1-Thioglycopyranosyl Esters of N-Acylamino Acids |
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| Authors: | Burdica Ljevakovi? Jaroslav Horvat Branimir Klai? Srdanka Tomi? |
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| Institution: | Department of Organic Chemistry and Biochemistry “Ruder, Bo?kovi?” Institute , 41000, Zagreb, Yugoslavia |
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| Abstract: | Abstract Fully protected 1-thioglycopyranosyl esters of N-acylamino acids (5, 6, and 7) were prepared by condensation of methyl 2, 3, 4-tri-O-acetyl-1-thio-β-d–glucopyranuronate (1), 2, 3, 4-tri-O-acetyl-1-thio-l–arabinopyranose (2), and 2, 3, 4-tri-O-acetyl-1-thio-D-arabinopyranose (3) with pentachlorophenyl esters of N-acylamino acids in the presence of imidazole. The 13C NMR chemical shifts of the starting 1-thio sugars and the 1-thiol ester products are reported. |
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