(2r,4r)-n-boc-4-hydroxy-2-methylpyrrolidine

(2R,4R)-1-(tert-Butoxycarbonyl)-4-hydroxy-2-methylpyrrolidine

(2R,4R)-tert-Butyl 4-hydroxy-2-methylpyrrolidine-1-carboxylate

(2R, 4R)-4-Hydroxy-2-methyl-pyrrolidine-1-carboxylic acid tert-butyl ester

(2R,4R)-4-Hydroxy-2-methyl-1-pyrrolidinecarboxylic acid 1,1-dimethylethyl ester