11-Step Total Synthesis of (−)-Maoecrystal V
2016; American Chemical Society; Volume: 138; Issue: 30 Linguagem: Inglês
10.1021/jacs.6b06623
ISSN1943-2984
AutoresArtiom Cernijenko, Rune Risgaard, Phil S. Baran,
Tópico(s)Phytochemistry and Biological Activities
ResumoAn 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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