A Cope Rearrangement in the Reaction Catalyzed by Dimethylallyltryptophan Synthase?

Louis Y. P. Luk, Qi Qian, Martin E. Tanner

Journal of the American Chemical Society · 2011 · 78 citations · 35 references

Concepts

Abstract

The enzyme dimethylallyltryptophan synthase catalyzes the "normal" prenylation of Trp at C-4 in the first step of ergot alkaloid biosynthesis. The Lys174Ala mutant is found to produce a hexahydropyrroloindole alkaloid that is "reverse-prenylated" at C-3 as its major product. This is interpreted as evidence in support of a mechanism that involves an initial "reverse-prenylation" at C-3, followed by a Cope rearrangement and rearomatization.

References

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