A Transannular Rearrangement Reaction of a Pyrroloindoline Diketopiperazine.
Qiao YanPatrick J CarrollMichael R GauJeffrey D WinklerMadeleine M JoulliéPublished in: Organic letters (2019)
Oxaline, glandicoline, and meleagrin contain a unique triazaspirocyclic structure. Attracted by their biological activities, we attempted a novel strategy, mimicking a proposed biosynthetic pathway for glandicoline B in Penicillium chrysogenum and Penicillium oxalicum and using a transannular rearrangement to the desired triazaspirocycle 15.
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