Access to C-protected β-amino-aldehydes via transacetalization of 6-alcoxy tetrahydrooxazinones and use for pseudo-peptide synthesis

Autor: Robert Dhal, Pavlo Shpak-Kraievskyi, Biaolin Yin, Mathieu Y. Laurent, Arnaud Martel, Gilles Dujardin
Přispěvatelé: Unité de chimie organique moléculaire et macromoléculaire (UCO2M), Le Mans Université (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)
Jazyk: angličtina
Rok vydání: 2012
Předmět:
Zdroj: Tetrahedron
Tetrahedron, Elsevier, 2012, 68 (9), pp.2179-2188. ⟨10.1016/j.tet.2012.01.002⟩
ISSN: 0040-4020
DOI: 10.1016/j.tet.2012.01.002⟩
Popis: Efficient access to masked β-amino-aldehydes was performed starting from 6-alcoxy tetrahydrooxazinone 6a–d (6-ATO). Transacetalization leads to the opening of the cycle to form either unsymmetric acetal 7 or symmetric acetals 16–18. These amino acetals are key compounds, obtained with 99% ee, which can be engaged in efficient peptide coupling. This method could easily provide peptides aldehydes or small amido aldehydes as exemplified with the formal synthesis of ent-Maraviroc.
Databáze: OpenAIRE