[CH3:1][NH2:2].C(O[C:6](=[O:18])[CH2:7][NH:8][C:9](=[O:17])[CH2:10][N:11]1[CH2:15][CH2:14][CH2:13][C:12]1=[O:16])C>>[CH3:1][NH:2][C:6](=[O:18])[CH2:7][NH:8][C:9](=[O:17])[CH2:10][N:11]1[CH2:15][CH2:14][CH2:13][C:12]1=[O:16]31 g (1 mole) of methylamine are added to 18.24 g (0.08 mole) of N-(2-oxo-1-pyrrolidineacetyl)-glycine ethyl ester and the reaction mixture is kept at -20° C. for 8 hours, while stirring. It is then evaporated and the residue is recrystallized from absolute ethanol, 15.7 g. of N-methyl-2-(2-oxo-1-pyrrolidineacetamido)-acetamide being obtained (yield: 92% of theory); M.P. 139°-140° C.
Wird geladen…