Nshimiyimana R, Serhan CN, Petasis NA. On the Total Synthesis of 7,8(
S,
S)-Epoxy-17(
S)-hydroxy-4(
Z),9(
E),11(
E),13(
Z),15(
E),19(
Z)-docosahexaenoic Acid Derivative.
Molecules 2025;
30:1858. [PMID:
40333920 PMCID:
PMC12029207 DOI:
10.3390/molecules30081858]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2025] [Revised: 04/11/2025] [Accepted: 04/18/2025] [Indexed: 05/09/2025] Open
Abstract
The stereoselective total synthesis of an allylic epoxide-containing polyunsaturated fatty acid, in its triethylsilyl (TES) ether and methyl ester form, is described. Key features include a Sharpless enantioselective epoxidation to install the oxirane unit and Wittig coupling reactions to forge critical alkenyl configuration and secure the core carbon skeleton. The deprotected epoxy acid was recently demonstrated to play a central role as the precursor to biologically active resolvins D1, D2, and the cysteinyl conjugate in tissue regeneration (RCTR1) by human leukocytes. These natural products belong to a family of cell signaling molecules termed specialized pro-resolving mediators (SPMs).
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