(4R,5R)-3-N-tert-butoxycarbonyl-4-tert-butyldiphenylsilyloxymethyl-5-<3''-hydroxypropyl>-2,2-dimethyl-1,3-oxazolidine

(R)-2-tert-butoxycarbonylamino-3-(2-thien-3-ylethoxy)propionic acid

[(1R,2R)-1-(tert-Butyl-diphenyl-silanyloxymethyl)-2-hydroxy-pent-4-enyl]-carbamic acid tert-butyl ester

[(R)-1-(tert-Butyl-dimethyl-silanyloxymethyl)-2-(2,2-dimethyl-4,6-dioxo-[1,3]dioxan-5-ylidene)-2-hydroxy-ethyl]-carbamic acid tert-butyl ester

tert-butyl (1R,2S)-N-[2-hydroxy-1-(hydroxymethyl)-3-heptadecynyl]-carbamate