction of iodide 16 corresponding to the C14-C19 part and α,β-unsaturated dithioacetal 9 possessing the remaining carbon framework (C20-C25) as the key step.
蚜虫内酯 B 是一种从海洋甲藻蚜虫中分离出来的强效细胞毒性大环内酯,其上半部分片段(C14-C25)的合成是以 C14-C19 部分对应的碘化物 16 和具有剩余碳框架(C20-C25)的δ,δ-不饱和二硫代乙醛 9 的偶联反应为关键步骤的。