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Syntheses of structurally diverse amino acids, including δ-hydroxylysine, using the acyl nitroso Diels–Alder reaction

✍ Scribed by Lee Bollans; John Bacsa; Daniel A. O’Farrell; Scott Waterson; Andrew V. Stachulski

Publisher: Elsevier Science
Year: 2010
Tongue: French
Weight: 553 KB
Volume: 51
Category: Article
ISSN: 0040-4039
DOI: 10.1016/j.tetlet.2010.02.076

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✦ Synopsis

By virtue of its ability to introduce amino and hydroxy functionalities in a 1,4-relationship with fully controlled relative stereochemistry, the acyl nitroso Diels-Alder (ANDA) reaction is ideally suited to the synthesis of structurally diverse, including hydroxylated, amino acids. The major issue to be tackled is that of regiochemistry in the ANDA addition to unsymmetrical dienes. The transformation of three diverse types of ANDA adducts into amino acids is described, in particular, the synthesis of d-hydroxylysine, an important constituent of collagen, as a single (2SR, 5SR) diastereoisomer in protected form.

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✍ Lee Bollans; John Bacsa; Daniel J. O’Farrell; Scott Waterson; Andrew V. Stachuls 📂 Article 📅 2010 🏛 Elsevier Science 🌐 French ⚖ 100 KB