phenyl ((2R,3R)-5-(benzyloxy)-1-((tert-butyldimethylsilyl)oxy)-3-iodopentan-2-yl)(3-methylbut-2-en-1-yl)carbamate

(+/-)-[(3Ξ)-2t-carboxy-4c-((Ξ)-β-hydroxy-isopropyl)-pyrrolidin-3r-yl]-acetic acid

[4-(β-ethoxy-isopropyl)-2-carboxy-pyrrolidin-3-yl]-acetic acid,optically inactive

4-(2-Hydroxy-1-methyl-ethyl)-3-methoxycarbonylmethyl-pyrrolidine-1,2-dicarboxylic acid 1-ethyl ester 2-methyl ester

methyl (S)-4-(4-methyl-2,6,7-trioxabicyclo[2.2.2]octan-1-yl)-4-((3-methylbut-2-en-1-yl)(trityl)amino)but-2-enoate