11-Step Total Synthesis of (-)-Maoecrystal V.

J Am Chem Soc

Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States.

Published: August 2016

An expedient, practical, and enantioselective route to the highly congested ent-kaurane diterpene maoecrystal V is presented. This route, which has been several years in the making, is loosely modeled after a key pinacol shift in the proposed biosynthesis. Only 11 steps, many of which are strategic in that they build key skeletal bonds and incorporate critical functionalities, are required to access (-)-maoecrystal V. Several unique and unexpected maneuvers are featured in this potentially scalable pathway. Reevaluation of the biological activity calls into question the initial exuberance surrounding this natural product.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4974602PMC
http://dx.doi.org/10.1021/jacs.6b06623DOI Listing

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