Davenport MT, Dickson JA, Johnson MR, Chamberland S. Total Synthesis of Clavatadine B.
JOURNAL OF NATURAL PRODUCTS 2019;
82:3191-3195. [PMID:
31692341 DOI:
10.1021/acs.jnatprod.9b00813]
[Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The first total synthesis of clavatadine B (2), a natural product found to be a selective human blood coagulation factor XIa inhibitor, is described. A convergent approach that exemplifies the advantages of direct, early stage guanidinylation provided an immediate clavatadine B precursor, which was assembled in an efficient manner using known synthetic precursors of the structurally related natural product clavatadine A (1). Global deprotection cleanly provided clavatadine B in only four steps from a known derivative of homogentisic acid lactone (longest linear sequence, 75% overall yield).
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