4-Boc-aMinoMethyl-3-hydroxy-1-Boc-pyrrolidine

tert-butyl 3-[2-(tert-butoxy)-2-oxoethyl]-4-hydroxypyrrolidine-1-carboxylate

tert-Butyl 3-(((tert-butoxycarbonyl)aMino)Methyl)-4-hydroxypyrrolidine-1-carboxylate