Table 2: Preparation of propargyl esters of amino acids.

EntryAmino acidAmino propargyl esterYielda (%)

1H-Ala-OH854952.table.002-172
2H-Gly-OH854952.table.002-269
3H-leu-OH854952.table.002-376
4H-Pro-OH854952.table.002-471
5H-Ser-OH854952.table.002-570
6H-Phe-OH854952.table.002-676
7H-Glu-OH854952.table.002-762
8H-Thr-OH854952.table.002-869
94-ABA854952.table.002-988
103-ABA854952.table.002-1090

aThe yields reported are of pure compounds isolated after multiple washings with diethyl ether.