Conformational study of 'Cis and trans' N-formyl-N-methyl-l-glycine-N′-amide and N-acetyl-N-methyl-l-glycine-N′-methylamide. An ab-initio and DFT study

Only one conformation, the γ form, was obtained from DFT calculations for the trans isomers. Two conformations (ε and δ) were obtained for the cis isomers of these compounds.