Olma, Polish Journal of Chemistry, 2004, vol. 78, # 6, p. 831 - 835
作者:Olma
DOI:——
日期:——
An efficient synthesis of optically pure α-alkyl-β-azido- and α-alkyl-β-aminoalanines via ring opening of 3-amino-3-alkyl-2-oxetanones
作者:Adam Kudaj、Aleksandra Olma
DOI:10.1016/j.tetlet.2007.07.078
日期:2007.9
N-Boc-α-alkylserine β-lactones on ring opening with sodium azide provide N-Boc-α-alkyl-β-azidoalanines, as N-protected amino acids are suitable for direct incorporation into peptides. N-Boc-α-alkyl-β-azidoalanines can be transformed by catalytic hydrogenation into the corresponding N-Boc-α-alkyl-β-aminoalanines.
An efficient synthesis of optically active 3-amino-3-alkyl-2-oxetanones
作者:Aleksandra Olma、Adam Kudaj
DOI:10.1016/j.tetlet.2005.07.058
日期:2005.9
An efficient two-step synthesis of p-toluenesulfonic acid salts of opticallyactive 3-amino-3-alkyl-2-oxetanones is reported that involves cyclization of N-Boc-α-alkylserines under Mitsunobu reaction conditions followed by deprotection of the amino group with trifluoroacetic acid in the presence of anhydrous p-toluenesulfonic acid.