Total Synthesis of Bistramide A and Its 36(
<i>Z</i>
) Isomers: Differential Effect on Cell Division, Differentiation, and Apoptosis
作者:Loïc Tomas、Gustav Boije af Gennäs、Marie Aude Hiebel、Peter Hampson、David Gueyrard、Béatrice Pelotier、Jari Yli‐Kauhaluoma、Olivier Piva、Janet M. Lord、Peter G. Goekjian
DOI:10.1002/chem.201102462
日期:2012.6.11
The total synthesis of bistramide A and its 36(Z),39(S) and 36(Z),39(R) isomers shows that these compounds have different effects on cell division and apoptosis. The synthesis relies on a novel enol ether‐forming reaction for the spiroketal fragment, a kinetic oxa‐Michael cyclization reaction for the tetrahydropyran fragment, and an asymmetric crotonylation reaction for the amino acid fragment. Preliminary
Bistramide A及其36(Z),39(S)和36(Z),39(R)异构体的总合成表明,这些化合物对细胞分裂和凋亡具有不同的作用。合成依赖于螺环酮片段的新型烯醇醚形成反应,四氢吡喃片段的动力学oxa-Michael环化反应以及氨基酸片段的不对称巴豆酰化反应。初步的生物学研究表明,三种化合物各自对HL-60细胞的细胞分裂,分化和凋亡具有明显的影响模式,因此表明这些作用是天然产物的独立活动。