(2S,3R,6S)-6-[(R)-5-Hydroxy-4-(tetrahydro-pyran-2-yloxy)-pentyl]-2-methyl-3-triisopropylsilanyloxy-piperidine-1-carboxylic acid allyl ester

(2S,3R,6R)-6-[(R)-5-(2,2-Dimethyl-propionyloxy)-4-hydroxy-pent-1-ynyl]-2-methyl-3-triisopropylsilanyloxy-piperidine-1-carboxylic acid benzyl ester

Methanesulfonic acid (R)-1-((R)-5-oxo-tetrahydro-furan-2-yl)-ethyl ester