methyl (4S,5R)-4-{[(benzyloxy)methyl]}-4,5-dihydro-2-(4-methoxyphenyl)-5-methyloxazole-4-carboxylate

2-benzyloxymethyl-3-hydroxy-1-(4-methoxy-benzyl)-3-methyl-4-methylaminomethyl-5-oxo-pyrrolidine-2-carboxylic acid methyl ester

(2R,3S)-2-Benzyloxymethyl-3-hydroxy-4-iodomethyl-1-(4-methoxy-benzyl)-3-methyl-5-oxo-pyrrolidine-2-carboxylic acid methyl ester

methyl (2R,3R)-2-(4-methoxybenzylamino)-2-{(benzyloxy)methyl}-3-hydroxybutanoate

methyl (2R,3R)-2-(N-(4-methoxybenzyl)acrylamido)-2-((benzyloxy)methyl)-3-hydroxybutanoate