Pérez-Palau M, Balaguer-Garcia E, Romea P, Urpí F. Optimized Asymmetric Synthesis of Umuravumbolide.
ACS OMEGA 2022;
7:30835-30840. [PMID:
36092614 PMCID:
PMC9453790 DOI:
10.1021/acsomega.2c02304]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Accepted: 08/04/2022] [Indexed: 06/15/2023]
Abstract
Herein, the asymmetric synthesis of umuravumbolide (1) is described. The new approach features highly stereoselective transformations (dr ≥ 95:5) to install both stereocenters and the Z olefin, which involve a new radical alkylation, an Ando olefination, and a Krische allylation on a Z allylic alcohol, not reported before. The application of such successful reactions, together with the limited use of protecting groups and concession steps, makes it possible to complete the synthesis in 10 steps, resulting in a 39% overall yield from chiral N-acyl oxazolidinone 2.
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