Russian Chemical Bulletin p. 1670 - 1679 (1996)
Update date:2022-08-11
Topics:
Zlotin
Sharova
Luk'yanov
Reactions of hydrochlorides of glycine, alanine, phenylalanine, L-isoleucine, and L-valine esters with aromatic and heteroaromatic carboxamides afforded hydrochlorides of the corresponding N-(amidomethyl)-α-amino acid esters. N-(Phthalimidomethyl)-α-amino acid esters were obtained by reactions of α-amino acid esters containing free amino groups with formaldehyde and phthalimide. The 1H NMR studies demonstrated that the chiral centers of α-amino acids may be retained in the course of condensation. Reactions of the Mannich bases obtained and their hydrochlorides with acetic anhydride and tosyl chloride afforded the corresponding N-acyl and N-sulfonyl derivatives.
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