The C15–C25 upper THP segment 2 of (+)-lasonolide A has been synthesized efficiently via diastereomeric differentiation, iodocyclization and Julia–Kocieński's sulfone olefination to install its quaternary chiral center, cis-2,6-disubstituted THP and trans-olefin, respectively.
通过非对映异构分化,
碘环化和Julia–Kocieński的砜烯烃聚合反应,可以有效合成(+)-Lasonolide A的C 15 –C 25上THP片段2,以安装其季手性中心,顺式-2,6-二取代的THP和反式-烯烃。