tert-butyl (5S,6R,2E)-5-hydroxy-6-methyl-2,7-octadienoate

(1S,3E)-4-N-((1R)-1-((4-methoxybenzyl)-2-oxo-2-(2-oxoazetidinyl)ethyl)carbamoyl)-1-((1R)-1-methyl-2-propenyl)but-3-enyl 4-methyl-2-[(tert-butyldimethylsilyl)oxy]pentanoate

3-[(2R)-(tert-butoxycarbonylamino)-3-(4-methoxyphenyl)propanoylamino]propanoic acid

(1S,3E)-4-N-((1R)-1-((4-methoxybenzyl)-2-oxo-2-(2-oxoazetidinyl)ethyl)carbamoyl)-1-((1R)-1-methyl-2-propenyl)but-3-enyl (2S)-2-hydroxy-4-methylpentanoate

(1S)-1-[(1R)-1-methylprop-2-enyl]-3-hydroxypropyl (2S)-4-methyl-2-(1,1,2,2-tetramethyl-1-silapropoxy)pentanoate