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[摘要]: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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