{(S)-2-Methyl-1-[(2S,5S)-2-methyl-5-((2S,4R)-4-methyl-5-oxo-tetrahydro-furan-2-yl)-3-oxo-[1,4]diazecane-1-carbonyl]-propyl}-carbamic acid tert-butyl ester

[(S)-1-(Allyl-{(S)-1-[(S)-1-((2S,4R)-4-methyl-5-oxo-tetrahydro-furan-2-yl)-pent-4-enylcarbamoyl]-ethyl}-carbamoyl)-2-methyl-propyl]-carbamic acid tert-butyl ester

(3R,5S)-5-((S)-1-Amino-pent-4-enyl)-3-methyl-dihydro-furan-2-one

(S)-2-[Allyl-((S)-2-tert-butoxycarbonylamino-3-methyl-butyryl)-amino]-propionic acid

N-Allylalanine methyl ester