Enantioselective Synthesis of the ABC-Tricyclic Core of Phomactin A by a γ‑Hydroxylation Strategy
- Publication date
- 2015
- Publisher
Abstract
An enantioselective synthesis of
the ABC-tricyclic furanochroman
core of phomactin A has been accomplished by a γ-hydroxylation
approach. The C ring was established by γ-hydroxylation of an
α-enone. The regioselectivity was optimized by using a strong
base with an oxophilic cation (<i>t-</i>BuLi) and a bulky
oxygen donor (Davis reagent), which afforded the γ-hydroxylation
product selectively in 63% yield