Stereoselective synthesis of L-2-(carboxycyclopropyl)glycines via stereocontrolled 1,3-dipolar cycloadditions of diazomethane on Z- and E-3,4-L-didehydroglutamates OBO esters
J. Rife et al., Stereoselective synthesis of L-2-(carboxycyclopropyl)glycines via stereocontrolled 1,3-dipolar cycloadditions of diazomethane on Z- and E-3,4-L-didehydroglutamates OBO esters, J ORG CHEM, 64(24), 1999, pp. 8958-8961