(2S,αS)-tert-butyl 1-(N-α-methylbenzylamino)-pyrrolidin-2-yl-acetate

tert-butyl (3S,αS)-3-(N-benzyl-(α-methylbenzyl)amino)-6-oxohexanoate

2-Hexenoic acid, 6-hydroxy-, 1,1-dimethylethyl ester, (2E)-

tert-butyl sorbate

(3R,4E,αS)-tert-butyl 3-(N-allyl-N-α-methylbenzylamino)-hept-4-enoate