(3S,5S)-5-((S)-1-azido-2-(4-fluoro-3-(3-methoxypropoxy)benzyloxy)ethyl)-3-isopropyldihydrofuran-2(3H)-one

(2S,4S,5S)-5-azido-6-[4-fluoro-3-(3-methoxy-propoxy)-benzyloxy]-4-hydroxy-2-isopropyl-hexanoic acid [(1S,2S)-1-(4-fluoro-benzylcarbamoyl)-2-methyl-butyl]-amide

(2S,4S,5S)-5-amino-6-[4-fluoro-3-(3-methoxy-propoxy)-benzyloxy]-4-hydroxy-2-isopropyl-hexanoic acid [(1S,2S)-1-(4-fluoro-benzylcarbamoyl)-2-methyl-butyl]-amide