(E)-(S)-4-((2R,5S)-2-Benzyl-5-benzylsulfanylcarbonylamino-6-methyl-4-oxo-heptanoylamino)-6-(trityl-carbamoyl)-hex-2-enoic acid ethyl ester

tert-butyl (S)-1-((2S,4R)-4-benzyltetrahydro-5-oxofuran-2-yl)-2-methylpropylcarbamate

(3R,5S)-5-((S)-1-Azido-2-methyl-propyl)-3-(4-methyl-benzyl)-dihydro-furan-2-one

(E)-11-methyl-9-dodecenenitrile

(3R,5S)-5-((S)-1-Azido-2-methyl-propyl)-3-(4-trifluoromethyl-benzyl)-dihydro-furan-2-one