The totalsynthesis of 5-epi-Torrubiellutin C is described in a fully stereocontrolled manner and linear sequence involving high yielding steps. The synthetic strategy involves the dicyclohexylboron chloride mediated Paterson's aldol protocol, Horner–Emmons olefination, TiCl4 mediated syn-aldol reaction and ring closing metathesis (RCM) as the key steps. Furthermore, the resultant epimer was evaluated
Synthesis of C3–C21 Segment of Aflastatin A Using Remote Asymmetric Induction Reactions
作者:Sawato Murakoshi、Seijiro Hosokawa
DOI:10.1021/acs.orglett.8b04008
日期:2019.2.1
was constructed in seven steps including the stereoselective vinylogous Mukaiyama alkylation, while the C9–C15 segment and the C16–C21 segment were synthesized using the vinylogous Mukaiyama aldol reaction in seven and eight steps, respectively.