(R)-2-((2,2,5,7,8-pentamethylchromane)-6-sulfonamido)-5-(trimethylsilyl)pent-4-ynoic acid

(S)-2-(2,2,5,7,8-Pentamethyl-chroman-6-sulfonylamino)-5-trimethylsilanyl-pent-4-ynoic acid

Ac-propargylglycine

(S)-2-amino-1-((3aS,6R,7aR)-8,8-dimethyl-2,2-dioxidotetrahydro-3H-3a,6-methanobenzo[c]isothiazol-1(4H)-yl)pent-4-yn-1-one

N-Chloroacetyl-D-α-propargylglycine