[(S)-1-(4-Methoxy-phenyl)-ethyl]-[1-(2-trimethylsilanyl-furan-3-yl)-meth-(E)-ylidene]-amine

(4S,5S) 5-isopropyl-2-oxo-oxazolidine-4-carboxylic acid benzyl ester

(4S,5S) 5-isopropyl-2-oxo-oxazolidine-3,4-dicarboxylic acid 4-benzyl ester 3-tert-butyl ester

phenylmethyl (2S,3S)-2-azido-3-hydroxy-4-methylpentanoate

(3S,4S,8S)-8-Isopropyl-2-[(S)-1-(4-methoxy-phenyl)-ethyl]-1,6-dioxo-3-(2-trimethylsilanyl-furan-3-yl)-7-oxa-2,5-diaza-spiro[3.4]octane-5-carboxylic acid tert-butyl ester