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Synthesis of Trachelanthamidine, Supinidine and the core of stenineWu, Dong-Ciao 17 July 2006 (has links)
Base-induced coupling-cyclization stepwise [3+2] annulation of
£\-sulfonylacetamide with (Z)-2-bromoacrylate yielded the polysubsti-
tuted pyroglutamate with three contiguous chiral centers with trans-
trans orientation in a one-pot synthesis. The pyrrolizidine skeleton and
the core of stenine were obtained via the ring-closing metathesis (RCM)
method.This facile strategy was used to synthesize (¡Ó)-trachelantha-
midine, (¡Ó)-supinidine and the core of stenine.
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