Total synthesis of heronapyrrole C.

Org Lett

School of Chemical Sciences, The University of Auckland, 23 Symonds St., Auckland 1000, New Zealand.

Published: January 2014

A flexible total synthesis of the 2-nitropyrrole-derived marine natural product, (+)-heronapyrrole C, is reported. The approach is based on regioselective access to key building blocks containing the rare 4-substituted 2-nitropyrrole motif. Sharpless asymmetric epoxidation and dihydroxylation and a Shi epoxidation were used to introduce the five stereogenic centers of the bis-THF-diol side chain. The N-benzoyloxymethyl (Boz) protecting group was crucial for functionalization of the 2-nitropyrrole moiety and enabling final deprotection under mild conditions.

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http://dx.doi.org/10.1021/ol403246jDOI Listing

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