(S)-2-[(S)-1-(tert-Butyl-dimethyl-silanyloxy)-3-ethoxycarbonyl-prop-2-ynyl]-pyrrolidine-1-carboxylic acid tert-butyl ester

Methanesulfonic acid 3-((3aS,5aR,8aR,8bS)-2,2,7,7-tetramethyl-tetrahydro-bis[1,3]dioxolo[4,5-b;4',5'-d]pyran-3a-yl)-propyl ester

(6R,7R,8R,8aS)-8-(tert-butyldimethylsiloxy)-6,7-dihydroxyindolizidin-5-one

(S)-2-((S)-3-Ethoxycarbonyl-1-hydroxy-prop-2-ynyl)-pyrrolidine-1-carboxylic acid tert-butyl ester