Chaume G, Barbeau O, Lesot P, Brigaud T. Synthesis of 2-trifluoromethyl-1,3-oxazolidines as hydrolytically stable pseudoprolines.
J Org Chem 2010;
75:4135-45. [PMID:
20481551 DOI:
10.1021/jo100518t]
[Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Trifluoromethyl group containing oxazolidines (Fox) are conveniently synthesized by condensation of serine esters with trifluoroacetaldehyde hemiacetal or trifluoroacetone. These oxazolidines can undergo N-acylation and amidification reactions and are completely configurationally and hydrolytically stable. Therefore, they can be considered as highly valuable proline surrogates (Tfm-pseudoprolines).
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