Nicolaou KC, Shi L, Lu M, Pattanayak MR, Shah AA, Ioannidou HA, Lamani M. Total synthesis of myceliothermophins C, D, and E.
Angew Chem Int Ed Engl 2014;
53:10970-4. [PMID:
25163463 DOI:
10.1002/anie.201406815]
[Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2014] [Indexed: 11/08/2022]
Abstract
The total synthesis of cytotoxic polyketides myceliothermophins E (1), C (2), and D (3) through a cascade-based cyclization to form the trans-fused decalin system is described. The convergent synthesis delivered all three natural products through late-stage divergence and facilitated unambiguous C21 structural assignments for 2 and 3 through X-ray crystallographic analysis, which revealed an interesting dimeric structure between its enantiomeric forms.
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