(4S,5S)-4-benzyl-5-(bromomethyl)-3-(tert-butoxycarbonyl)-2,2-dimethyloxazolidine

(2S,3S)-2-azido-1-phenyl-butane-3,4-diol

(3S,4aS,8aS)-

N-tert-butyl-2-[2(R)-hydroxy-4-phenyl-3(S)-azidobutyl]decahydro(4aS,8aS)-isoquinoline-3(S)-carboxamide

(2R,2S)-(3S)-1,2-epoxy-3-phenylmethoxycarbonylamino-4-phenylbutane