methyl 2-[[(2S)-2-[(2-methylpropan-2-yl)oxycarbonylamino]propanoyl]amino]acetate

Conditions: temp:0.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: Boc-Ala-Gly-OMe [10 g, 45 mmoles, described by H. U. Immer et al., Helv. Chim. Acta, 57, 730 (1974)] is dissolved in cold (ice bath) trifluoroacetic acid (100 ml). The solution is stirred for 1 hr at 0° C and the solvent evaporated. The residue is dissolved in methanol, added to diethyl ether and the precipitate collected to yield the title compound. the solvent evaporated The residue is dissolved in methanol added to diethyl ether the precipitate collected